Dr. Harrison wanted to investigate whether the presence of a parent affects prosocial sharing behaviors in young toddlers (aged 18 to 24 months). To recruit participants, she posted an appeal on a local baby-and-toddler sensory group's newsletter, inviting interested parents to sign up.
Dr. Harrison recorded the toddlers in two conditions: playing with sharing-oriented toys (like a bead-maze or a shape-sorter) with their parent actively sitting next to them (Condition 1), and playing with the same toys while their parent sat quietly behind a one-way screen (Condition 2). She tallied each time a toddler offered or handed a toy to another toddler.
Explain one strength and one weakness of the sampling technique used by Dr. Harrison in her study on toddler sharing behavior.
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.
