This paper serves as an Introduction by the co-editors to a Special Section of Child Development entitled "Meta-analysis and Individual Participant Data Synthesis in Child Development." First, the ...

I read with great interest the recent article by Kastner and colleagues on the effectiveness of multimorbidity interventions for older adults with chronic diseases.1 I assessed the study’s ...

Objective To conduct a meta-analytic review of psychosocial predictors of doping intention, doping use and inadvertent doping in sport and exercise settings. Design Systematic review and meta-analysis ...

Objective To systematically review and synthesise the incidence and characteristics of injuries and illnesses among athletes participating in the Olympic, Youth Olympic and Paralympic Games. Design ...