Children's Working Memory Measurement Model: Testing of Hich and Baddeley Model, Baddeley and Cowan Model

The aim of the present study was to investigate Children's Working Memory Measurement Model: Testing Theories’ Hich and Baddeley, Baddeley and Cowan. The research design was correlational. The population included all primary school students in Tehran in 1400. Participants were 150 students aged 7 to 10 years who were selected by convenience sampling method. They all responded to the Comprehensive Memory Working Assessment Gray et al. (2017). Data were analyzed by factor analysis. The results of factor analysis showed that the Baddeley four-factor model has a better fit than the Baddeley and Hich three-factor model and  Cown three-factor model. Assessing working memory can provide more important information about children's cognitive function than psychological measures.