David A. Kenny

Estimating and testing mediation and moderation in within-subject designs.

Analyses designed to detect mediation and moderation of treatment effects are increasingly prevalent in research in psychology. The mediation question concerns the processes tha...

Lower level mediation in multilevel models.

Multilevel models are increasingly used to estimate models for hierarchical and repeated measures data. The authors discuss a model in which there is mediation at the lower leve...

The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations.

Separating individual and group effects.

L'article presente une nouvelle strategie statistique pour l'etude des procedes de groupe et des procedes individuels

Process Analysis

This article presents the rationale and procedures for conducting a process analysis in evaluation research. Such an analysis attempts to identify the process that mediates the ...

Statistical power and optimal design in experiments in which samples of participants respond to samples of stimuli.

Researchers designing experiments in which a sample of participants responds to a sample of stimuli are faced with difficult questions about optimal study design. The convention...

Experiments with More Than One Random Factor: Designs, Analytic Models, and Statistical Power

Traditional methods of analyzing data from psychological experiments are based on the assumption that there is a single random factor (normally participants) to which generaliza...