Message-ID: <CAN4zT8F4R2OkYpAQ6K3m1+OZLK3jHo0VtB4O7vFeGQsz=hO_cw@mail.gmail.com>
Date: 2021-12-13T14:08:18Z
From: Yingkai
Subject: [R-meta] Effect Sizes From Pretest-Posttest-Control Group Designs and effect sizes from Pretest-Posttest designs
Hi Dr. Wolfgang and all,
I am wondering whether one can combine effect sizes from
pretest-posttest-control Group designs and effect sizes from
pretest-posttest designs(no control group) in a meta-analysis?
I know that one should not combine effect sizes from
pretest-posttest-control Group designs and effect sizes from between-group
designs in a meta-analysis.
Best,
--
Yingkai, Associate Professor.
Southwest University, ChongQing, CHINA.
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