Incremental Valicuty: An applied study using different informants and measurements
Keywords:Incremental validity, hierarchical regression, aggressive, rearing styles, parenting behaviour
Agencies:Esta investigación ha sido subvencionada por el Ministerio de Ciencia y Tecnología dentro de la convocatoria I D I, 2001-2004 mediante el proyecto BSO2001 3042I.
The incremental validity study is an important psychological assessment topic that has been not study very much from psychometrics. In this study, we analyse the children incremental validity reported by different informants (children, classmates, and teachers). The sample comprised 525 schoolchildren (41.3 % boys) in a longitudinal study, ranging at age from 9 to 14 years (12.72 mean; SD =1.57) across the three consecutives years of measurement. In order to predict the maternal behaviour, self-reported source shows the higher incremental validity over hetero-reported source. We discuss alternative methods to study the incremental validity.