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Discuss the advantages and disadvantages of open-ended questions.
Cronbach's Alpha
A measure of internal consistency that assesses how closely related a set of items are as a group, often used in survey research.
Internal Consistency
A measure of the reliability of a psychological test that assesses the extent to which different test items that propose to measure the same general construct produce similar results.
Cohen's Kappa
Cohen's Kappa is a statistical measure used to assess the reliability of inter-rater agreement for qualitative (categorical) items, correcting for the chance of agreement.
Item-total Correlation
The relationship between individual item scores and the overall score across all items in a test or questionnaire.
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