Dr. Elizabeth wanted to investigate whether daily screen-time exposure is associated with sustained attention in toddlers during a toy-sorting task. She used an opportunity sampling technique to recruit participants by approaching parents in a local pediatric clinic's waiting room on a Tuesday morning and asking if their toddlers could participate in a 5-minute puzzle-solving challenge.
Dr. Elizabeth recorded how long each child remained focused on the puzzle before looking away or stopping (Condition A: High screen-time group; Condition B: Low screen-time group, as reported by parents).
Explain one strength and one weakness of the sampling technique used by Dr. Elizabeth in her study on toddler attention.
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.
