Non parametric Test 0.0 / 5 ? PsychologyNon parametric testUniversityNone Created by: francesca_321Created on: 02-06-17 21:24 When do you choose a non parametric test Does not presume normal distribution, Nominal or ordinal data, Not satisfy assumptions underlying parametric data 1 of 13 When do you use a Mann Whittney U test test of difference, ordinal data, independent group design: Has to be more thano oe group 2 of 13 The smaller of U becomes what? U 3 of 13 What does it have to be to be significant? Observed has to be lower than critical 4 of 13 when is Spearman's rank used? RElationship/correlation, ordinal data and co variables 5 of 13 What does it have to be to be significant? Observed has to be higher than critical 6 of 13 When is Wilcoxon Signed Ranks chosen? Difference, ordinal data, repeated measures 7 of 13 How is Wilcoxon worked out? Difference between 2 scores, rank the difference, add the ranks of +ve and -VE and thenw ork out the smallest rank 8 of 13 What does it have to be to be significant Observed value is lower than critical value 9 of 13 What is the Kruskall Wallis test a version of? The One way Anova that can be performed on ordinal (ranked data) 10 of 13 How do you calculate the degrees of Freedom? K-1 (groups - 1) 11 of 13 What does it have to be to be significant? If Observed is higher than critical value 12 of 13 What numbers do you need to work out H? Total number of rankand sample size 13 of 13
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