Moderator analysis in spss 2510/28/2023 ![]() ![]() ![]() The method meta-CART was recently proposed to identify interactions between multiple moderators. However, in most meta-analysis studies, interaction effects are neglected due to the lack of appropriate methods. When there are multiple moderators, they may amplify or attenuate each other’s effect on treatment effectiveness. Knowledge about study features (i.e., moderators) that can explain the heterogeneity in effect sizes can be useful for researchers to assess the effectiveness of existing interventions and design new potentially effective interventions. In meta-analysis, heterogeneity often exists between studies.
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