Van Houtte and Jarvis (1995) matched pet owners and non-owners from the same school grade before comparing their psychosocial scores.
Explain what this matching controls and what it cannot show.
[3]
Markscheme
7.2 Studies Questions
36 exam-style questions on Edexcel GCSE Psychology 7.2 Studies, covering 7.2.1 Vohs and Schooler (2008) and 7.2.2 Van Houtte and Jarvis (1995). Each one has a worked solution and a mark scheme showing where the marks go.