choosing a statistical test

Question 1

what things do you need to know in order to choose a statistical test?

Answer 1

•experimental design
•level of measurement
•difference/ association

Question 2

when would you use the mann-whitney U test?

Answer 2

•difference
•independent groups (unrelated design)
•ordinal data

Question 3

when would you use wilcoxon T?

Answer 3

•difference
•repeated measures (related design)
•ordinal data (self- report questionnaire)

Question 4

when would you use the unrelated T test?

Answer 4

•difference
•independent groups
•interval data

Question 5

when would you use the related t-test?

Answer 5

•difference
•repeated measures design
•interval data

Question 6

when would you use spearman’s rho?

Answer 6

•correlation
•ordinal or interval data

Question 7

when would you use pearson’s r?

Answer 7

•correlation
•interval data

Question 8

when would you use the chi-squared test?

Answer 8

•difference or association
•independent groups
•nominal data

Question 9

choosing a statistical test diagram

Answer 9