statistical testing Flashcards
1
Q
what are the three factors needed to choose a statistical test
A
- looking for a difference or correlation
- what experimental design is being used
- level of measurement
2
Q
what are the statistical test
A
- Chi-squared
- Mann - Whitney
- Unrelated t-test
- related t-test
- sign test
- Wilcoxon
- Spearman’s Rho
- Pearson’s R
3
Q
what are related designs
A
- repeated measures
- matched pairs
4
Q
what are unrelated designs
A
independent group designs
5
Q
what is nominal data
A
- data represented in forms of categories
- discrete - only item item can appear in one of the categories
6
Q
what is ordinal data
A
- data ordered in some way
- doesn’t have equal intervals between each unit
- ## based on subjective opinion rather than subjective measure
7
Q
what is interval data
A
- based on numerical scales
- units of equal precisely defined size
- more detail
