inferential stats

Question 1

how to calculate a wilcoxon test

Answer 1

1. calculate difference between 2 scores
2. rank difference smallest 1
3. add up all ranks for +ve differences
4. add up all ranks for -ve differences
5. t = smallest value
   N = number of scores( ignore 0 scores)

significant if equal to or less

Question 2

what is type 1 error

Answer 2

researcher accepts results significant when not

Question 3

what is type 2 error

Answer 3

accept null when significant

Question 4

how to calculate man whitney u test

Answer 4

1. rank data in both conditions as one
2. add up ranks for each condition
3. place in formula

significant if equal to or less than CV