A child watches a ball of modelling clay being pressed into a flat shape.
Identify the stage of development in which Piaget said children first show reversibility.
Using reversibility, state what the child could imagine doing to the flat clay to show that the amount of clay has not changed.
104 exam-style questions 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). Each one has a worked solution and a mark scheme showing where the marks go.