statistical testing

Question 1

what are the three factors needed to choose a statistical test

Answer 1

• looking for a difference or correlation
• what experimental design is being used
• level of measurement

Question 2

what are the statistical test

Answer 2

• Chi-squared
• Mann - Whitney
• Unrelated t-test
• related t-test
• sign test
• Wilcoxon
• Spearman’s Rho
• Pearson’s R

Question 3

what are related designs

Answer 3

• repeated measures
• matched pairs

Question 4

what are unrelated designs

Answer 4

independent group designs

Question 5

what is nominal data

Answer 5

• data represented in forms of categories
• discrete - only item item can appear in one of the categories

Question 6

what is ordinal data

Answer 6

• data ordered in some way
• doesn’t have equal intervals between each unit
• ## based on subjective opinion rather than subjective measure

Question 7

what is interval data

Answer 7

• based on numerical scales
• units of equal precisely defined size
• more detail