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  • 1.  repeated measures ANOVA using GLM

    Posted Tue July 12, 2022 09:15 AM

    I am trying to perform a repeated measures ANOVA using the GLM. 
    I have a couple of within-subject variables (confidence in different abilities before and after a training program), and a between-subject variable (previous experience in the field, a binary yes/no variable). I am trying to test weather having previous experience effected elevation in confidence in abilities following the training, in other words - did more experienced trainees acquired les from the training (an interaction effect between the within- and between- variables).

    I found I get different results when using the GLM procedure separately for each of the abilities (the interactions are not significant), and when combining them in a single GLM procedure (the p value is lower). Why is that happening? What is the difference between the two ways?



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    Roi Eliashar
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    #SPSSStatistics


  • 2.  RE: repeated measures ANOVA using GLM

    Posted Tue July 12, 2022 09:20 AM
    Please send me the syntax and data and let me take a look at it. Thanks.
    marcantr@us.ibm.com

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    Rick Marcantonio
    Quality Assurance
    IBM
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    Original Message