Statistical tests and conditions

Question 1

What test is appropriate when looking for a relationship between variables where the data is continuous and the primary interest is the degree of relationship?

Answer 1

Pearson correlation

Question 2

What test is appropriate when looking for a relationship between variables where the data is continuous and the primary interest is the form of the relationship?

Answer 2

Regression analysis

Question 3

What test is appropriate when looking for a relationship between variables where the data is ranked?

Answer 3

Spearman’s Rho

Question 4

What tests are appropriate when looking for a difference between variables with two groups and a between-groups design?

Answer 4

Independent samples t-test (two-sample)

Non-parametric: Mann-Whitney

Question 5

What tests are appropriate when looking for a difference between variables with two groups and a within-groups design?

Answer 5

Paired-samples t-test (related sample)

Non-parametric: Wilcoxon

Question 6

What tests are appropriate when looking for a difference between variables with multiple groups, a between-groups design and one IV?

Answer 6

One-way ANOVA

Non-parametric: Kruskal-Wallis

Question 7

What test is appropriate when looking for a difference between variables with multiple groups, a between-groups design and multiple IVs?

Answer 7

Factorial ANOVA

Question 8

What tests are appropriate when looking for a difference between variables with multiple groups and a within-groups design?

Answer 8

Repeated measures ANOVA

Non-parametric: Friedman’s