A researcher is investigating whether manual dexterity is affected by hand-dominance.
One group of participants is naturally left-handed, and the other group of participants is naturally right-handed.
Participants have to complete a standardized pegboard dexterity puzzle.
Each participant is given a completion speed score in seconds.
State why an 'independent groups' design is suitable for this investigation.
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.