Worksheets on OCR GCSE Psychology 2.2 Theories/Explanations, covering 2.2.1 Piaget's four invariant stages, 2.2.2 Assimilation and accommodation, 2.2.3 Object permanence, animism, egocentrism, 2.2.4 Decentration, reversibility, conservation; criticisms, 2.2.5 Cognitive Development research study: Piaget (1952), 2.2.6 Dweck's fixed and growth mindsets, 2.2.7 Willingham's learning styles and meaning; criticisms, and 2.2.8 Learning research study: Blackwell et al. (2007), with answers. Print them, or work through one on screen. Write your working straight onto the paper and Genie marks it question by question against the mark scheme.