inferential stats Flashcards

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1
Q

how to calculate a wilcoxon test

A
  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

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2
Q

what is type 1 error

A

researcher accepts results significant when not

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3
Q

what is type 2 error

A

accept null when significant

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4
Q

how to calculate man whitney u test

A
  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

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