BCS Written Post-Related Psychology Practice Questions - BCS Written Post-Related Psychology, Subject Code 171, Total Marks 200 Exam

Which comparison best distinguishes a laboratory experiment from a survey or a case study?

Only experiments can ever use numbers Experiments manipulate an independent variable and typically use random assignment; surveys and case studies do not Surveys always prove causation more strongly than experiments Case studies are the only method that can study one variable at a time

Correct Answer:

Experiments manipulate an independent variable and typically use random assignment; surveys and case studies do not

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