Dr Aris conducted an experiment to investigate social facilitation. He wanted to determine whether participants are faster at completing a complex manual dexterity task when being observed by an audience compared to when they perform the task alone. He recruited 60 volunteers and randomly allocated 30 of them to Condition A (with an audience) and 30 to Condition B (alone).
| Condition A (With an audience) | Condition B (Alone) | |
|---|---|---|
| Total number of participants who completed the task | 12 | 23 |
| Total number of participants who did not complete the task | 18 | 7 |
Identify the experimental design Dr Aris used in this investigation.
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.
