Carmichael, Hogan and Walter included a control group of 9 participants who saw the figures without any names.
Explain why the researchers included this control group.
[3]
Markscheme
8.2 Studies Questions
40 exam-style questions on Edexcel GCSE Psychology 8.2 Studies, covering 8.2.1 Haber and Levin (2001) and 8.2.2 Carmichael, Hogan and Walter (1932). Each one has a worked solution and a mark scheme showing where the marks go.