Methods (Edexcel A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the primary purpose of inferential statistics in psychological research?
What is the primary purpose of inferential statistics in psychological research?
To distinguish real effects from chance
What is the standard significance level accepted in psychology?
What is the standard significance level accepted in psychology?
p < 0.05
What is a Type 1 error?
What is a Type 1 error?
Rejecting null hypothesis when no effect
What is a Type 2 error?
What is a Type 2 error?
Retaining null hypothesis when effect exists
What characterises nominal level data?
What characterises nominal level data?
Categorical data with frequency counts
What is the key limitation of ordinal data?
What is the key limitation of ordinal data?
Equal intervals don't mean equal differences
When should the Wilcoxon Signed Ranks test be used?
When should the Wilcoxon Signed Ranks test be used?
Ordinal data, repeated measures, difference
For Wilcoxon test, when is the result significant?
For Wilcoxon test, when is the result significant?
T value ≤ critical value
For Mann-Whitney test, when is the result significant?
For Mann-Whitney test, when is the result significant?
U value ≤ critical value
When should a one-tailed test be used?
When should a one-tailed test be used?
Directional hypothesis predicting direction