Elena investigated whether preschool children shared more toys with peers after watching a cooperative cartoon compared to a competitive cartoon. She recruited her participants by posting an advertisement on a local online parenting forum, utilizing a volunteer sampling technique.
Elena asked the parents of the children in Group A to show their child a 10-minute cooperative cartoon, while parents of children in Group B showed their child a 10-minute competitive cartoon. She then observed the children during a structured play session and recorded the number of times each child shared a toy.
Explain one weakness of Elena using a volunteer sampling technique for her investigation.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
