Question: To use Cronbach's alpha, the most commonly used reliability index, it is best to test reliability in what way? By measuring the extent to which

To use Cronbach's alpha, the most commonly used reliability index, it is best to test reliability in what way? By measuring the extent to which the assessment measures a specific skill By measuring very different topics in a single survey When using a single construct or idea By comparing a student's score on the same test over time

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