Stats tests

Question 1

What criteria for spearman’s rho

Answer 1

Ordinal / interval level
Establishes correlation

Question 2

Explain Spearman Rho steps

Answer 2

1) order data from smallest - largest
2) rank data (1,2,3, thing)
3) find difference between ranks
4) square difference
5) add up the differences
6) formula
7) strength interpret

Question 3

What is the criteria for Mann Whitney U?

Answer 3

Ordinal / Interval data
Independent measures design
Test for difference

Question 4

Explain steps of Mann Whitney U

Answer 4

1) order and rank ALL scores regardless of condition
2) add totals of ranks in each condition
3) sample sizes too
4) use formula
5) observed value = smallest
6) use table to find (if bigger = not significant)

Question 5

Explain criteria for Wilcoxon

Answer 5

Ordinal / Interval data
Repeated measures design
Test for difference

Question 6

Explain how to do Wilcoxon

Answer 6

1) difference between ratings (0 IGNORED)
2) rank differences
3) sum of least frequent sign (- or +)
4) use table find critical value and N = scores btw
5) conclusion