Resource
When Is the Story in the Subgroups? Strategies for Interpreting and Reporting Intervention Effects for Subgroups
“This revised working paper examines strategies for interpreting and reporting estimates of intervention effects for subgroups of a study sample. The paper considers why and how subgroup findings are important for applied research, alternative ways to define subgroups, different research questions that motivate subgroup analyses, and the importance of prespecifying subgroups before analyses are conducted. […]