[R-meta] Difference of difference
@te|@noureve@z @end|ng |rom gm@||@com
Thu Jan 27 22:36:42 CET 2022
Dear Wolfang and the list Members,
I've done a post-hoc after my 3-level model. Below is part of the results.
At Baseline, elementary was larger than the mixed group by .251 (ignore pval).
At post-test1, elementary was larger than the mixed group by .467 (ignore pval).
Shall we again subtract the baseline difference from the post-test1
difference to better understand the difference between mixed and
elementary groups at post-test1?
If yes, can we then conduct a test on that difference and get CIs for it?
Diff SE tval Df pval
mixed Baseline - elementary Baseline -0.251 0.277 -0.905 55 0.984
mixed Post-test1 - elementary Post-test1 -0.467 0.251 -1.861 55 0.582
Thank you so much,
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