State the aim of Piaget and Inhelder's (1956) Three Mountains study.
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Markscheme
1.2 Studies Questions
36 exam-style questions on Edexcel GCSE Psychology 1.2 Studies, covering 1.2.1 Piaget and Inhelder (1956) and 1.2.2 Gunderson et al. (2013). Each one has a worked solution and a mark scheme showing where the marks go.