Dr. Aris investigated whether infants (aged 12–18 months) demonstrate better fine motor control during self-feeding when using ergonomically weighted developmental spoons compared to standard plastic baby spoons. He planned to recruit his sample of parents and their infants from a local family health clinic using a volunteer sampling technique.
Dr. Aris asked parents in Group 1 to feed their infants using the weighted spoons, and parents in Group 2 to feed them using the standard spoons. He then recorded the percentage of successful spoon-to-mouth transfers made by each infant.
Describe how Dr. Aris could have recruited his participants using a volunteer sampling technique.
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.
