Variables and Controls (OCR A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the purpose of the independent variable in an experiment?
What is the purpose of the independent variable in an experiment?
It is manipulated to affect the DV
What does operationalisation mean in psychological research?
What does operationalisation mean in psychological research?
Clearly defining variables by measurement
How do extraneous variables differ from confounding variables in their variation?
How do extraneous variables differ from confounding variables in their variation?
EVs don't vary systematically, CVs do
What is a key characteristic of extraneous variables?
What is a key characteristic of extraneous variables?
They are unpredictable nuisance variables
What problem do confounding variables create in an experiment?
What problem do confounding variables create in an experiment?
True source of changes to DV is unclear
What effect can demand characteristics have on participants?
What effect can demand characteristics have on participants?
They lead to behaviour changes
What do demand characteristics potentially reveal to participants?
What do demand characteristics potentially reveal to participants?
The true purpose of the investigation
What aspects can investigator effects include?
What aspects can investigator effects include?
Design, selection & interaction steps
What does randomisation use to control variables?
What does randomisation use to control variables?
Chance
What is the main feature of standardisation in research?
What is the main feature of standardisation in research?
Same procedures for all participants