Hi there folks,
I am carrying out a study (repeated measures design) employing nonparametric statistics ( Friedman's and Wilcoxin signed rank tests as post hoc comparisons) . I need to calculate effect size which SPSS does not process for these particular tests. I'm finding the literature very high brow and am confused with the choice of effect size indexes out there. I think that Cliff's delta is what I should be calculating but am unsure. Does anyone know what is routinely used in these circumstances and is there a computer program that can calculate this for me. Any help you could give would be most appreciated. I can't move on with the project until I have effect size calculated. Thanks.
Yours in crisis,
Lady Laura
I am carrying out a study (repeated measures design) employing nonparametric statistics ( Friedman's and Wilcoxin signed rank tests as post hoc comparisons) . I need to calculate effect size which SPSS does not process for these particular tests. I'm finding the literature very high brow and am confused with the choice of effect size indexes out there. I think that Cliff's delta is what I should be calculating but am unsure. Does anyone know what is routinely used in these circumstances and is there a computer program that can calculate this for me. Any help you could give would be most appreciated. I can't move on with the project until I have effect size calculated. Thanks.
Yours in crisis,
Lady Laura