Hello
I have been working on mediation analysis by using STATA. My model is L1->L2->L3 mediation.
I try to find total effects of mediation by using bias-corrected interval by using bootstrapping. However, I only found the result by normal-based interval.
I used command "estat teffects, all" for total effect and used "estat bootstrap" for bias-corrected confidence interval.
Here is the result which I got with normal-based interval. If anyone know how to get bias-corrected confidence interval instead of normal-based, I will be appreciate it.
Thank you
Direct effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1| 1 (constrained)
-----------+----------------------------------------------------------------
ZR652 |
L1 | .8256664 .252527 3.27 0.001 .3307225 1.32061
-----------+----------------------------------------------------------------
ZR653 |
L1 | .5956981 .1836301 3.24 0.001 .2357898 .9556064
-----------+----------------------------------------------------------------
ZR631 |
L2| 1 (constrained)
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR632 |
L2 | 1.075239 .0048015 223.94 0.000 1.065829 1.08465
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR633 |
L2| .9011307 .0049258 182.94 0.000 .8914762 .9107852
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR711 |
L2 | 0 (no path)
L3 | 1 (constrained)
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR712 |
L2 | 0 (no path)
L3 | 1.088491 .0081486 133.58 0.000 1.07252 1.104462
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR713 |
L2 | 0 (no path)
L3| .8144637 .0073958 110.13 0.000 .7999683 .8289592
L1 | 0 (no path)
-------------+----------------------------------------------------------------
Structural |
L2|
L1| .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
L3 |
L2| -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L1 | -.0070817 .0214143 -0.33 0.741 -.0490529 .0348895
------------------------------------------------------------------------------
Indirect effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR652 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR653 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR631 |
L2 | 0 (no path)
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
ZR632 |
L2 | 0 (no path)
L1 | .2294183 .057767 3.97 0.000 .116197 .3426396
-----------+----------------------------------------------------------------
ZR633 |
L2 | 0 (no path)
L1 | .1922696 .0486709 3.95 0.000 .0968764 .2876628
-----------+----------------------------------------------------------------
ZR711 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L3 | 0 (no path)
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
-----------+----------------------------------------------------------------
ZR712 |
L2 | -.141502 .0044709 -31.65 0.000 -.1502649 -.1327391
L3| 0 (no path)
L1 | -.0378999 .024637 -1.54 0.124 -.0861876 .0103878
-----------+----------------------------------------------------------------
ZR713 |
L2 | -.1058789 .0034911 -30.33 0.000 -.1127212 -.0990365
L3 | 0 (no path)
L1 | -.0283586 .018442 -1.54 0.124 -.0645043 .0077871
-------------+----------------------------------------------------------------
Structural |
L2|
L1 | 0 (no path)
-----------+----------------------------------------------------------------
L3 |
L2 | 0 (no path)
L1 | -.0277371 .00692 -4.01 0.000 -.0413 -.0141741
------------------------------------------------------------------------------
Total effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1 | 1 (constrained)
-----------+----------------------------------------------------------------
ZR652 |
L1 | .8256664 .252527 3.27 0.001 .3307225 1.32061
-----------+----------------------------------------------------------------
ZR653 |
L1 | .5956981 .1836301 3.24 0.001 .2357898 .9556064
-----------+----------------------------------------------------------------
ZR631 |
L2| 1 (constrained)
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
ZR632 |
L2 | 1.075239 .0048015 223.94 0.000 1.065829 1.08465
L1 | .2294183 .057767 3.97 0.000 .116197 .3426396
-----------+----------------------------------------------------------------
ZR633 |
L2 | .9011307 .0049258 182.94 0.000 .8914762 .9107852
L1| .1922696 .0486709 3.95 0.000 .0968764 .2876628
-----------+----------------------------------------------------------------
ZR711 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L3 | 1 (constrained)
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
-----------+----------------------------------------------------------------
ZR712 |
L2 | -.141502 .0044709 -31.65 0.000 -.1502649 -.1327391
L3 | 1.088491 .0081486 133.58 0.000 1.07252 1.104462
L1 | -.0378999 .024637 -1.54 0.124 -.0861876 .0103878
-----------+----------------------------------------------------------------
ZR713 |
L2| -.1058789 .0034911 -30.33 0.000 -.1127212 -.0990365
L3 | .8144637 .0073958 110.13 0.000 .7999683 .8289592
L1| -.0283586 .018442 -1.54 0.124 -.0645043 .0077871
-------------+----------------------------------------------------------------
Structural |
L2 |
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
L3 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
------------------------------------------------------------------------------
I have been working on mediation analysis by using STATA. My model is L1->L2->L3 mediation.
I try to find total effects of mediation by using bias-corrected interval by using bootstrapping. However, I only found the result by normal-based interval.
I used command "estat teffects, all" for total effect and used "estat bootstrap" for bias-corrected confidence interval.
Here is the result which I got with normal-based interval. If anyone know how to get bias-corrected confidence interval instead of normal-based, I will be appreciate it.
Thank you
Direct effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1| 1 (constrained)
-----------+----------------------------------------------------------------
ZR652 |
L1 | .8256664 .252527 3.27 0.001 .3307225 1.32061
-----------+----------------------------------------------------------------
ZR653 |
L1 | .5956981 .1836301 3.24 0.001 .2357898 .9556064
-----------+----------------------------------------------------------------
ZR631 |
L2| 1 (constrained)
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR632 |
L2 | 1.075239 .0048015 223.94 0.000 1.065829 1.08465
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR633 |
L2| .9011307 .0049258 182.94 0.000 .8914762 .9107852
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR711 |
L2 | 0 (no path)
L3 | 1 (constrained)
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR712 |
L2 | 0 (no path)
L3 | 1.088491 .0081486 133.58 0.000 1.07252 1.104462
L1| 0 (no path)
-----------+----------------------------------------------------------------
ZR713 |
L2 | 0 (no path)
L3| .8144637 .0073958 110.13 0.000 .7999683 .8289592
L1 | 0 (no path)
-------------+----------------------------------------------------------------
Structural |
L2|
L1| .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
L3 |
L2| -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L1 | -.0070817 .0214143 -0.33 0.741 -.0490529 .0348895
------------------------------------------------------------------------------
Indirect effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR652 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR653 |
L1 | 0 (no path)
-----------+----------------------------------------------------------------
ZR631 |
L2 | 0 (no path)
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
ZR632 |
L2 | 0 (no path)
L1 | .2294183 .057767 3.97 0.000 .116197 .3426396
-----------+----------------------------------------------------------------
ZR633 |
L2 | 0 (no path)
L1 | .1922696 .0486709 3.95 0.000 .0968764 .2876628
-----------+----------------------------------------------------------------
ZR711 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L3 | 0 (no path)
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
-----------+----------------------------------------------------------------
ZR712 |
L2 | -.141502 .0044709 -31.65 0.000 -.1502649 -.1327391
L3| 0 (no path)
L1 | -.0378999 .024637 -1.54 0.124 -.0861876 .0103878
-----------+----------------------------------------------------------------
ZR713 |
L2 | -.1058789 .0034911 -30.33 0.000 -.1127212 -.0990365
L3 | 0 (no path)
L1 | -.0283586 .018442 -1.54 0.124 -.0645043 .0077871
-------------+----------------------------------------------------------------
Structural |
L2|
L1 | 0 (no path)
-----------+----------------------------------------------------------------
L3 |
L2 | 0 (no path)
L1 | -.0277371 .00692 -4.01 0.000 -.0413 -.0141741
------------------------------------------------------------------------------
Total effects
------------------------------------------------------------------------------
| Observed Bootstrap Normal-based
| Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Measurement |
ZR651 |
L1 | 1 (constrained)
-----------+----------------------------------------------------------------
ZR652 |
L1 | .8256664 .252527 3.27 0.001 .3307225 1.32061
-----------+----------------------------------------------------------------
ZR653 |
L1 | .5956981 .1836301 3.24 0.001 .2357898 .9556064
-----------+----------------------------------------------------------------
ZR631 |
L2| 1 (constrained)
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
ZR632 |
L2 | 1.075239 .0048015 223.94 0.000 1.065829 1.08465
L1 | .2294183 .057767 3.97 0.000 .116197 .3426396
-----------+----------------------------------------------------------------
ZR633 |
L2 | .9011307 .0049258 182.94 0.000 .8914762 .9107852
L1| .1922696 .0486709 3.95 0.000 .0968764 .2876628
-----------+----------------------------------------------------------------
ZR711 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L3 | 1 (constrained)
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
-----------+----------------------------------------------------------------
ZR712 |
L2 | -.141502 .0044709 -31.65 0.000 -.1502649 -.1327391
L3 | 1.088491 .0081486 133.58 0.000 1.07252 1.104462
L1 | -.0378999 .024637 -1.54 0.124 -.0861876 .0103878
-----------+----------------------------------------------------------------
ZR713 |
L2| -.1058789 .0034911 -30.33 0.000 -.1127212 -.0990365
L3 | .8144637 .0073958 110.13 0.000 .7999683 .8289592
L1| -.0283586 .018442 -1.54 0.124 -.0645043 .0077871
-------------+----------------------------------------------------------------
Structural |
L2 |
L1 | .2133648 .0538285 3.96 0.000 .1078629 .3188668
-----------+----------------------------------------------------------------
L3 |
L2 | -.1299983 .0040167 -32.36 0.000 -.1378708 -.1221257
L1 | -.0348187 .0226447 -1.54 0.124 -.0792015 .009564
------------------------------------------------------------------------------
