4.2.3.3 FACTORS AFFECTING THE CHOICE OF STATISTICAL TESTING

Question 1

what are the 7 types of statistical tests?

Answer 1

1) The Man-Whitney test (non-parametric)
2) The Wilcoxen test (non-parametric)
3) Chi-squared test (non-parametric)
4) Spearmans’ rho (non-parametric)
5) Unrelated t-test (parametric)
6) Related t-test (parametric)
7) Pearson’s r (parametric)

Question 2

what is a parametric test?

Answer 2

• assume a normal distribution
• use interval data
• assume homogeneity of variance
• more powerful than non-parametric tests

Question 3

what’s a non-parametric test?

Answer 3

• don’t assume a normal distribution
• may use nominal or ordinal data
• don’t assume homogeneity of variance
• weaker than parametric tests

Question 4

fill in the stats table!

Answer 4