AQA Psychology Research Methods
Statistical Test Questions and
Answers3
What does the mnemonic 'Carrots Should Come Mashed With Swede Under Roast Potatoes'? -
ANSWERS-Chi-squared, Sign test, Chi squared, Mann-Whitney, Wilcoxon, Spearman's Rho,
Unrelated t-test, Related t-test; Pearson's r.
Statistical test - ANSWERS-Determines whether a significant difference or correlation exists.
Levels of measurement - ANSWERS-Nominal (categories), ordinal (ranked) and interval (equal
intervals).
Sign test - ANSWERS-Test of difference with nominal data using an related design.
Mann-Whitney - ANSWERS-Test of difference with ordinal data using an unrelated design.
Wilcoxon - ANSWERS-Test of difference with ordinal data using a related design.
Spearman's rho - ANSWERS-Test for correlation with ordinal data.
Pearson's r - ANSWERS-Parametric test for correlation when data is at interval level.
t-test - ANSWERS-Parametric test of difference with interval data with related or unrelated
design.
Statistical Test Questions and
Answers3
What does the mnemonic 'Carrots Should Come Mashed With Swede Under Roast Potatoes'? -
ANSWERS-Chi-squared, Sign test, Chi squared, Mann-Whitney, Wilcoxon, Spearman's Rho,
Unrelated t-test, Related t-test; Pearson's r.
Statistical test - ANSWERS-Determines whether a significant difference or correlation exists.
Levels of measurement - ANSWERS-Nominal (categories), ordinal (ranked) and interval (equal
intervals).
Sign test - ANSWERS-Test of difference with nominal data using an related design.
Mann-Whitney - ANSWERS-Test of difference with ordinal data using an unrelated design.
Wilcoxon - ANSWERS-Test of difference with ordinal data using a related design.
Spearman's rho - ANSWERS-Test for correlation with ordinal data.
Pearson's r - ANSWERS-Parametric test for correlation when data is at interval level.
t-test - ANSWERS-Parametric test of difference with interval data with related or unrelated
design.
