Dr. Mercer investigated the impact of auditory distraction on reading comprehension. He recruited undergraduate students using a self-selected sampling method.
Dr. Mercer instructed participants to read a complex three-page scientific article. In Condition 1, participants read the article while background office chatter was played through headphones. In Condition 2, participants read the same article in complete silence. Afterwards, both groups of participants completed a comprehension test based on the text.
Dr. Mercer used an independent groups design in his investigation.
Explain one strength of Dr. Mercer using an independent groups design in this study.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.