Amara investigated the weapon focus effect on the accuracy of eye-witness recall. She recruited her participants from a local sports club using a convenience sampling technique.
Amara showed her participants a video of a brief interaction inside a post office. In Condition A, the perpetrator was holding a metallic silver handgun. In Condition B, the perpetrator was holding a blue folder. Both groups of participants were then asked to describe five facial characteristics of the perpetrator.
Amara used an independent groups design in her investigation.
Explain one strength of Amara using an independent groups design in her 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.