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  1. J

    Cronbach's alpha with weighted data

    Hi I have a test whose reliability I want to calculate, using Cronbach's alpha. The first 18 questions are scored 0 or 1 (right or wrong). The final 7 questions are scored 0, 1 or 2 (because they are not dichotomously right or wrong, there exists a 'half right' possibility). Is it correct...