This is a preview. Log in through your library . Abstract Multilevel modeling is an increasingly popular technique for analyzing hierarchical data. This article ...

The Observer has compiled a list of 2025 guides, tutorials, and manuals designed to support psychological scientists as they expand their toolboxes of research practices and methods.

The challenge and pleasures of studying child and adolescent peer experiences come from the complexity and the significance of these relationships for development in childhood and adolescence. In ...

What Is A Hierarchical Models? Hierarchical models, also known as hierarchical statistical models, multilevel models or random-effects models, are tools for analysing data with a nested or grouped ...

A convenient summary of the 'importance' of schools is the proportion of the total variance accounted for, which we will call the 'variance partition coefficient' (VPC) given by the formula: and in ...