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  1. B

    Model suggestion

    What is the best model to study in-person attitude change over time?
  2. B

    KALPHA not working

    Hi Everyone, Would you please help me understand why SPSS says "The first word in the line is not recognised as an SPSS statistics command" even though I have installed and activated the Hayes kalpha macro? I would appreciate if you can suggest possible ways on how I can fix this or any other...