In Gunderson et al.'s (2013) study, the families were already taking part in a study of language development, and nobody knew that praise would later be studied.
Explain one strength of this feature of the study. You must refer to the information above in your answer.
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.