Luận án Tính dễ tổn thương và chiến lược thích ứng biến đổi khí hậu trong sinh kế của người dân tộc Khmer ở đồng bằng sông Cửu Long

---------------------------------------------------------------- Total 1921612.03 425 4521.44008 Bartlett's test for equal variances: chi2(2) = 174.7113 Prob>chi2 = 0.000 33 . pwmean TONGTHU, over(TINH) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : TINH --------------------------- | Number of | Comparisons -------------+------------- TINH | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey TONGTHU | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- TINH | 2 vs 1 | 37.60485 7.187491 5.23 0.000 20.69993 54.50977 3 vs 1 | -1.203445 8.241678 -0.15 0.988 -20.58781 18.18092 3 vs 2 | -38.80829 8.173896 -4.75 0.000 -58.03324 -19.58335 ------------------------------------------------------------------------------ . oneway THUNN TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 216666.423 2 108333.211 35.70 0.0000 Within groups 1283699.7 423 3034.75107 ------------------------------------------------------------------------ Total 1500366.13 425 3530.27324 . pwmean THUNN, over(TINH) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : TINH --------------------------- | Number of | Comparisons -------------+------------- TINH | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey THUNN | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- TINH | 2 vs 1 | 50.62186 6.112947 8.28 0.000 36.24426 64.99946 3 vs 1 | 15.31983 7.009531 2.19 0.075 -1.16653 31.8062 3 vs 2 | -35.30203 6.951883 -5.08 0.000 -51.6528 -18.95125 ------------------------------------------------------------------------------ . oneway THUPNN TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 21501.8681 2 10750.934 6.02 0.0027 Within groups 755927.076 423 1787.06165 ------------------------------------------------------------------------ Total 777428.944 425 1829.24457 Bartlett's test for equal variances: chi2(2) = 32.6525 Prob>chi2 = 0.000 . pwmean THUPNN, over(TINH) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : TINH --------------------------- | Number of | Comparisons -------------+------------- TINH | 3 --------------------------- 34 ------------------------------------------------------------------------------ | Tukey Tukey THUPNN | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- TINH | 2 vs 1 | -13.01701 4.690929 -2.77 0.016 -24.05004 -1.983983 3 vs 1 | -16.67179 5.378946 -3.10 0.006 -29.32303 -4.020553 3 vs 2 | -3.654782 5.334708 -0.69 0.772 -16.20197 8.892411 ------------------------------------------------------------------------------ . oneway TONGVAY TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 8810.86564 2 4405.43282 0.81 0.4435 Within groups 2287791.74 423 5408.4911 ------------------------------------------------------------------------ Total 2296602.6 425 5403.77083 Bartlett's test for equal variances: chi2(2) = 46.0483 Prob>chi2 = 0.000 . oneway DUNO TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 3513.97369 2 1756.98684 0.45 0.6395 Within groups 1660492.2 423 3925.51347 ------------------------------------------------------------------------ Total 1664006.17 425 3915.30864 Bartlett's test for equal variances: chi2(2) = 39.7573 Prob>chi2 = 0.000 . oneway LVIce TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 1.38926064 2 .694630318 18.20 0.0000 Within groups 16.1458795 423 .038169928 ------------------------------------------------------------------------ Total 17.5351402 425 .041259153 Bartlett's test for equal variances: chi2(2) = 29.9909 Prob>chi2 = 0.000 . pwmean LVIce, over(TINH) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : TINH --------------------------- | Number of | Comparisons -------------+------------- TINH | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey LVIce | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- TINH | 2 vs 1 | -.1299775 .0216795 -6.00 0.000 -.1809676 -.0789874 3 vs 1 | -.0514271 .0248593 -2.07 0.098 -.1098959 .0070417 3 vs 2 | .0785504 .0246548 3.19 0.004 .0205625 .1365383 ------------------------------------------------------------------------------ . oneway LVIIPCCc TINH Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 6.41221662 2 3.20610831 16.58 0.0000 Within groups 81.7799076 423 .193333115 ------------------------------------------------------------------------ Total 88.1921242 425 .20751088 35 . pwmean LVIIPCCc, over(TINH) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : TINH --------------------------- | Number of | Comparisons -------------+------------- TINH | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey LVIIPCCc | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- TINH | 2 vs 1 | .2809915 .0487913 5.76 0.000 .1662348 .3957482 3 vs 1 | .1434966 .0559475 2.56 0.029 .0119086 .2750847 3 vs 2 | -.1374949 .0554874 -2.48 0.036 -.2680007 -.006989 ------------------------------------------------------------------------------ . oneway LD CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 6.56301397 2 3.28150698 1.77 0.1722 Within groups 785.683465 423 1.85740772 ------------------------------------------------------------------------ Total 792.246479 425 1.86410936 Bartlett's test for equal variances: chi2(2) = 5.3740 Prob>chi2 = 0.068 . oneway TYLE CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 3.95254492 2 1.97627246 4.20 0.0156 Within groups 198.996553 423 .470441023 ------------------------------------------------------------------------ Total 202.949098 425 .477527289 Bartlett's test for equal variances: chi2(2) = 38.0460 Prob>chi2 = 0.000 . pwmean TYLE, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey TYLE | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | .1043945 .1247596 0.84 0.680 -.1890392 .3978281 3 vs 1 | -.1639903 .0763752 -2.15 0.082 -.3436241 .0156435 3 vs 2 | -.2683848 .1149632 -2.33 0.052 -.5387775 .0020078 ------------------------------------------------------------------------------ . oneway dientich CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 11879.7086 2 5939.85432 53.15 0.0000 Within groups 47277.3505 423 111.766786 ------------------------------------------------------------------------ Total 59157.0592 425 139.19308 Bartlett's test for equal variances: chi2(2) = 110.4946 Prob>chi2 = 0.000 36 . pwmean dientich, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey dientich | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | 4.884115 1.922994 2.54 0.031 .3612485 9.406981 3 vs 1 | 11.90715 1.177215 10.11 0.000 9.138348 14.67595 3 vs 2 | 7.023035 1.771996 3.96 0.000 2.855314 11.19076 ------------------------------------------------------------------------------ . oneway THUNN CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 204349.123 2 102174.561 33.35 0.0000 Within groups 1296017 423 3063.86998 ------------------------------------------------------------------------ Total 1500366.13 425 3530.27324 Bartlett's test for equal variances: chi2(2) = 206.0096 Prob>chi2 = 0.000 . pwmean THUNN, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey THUNN | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | 10.6278 10.06831 1.06 0.542 -13.05278 34.30839 3 vs 1 | 47.8737 6.163604 7.77 0.000 33.37695 62.37045 3 vs 2 | 37.2459 9.277726 4.01 0.000 15.42476 59.06704 ------------------------------------------------------------------------------ . oneway THUPNN CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 30615.5025 2 15307.7513 8.67 0.0002 Within groups 746813.442 423 1765.51641 ------------------------------------------------------------------------ Total 777428.944 425 1829.24457 Bartlett's test for equal variances: chi2(2) = 8.0130 Prob>chi2 = 0.018 . pwmean THUPNN, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- 37 ------------------------------------------------------------------------------ | Tukey Tukey THUPNN | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | -8.961688 7.642885 -1.17 0.470 -26.93769 9.014319 3 vs 1 | -19.24003 4.67881 -4.11 0.000 -30.24456 -8.235505 3 vs 2 | -10.27834 7.04275 -1.46 0.312 -26.84284 6.286151 ------------------------------------------------------------------------------ . oneway HVAN CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 398.119337 2 199.059668 13.85 0.0000 Within groups 6078.37832 423 14.3696887 ------------------------------------------------------------------------ Total 6476.49765 425 15.238818 Bartlett's test for equal variances: chi2(2) = 0.3278 Prob>chi2 = 0.849 . pwmean HVAN, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey HVAN | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | .8125133 .6895172 1.18 0.467 -.809226 2.434252 3 vs 1 | 2.169243 .4221077 5.14 0.000 1.176449 3.162037 3 vs 2 | 1.35673 .6353749 2.14 0.084 -.137667 2.851127 ------------------------------------------------------------------------------ . oneway M9 CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups .101293549 2 .050646775 3.40 0.0343 Within groups 6.30269734 423 .014899994 ------------------------------------------------------------------------ Total 6.40399089 425 .015068214 Bartlett's test for equal variances: chi2(2) = 30.3469 Prob>chi2 = 0.000 . pwmean M9, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey M9 | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | .0370755 .0222031 1.67 0.218 -.0151461 .0892972 3 vs 1 | .0343264 .0135923 2.53 0.032 .0023574 .0662953 3 vs 2 | -.0027492 .0204597 -0.13 0.990 -.0508702 .0453719 ------------------------------------------------------------------------------ 38 . oneway M10 CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups .041629189 2 .020814594 0.26 0.7731 Within groups 34.1978074 423 .08084588 ------------------------------------------------------------------------ Total 34.2394366 425 .08056338 Bartlett's test for equal variances: chi2(2) = 0.0365 Prob>chi2 = 0.982 . pwmean M10, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey M10 | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | .0312831 .051719 0.60 0.818 -.0903596 .1529259 3 vs 1 | -.002818 .0316613 -0.09 0.996 -.0772851 .0716491 3 vs 2 | -.0341012 .0476579 -0.72 0.754 -.1461923 .0779899 ------------------------------------------------------------------------------ . oneway TCXH CLAP Analysis of Variance Source SS df MS F Prob > F ------------------------------------------------------------------------ Between groups 9.85923785 2 4.92961893 8.50 0.0002 Within groups 245.194753 423 .579656626 ------------------------------------------------------------------------ Total 255.053991 425 .600127037 Bartlett's test for equal variances: chi2(2) = 5.8107 Prob>chi2 = 0.055 . pwmean TCXH, over(CLAP) mcompare(tukey) effects Pairwise comparisons of means with equal variances over : CLAP --------------------------- | Number of | Comparisons -------------+------------- CLAP | 3 --------------------------- ------------------------------------------------------------------------------ | Tukey Tukey TCXH | Contrast Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- CLAP | 2 vs 1 | .3650053 .1384863 2.64 0.024 .0392866 .690724 3 vs 1 | .3388084 .0847784 4.00 0.000 .1394103 .5382064 3 vs 2 | -.0261969 .1276121 -0.21 0.977 -.3263396 .2739457 39 3.2 Kiểm định Chi-square 40 41 42 43 . tab CLAP GIOI, col chi2 +-------------------+ | Key | |-------------------| | frequency | | column percentage | +-------------------+ | GIOI CLAP | 0 1 | Total -----------+----------------------+---------- 1 | 70 45 | 115 | 21.54 44.55 | 27.00 -----------+----------------------+---------- 2 | 33 8 | 41 | 10.15 7.92 | 9.62 -----------+----------------------+---------- 3 | 222 48 | 270 | 68.31 47.52 | 63.38 -----------+----------------------+---------- Total | 325 101 | 426 | 100.00 100.00 | 100.00 Pearson chi2(2) = 20.7709 Pr = 0.000 . tab CLAP NHA, col chi2 +-------------------+ | Key | |-------------------| | frequency | | column percentage | +-------------------+ | NHA CLAP | 0 1 | Total -----------+----------------------+---------- 1 | 68 47 | 115 | 30.91 22.82 | 27.00 -----------+----------------------+---------- 2 | 29 12 | 41 | 13.18 5.83 | 9.62 -----------+----------------------+---------- 3 | 123 147 | 270 | 55.91 71.36 | 63.38 -----------+----------------------+---------- Total | 220 206 | 426 | 100.00 100.00 | 100.00 Pearson chi2(2) = 12.5704 Pr = 0.002 3.3 Kiểm định T-test . sdtest LVIce, by (GIOI) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 325 .3615722 .01093 .1970439 .3400694 .3830749 1 | 101 .4893136 .0191349 .1923035 .4513504 .5272767 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 1.0499 Ho: ratio = 1 degrees of freedom = 324, 100 Ha: ratio 1 Pr(F f) = 0.7865 Pr(F > f) = 0.3933 44 . ttest LVIce, by (GIOI) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 325 .3615722 .01093 .1970439 .3400694 .3830749 1 | 101 .4893136 .0191349 .1923035 .4513504 .5272767 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | -.1277414 .0223212 -.1716153 -.0838674 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = -5.7229 Ho: diff = 0 degrees of freedom = 424 Ha: diff 0 Pr(T |t|) = 0.0000 Pr(T > t) = 1.0000 . sdtest LVIce, by (NHA) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 220 .4437625 .0118905 .1763644 .4203281 .4671969 1 | 206 .3364266 .0149967 .2152436 .3068589 .3659942 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 0.6714 Ho: ratio = 1 degrees of freedom = 219, 205 Ha: ratio 1 Pr(F f) = 0.9981 . ttest LVIce, by (NHA) unequal Two-sample t test with unequal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 220 .4437625 .0118905 .1763644 .4203281 .4671969 1 | 206 .3364266 .0149967 .2152436 .3068589 .3659942 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | .1073359 .0191386 .0697103 .1449616 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = 5.6084 Ho: diff = 0 Satterthwaite's degrees of freedom = 396.925 Ha: diff 0 Pr(T |t|) = 0.0000 Pr(T > t) = 0.0000 . sdtest LVIce, by (HONGHEO) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 372 .3771347 .0104432 .2014217 .3565993 .39767 1 | 54 .4932876 .0254054 .1866904 .4423309 .5442443 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 1.1640 Ho: ratio = 1 degrees of freedom = 371, 53 Ha: ratio 1 Pr(F f) = 0.5065 Pr(F > f) = 0.2532 45 . ttest LVIce, by (HONGHEO) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 372 .3771347 .0104432 .2014217 .3565993 .39767 1 | 54 .4932876 .0254054 .1866904 .4423309 .5442443 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | -.1161529 .0290726 -.1732972 -.0590086 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = -3.9953 Ho: diff = 0 degrees of freedom = 424 Ha: diff 0 Pr(T |t|) = 0.0001 Pr(T > t) = 1.0000 . sdtest LVIce, by (TINDUNG) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 162 .3483102 .0165217 .2102869 .315683 .3809374 1 | 264 .418581 .0119529 .1942117 .3950454 .4421165 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 1.1724 Ho: ratio = 1 degrees of freedom = 161, 263 Ha: ratio 1 Pr(F f) = 0.2541 Pr(F > f) = 0.1270 . ttest LVIce, by (TINDUNG) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 162 .3483102 .0165217 .2102869 .315683 .3809374 1 | 264 .418581 .0119529 .1942117 .3950454 .4421165 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | -.0702708 .0200073 -.1095967 -.0309448 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = -3.5122 Ho: diff = 0 degrees of freedom = 424 Ha: diff 0 Pr(T |t|) = 0.0005 Pr(T > t) = 0.9998 . sdtest LVIce, by (TCTT) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 156 .4785005 .0128633 .1606626 .4530905 .5039105 1 | 270 .3417983 .0126848 .2084329 .3168241 .3667725 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 0.5942 Ho: ratio = 1 degrees of freedom = 155, 269 Ha: ratio 1 Pr(F f) = 0.9998 46 . ttest LVIce, by (TCTT) unequal Two-sample t test with unequal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 156 .4785005 .0128633 .1606626 .4530905 .5039105 1 | 270 .3417983 .0126848 .2084329 .3168241 .3667725 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | .1367022 .0180657 .101184 .1722204 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = 7.5669 Ho: diff = 0 Satterthwaite's degrees of freedom = 390.34 Ha: diff 0 Pr(T |t|) = 0.0000 Pr(T > t) = 0.0000 . sdtest LVIce, by (tcxh) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 163 .4727385 .0140034 .1787834 .4450858 .5003913 1 | 263 .3417309 .0124204 .2014254 .3172744 .3661875 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 0.7878 Ho: ratio = 1 degrees of freedom = 162, 262 Ha: ratio 1 Pr(F f) = 0.9512 . ttest LVIce, by (tcxh) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 163 .4727385 .0140034 .1787834 .4450858 .5003913 1 | 263 .3417309 .0124204 .2014254 .3172744 .3661875 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | .1310076 .0192481 .093174 .1688413 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = 6.8062 Ho: diff = 0 degrees of freedom = 424 Ha: diff 0 Pr(T |t|) = 0.0000 Pr(T > t) = 0.0000 . sdtest LVIce, by (chudong) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 156 .5207166 .0128377 .1603429 .4953572 .5460761 1 | 270 .3174068 .0114146 .1875611 .2949335 .3398801 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 0.7308 Ho: ratio = 1 degrees of freedom = 155, 269 Ha: ratio 1 Pr(F f) = 0.9842 47 . ttest LVIce, by (chudong) unequal Two-sample t test with unequal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 156 .5207166 .0128377 .1603429 .4953572 .5460761 1 | 270 .3174068 .0114146 .1875611 .2949335 .3398801 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | .2033098 .0171785 .1695287 .2370909 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = 11.8351 Ho: diff = 0 Satterthwaite's degrees of freedom = 365.373 Ha: diff 0 Pr(T |t|) = 0.0000 Pr(T > t) = 0.0000 . sdtest LVIce, by (ungpho) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 385 .3859425 .0106559 .2090845 .3649912 .4068938 1 | 41 .4474086 .0192556 .1232961 .4084916 .4863257 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 2.8757 Ho: ratio = 1 degrees of freedom = 384, 40 Ha: ratio 1 Pr(F f) = 0.0001 Pr(F > f) = 0.0001 . ttest LVIce, by (ungpho) unequal Two-sample t test with unequal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 385 .3859425 .0106559 .2090845 .3649912 .4068938 1 | 41 .4474086 .0192556 .1232961 .4084916 .4863257 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | -.0614661 .0220074 -.1053861 -.0175461 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = -2.7930 Ho: diff = 0 Satterthwaite's degrees of freedom = 67.5907 Ha: diff 0 Pr(T |t|) = 0.0068 Pr(T > t) = 0.9966 . sdtest LVIce, by (HTDP) Variance ratio test ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 247 .4124188 .0121656 .1911967 .3884568 .4363807 1 | 179 .363487 .016134 .2158576 .3316486 .3953255 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ------------------------------------------------------------------------------ ratio = sd(0) / sd(1) f = 0.7846 Ho: ratio = 1 degrees of freedom = 246, 178 Ha: ratio 1 Pr(F f) = 0.9606 48 . ttest LVIce, by (HTDP) unequal Two-sample t test with unequal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 247 .4124188 .0121656 .1911967 .3884568 .4363807 1 | 179 .363487 .016134 .2158576 .3316486 .3953255 ---------+-------------------------------------------------------------------- combined | 426 .3918583 .0098414 .2031235 .3725145 .4112021 ---------+-------------------------------------------------------------------- diff | .0489317 .0202066 .0091921 .0886714 ------------------------------------------------------------------------------ diff = mean(0) - mean(1) t = 2.4216 Ho: diff = 0 Satterthwaite's degrees of freedom = 354.93 Ha: diff 0 Pr(T |t|) = 0.0160 Pr(T > t) = 0.0080 49 PHỤ LỤC 4. PHÂN TÍCH THÀNH PHẦN CHÍNH PCA 4.1 Kết quả PCA cho các thành phần phụ . pca S11 S12 S13 S14 S15, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .6501644 Rotation: (unrotated = principal) Rho = 0.5024 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .326637 .168826 0.5024 0.5024 Comp2 | .157811 .0466974 0.2427 0.7451 Comp3 | .111114 .0748182 0.1709 0.9160 Comp4 | .0362955 .0179881 0.0558 0.9718 Comp5 | .0183074 . 0.0282 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S11 | 0.0201 | .01897 S12 | 0.3896 | .1317 S13 | 0.1125 | .0355 S14 | 0.5150 | .08176 S15 | 0.7550 | .05558 -------------------------------------- . pca S21 S22 S23 S24 S25, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .9896879 Rotation: (unrotated = principal) Rho = 0.3902 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .386145 .189229 0.3902 0.3902 Comp2 | .196916 .00727724 0.1990 0.5891 Comp3 | .189639 .0452739 0.1916 0.7808 Comp4 | .144365 .071742 0.1459 0.9266 Comp5 | .072623 . 0.0734 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S21 | 0.2176 | .1782 S22 | -0.6377 | .06878 S23 | 0.3600 | .07148 S24 | 0.0794 | .1951 S25 | 0.6404 | .09001 -------------------------------------- . pca S31 S32 S33 S34, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .5502126 Rotation: (unrotated = principal) Rho = 0.3710 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .204113 .0498732 0.3710 0.3710 50 Comp2 | .15424 .043819 0.2803 0.6513 Comp3 | .110421 .0289826 0.2007 0.8520 Comp4 | .0814384 . 0.1480 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S31 | 0.8617 | .03812 S32 | 0.2709 | .1258 S33 | 0.1394 | .08131 S34 | 0.4057 | .1009 -------------------------------------- . pca S41 S42 S43 S44 S45 S46, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .8138914 Rotation: (unrotated = principal) Rho = 0.3543 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .288323 .0393781 0.3543 0.3543 Comp2 | .248945 .104563 0.3059 0.6601 Comp3 | .144381 .0547727 0.1774 0.8375 Comp4 | .0896085 .0628613 0.1101 0.9476 Comp5 | .0267473 .0108602 0.0329 0.9805 Comp6 | .0158871 . 0.0195 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S41 | 0.0068 | .01605 S42 | 0.3359 | .2001 S43 | 0.7229 | .09495 S44 | 0.5930 | .08831 S45 | 0.0726 | .02814 S46 | 0.0877 | .098 -------------------------------------- . pca S51 S52, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .35657 Rotation: (unrotated = principal) Rho = 0.6890 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .245676 .134782 0.6890 0.6890 Comp2 | .110894 . 0.3110 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S51 | 0.0209 | .1108 S52 | 0.9998 | .00004846 -------------------------------------- . pca S61 S62, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .3120377 51 Rotation: (unrotated = principal) Rho = 0.7105 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .221712 .131387 0.7105 0.7105 Comp2 | .0903255 . 0.2895 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S61 | 0.1292 | .08882 S62 | 0.9916 | .001508 -------------------------------------- . pca S71 S72 S73, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .2078756 Rotation: (unrotated = principal) Rho = 0.5858 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .121783 .0425344 0.5858 0.5858 Comp2 | .0792487 .072405 0.3812 0.9671 Comp3 | .00684375 . 0.0329 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S71 | 0.1320 | .007152 S72 | 0.7039 | .03987 S73 | 0.6979 | .03907 -------------------------------------- . pca S81 S82 S83 S84, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .7177683 Rotation: (unrotated = principal) Rho = 0.5844 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .419491 .249942 0.5844 0.5844 Comp2 | .169549 .0615491 0.2362 0.8207 Comp3 | .108 .0872725 0.1505 0.9711 Comp4 | .0207278 . 0.0289 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S81 | 0.0687 | .1293 S82 | 0.7003 | .01126 S83 | 0.7095 | .01079 S84 | -0.0385 | .147 -------------------------------------- . pca S91 S92 S93 S94 S95 S96, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .4295052 Rotation: (unrotated = principal) Rho = 0.5816 -------------------------------------------------------------------------- 52 Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .249783 .138562 0.5816 0.5816 Comp2 | .11122 .0784568 0.2590 0.8405 Comp3 | .0327637 .0046476 0.0763 0.9168 Comp4 | .0281161 .0240125 0.0655 0.9823 Comp5 | .00410358 .00058496 0.0096 0.9918 Comp6 | .00351862 . 0.0082 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S91 | -0.0370 | .03139 S92 | 0.9910 | .0006493 S93 | 0.1047 | .0454 S94 | 0.0099 | .003541 S95 | -0.0741 | .09452 S96 | -0.0075 | .004225 -------------------------------------- . pca S101 S102 S103 S104, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .6548799 Rotation: (unrotated = principal) Rho = 0.4959 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .324769 .177089 0.4959 0.4959 Comp2 | .14768 .0259314 0.2255 0.7214 Comp3 | .121748 .0610654 0.1859 0.9073 Comp4 | .0606829 . 0.0927 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- S101 | 0.5527 | .09726 S102 | 0.4415 | .09538 S103 | 0.4518 | .0791 S104 | 0.5436 | .05838 -------------------------------------- 4.2 Tính pca của 03 nhân tố chính của lvi-ipcc (khả năng thích ứng, độ nhạy cảm và mức độ phơi nhiễm) . pca M1c M2c M3c M4c, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = 1.150437 Rotation: (unrotated = principal) Rho = 0.8038 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .92475 .833688 0.8038 0.8038 Comp2 | .0910618 .0100418 0.0792 0.8830 Comp3 | .08102 .0274142 0.0704 0.9534 Comp4 | .0536057 . 0.0466 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- 53 Variable | Comp1 | Unexplained -------------+----------+------------- M1c | 0.1443 | .08241 M2c | 0.9786 | .003585 M3c | 0.1345 | .0558 M4c | 0.0587 | .08389 -------------------------------------- . pca M5c M6c M7c M8c, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .6664765 Rotation: (unrotated = principal) Rho = 0.3643 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .242828 .041687 0.3643 0.3643 Comp2 | .201141 .0248192 0.3018 0.6661 Comp3 | .176322 .130136 0.2646 0.9307 Comp4 | .0461855 . 0.0693 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- M5c | 0.9175 | .03137 M6c | 0.0322 | .1763 M7c | 0.1123 | .0487 M8c | 0.3802 | .1673 -------------------------------------- . pca M9c M10c, components(1) covariance Principal components/covariance Number of obs = 426 Number of comp. = 1 Trace = .3384791 Rotation: (unrotated = principal) Rho = 0.7584 -------------------------------------------------------------------------- Component | Eigenvalue Difference Proportion Cumulative -------------+------------------------------------------------------------ Comp1 | .256705 .174932 0.7584 0.7584 Comp2 | .0817737 . 0.2416 1.0000 -------------------------------------------------------------------------- Principal components (eigenvectors) -------------------------------------- Variable | Comp1 | Unexplained -------------+----------+------------- M9c | 0.9992 | .0001262 M10c | 0.0393 | .08165 -------------------------------------- 54 PHỤ LỤC 5. MÔ HÌNH HỒI QUY 5.1 Mô hình hồi quy . reg LVIce GIOI HVAN LD TYLE HONGHEO dientich NHA THUNN THUPNN TINDUNG TCTT TCXH HTDP M9 M10 chudong ungpho Source | SS df MS Number of obs = 426 -------------+---------------------------------- F(17, 408) = 73.88 Model | 13.2355721 17 .778563064 Prob > F = 0.0000 Residual | 4.29956807 408 .010538157 R-squared = 0.7548 -------------+---------------------------------- Adj R-squared = 0.7446 Total | 17.5351402 425 .041259153 Root MSE = .10266 ------------------------------------------------------------------------------ LVIce | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- GIOI | .0703706 .0124974 5.63 0.000 .0458033 .0949379 HVAN | -.0077211 .0014858 -5.20 0.000 -.0106419 -.0048003 LD | .0176419 .0046878 3.76 0.000 .0084266 .0268571 TYLE | .0160932 .008962 1.80 0.073 -.0015244 .0337107 HONGHEO | .0264328 .0156868 1.69 0.093 -.0044043 .0572699 dientich | -.0024424 .0006863 -3.56 0.000 -.0037914 -.0010933 NHA | -.0252397 .0108298 -2.33 0.020 -.0465289 -.0039505 THUNN | -.0005662 .0001398 -4.05 0.000 -.000841 -.0002915 THUPNN | .0007598 .0001285 5.91 0.000 .0005073 .0010123 TINDUNG | .0393671 .0106663 3.69 0.000 .0183994 .0603348 TCTT | -.0693518 .0109771 -6.32 0.000 -.0909306 -.047773 TCXH | -.037559 .0072589 -5.17 0.000 -.0518286 -.0232894 HTDP | -.0191055 .0110014 -1.74 0.083 -.040732 .002521 M9 | .537839 .0427332 12.59 0.000 .4538344 .6218436 M10 | .1071765 .0184901 5.80 0.000 .0708286 .1435243 chudong | -.1228537 .0136247 -9.02 0.000 -.149637 -.0960704 ungpho | -.0684946 .0196661 -3.48 0.001 -.1071541 -.029835 _cons | .4896093 .0299541 16.35 0.000 .4307256 .5484929 ------------------------------------------------------------------------------ . reg LVIce GIOI HVAN LD TYLE HONGHEO dientich NHA THUNN THUPNN TINDUNG TCTT TCXH HTDP M9 M10 chudong ungpho, beta Source | SS df MS Number of obs = 426 -------------+---------------------------------- F(17, 408) = 73.88 Model | 13.2355721 17 .778563064 Prob > F = 0.0000 Residual | 4.29956807 408 .010538157 R-squared = 0.7548 -------------+---------------------------------- Adj R-squared = 0.7446 Total | 17.5351402 425 .041259153 Root MSE = .10266 ------------------------------------------------------------------------------ LVIce | Coef. Std. Err. t P>|t| Beta -------------+---------------------------------------------------------------- GIOI | .0703706 .0124974 5.63 0.000 .1475143 HVAN | -.0077211 .0014858 -5.20 0.000 -.1483867 LD | .0176419 .0046878 3.76 0.000 .1185824 TYLE | .0160932 .008962 1.80 0.073 .0547496 HONGHEO | .0264328 .0156868 1.69 0.093 .0433463 dientich | -.0024424 .0006863 -3.56 0.000 -.1418601 NHA | -.0252397 .0108298 -2.33 0.020 -.0621684 THUNN | -.0005662 .0001398 -4.05 0.000 -.1656304 THUPNN | .0007598 .0001285 5.91 0.000 .1599836 TINDUNG | .0393671 .0106663 3.69 0.000 .0941962 TCTT | -.0693518 .0109771 -6.32 0.000 -.1646806 TCXH | -.037559 .0072589 -5.17 0.000 -.1432437 HTDP | -.0191055 .0110014 -1.74 0.083 -.0464809 M9 | .537839 .0427332 12.59 0.000 .3250297 M10 | .1071765 .0184901 5.80 0.000 .1497642 chudong | -.1228537 .0136247 -9.02 0.000 -.2917246 ungpho | -.0684946 .0196661 -3.48 0.001 -.0995678 _cons | .4896093 .0299541 16.35 0.000 . ------------------------------------------------------------------------------ 55 5.3 Kiểm định sự phù hợp của mô hình . sktest LVIce Skewness/Kurtosis tests for Normality ------ joint ------ Variable | Obs Pr(Skewness) Pr(Kurtosis) adj chi2(2) Prob>chi2 -------------+--------------------------------------------------------------- LVIce | 426 0.1541 0.0214 7.10 0.0288 . predict residual, resid . sktest residual Skewness/Kurtosis tests for Normality ------ joint ------ Variable | Obs Pr(Skewness) Pr(Kurtosis) adj chi2(2) Prob>chi2 -------------+--------------------------------------------------------------- residual | 426 0.5575 0.9348 0.35 0.8378 . vif Variable | VIF 1/VIF -------------+---------------------- THUNN | 2.78 0.359590 dientich | 2.64 0.378237 chudong | 1.74 0.574162 LD | 1.65 0.605298 TYLE | 1.55 0.646494 ungpho | 1.36 0.735349 HVAN | 1.36 0.737069 TCXH | 1.28 0.784125 THUPNN | 1.22 0.821428 HTDP | 1.19 0.838935 NHA | 1.18 0.844580 GIOI | 1.14 0.875651 TCTT | 1.13 0.884519 M10 | 1.11 0.900240 M9 | 1.11 0.901123 HONGHEO | 1.10 0.908169 TINDUNG | 1.08 0.922635 -------------+---------------------- Mean VIF | 1.45 . estat hettest Breusch-Pagan / Cook-Weisberg test for heteroskedasticity Ho: Constant variance Variables: fitted values of LVIce chi2(1) = 0.45 Prob > chi2 = 0.5034