摘要: Cognitive models are usually conceptualized at the individual level, but often analyzed group level. The level which analysis can be carried out is dictated by experimental design, traditionally has been chosen for pragmatic reasons. Defining model allows incorporation of difference variables, interest to many researchers, into structure. nested groups with participants under classificatory appropriate when defined That design illustrated a study testing multiplicative anticipated compliance, in medical patients were grouped according symptoms and prognoses associated their diseases. Models cognitive processes commonplace within subset