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What is the Kuder-Richardson (KR-20) coefficient used for, particularly in the context of dichotomous response data?

A. It measures internal consistency in a test with dichotomous questions.
B. It calculates the correlation between two continuous variables.
C. It assesses the reliability of ordinal data.
D. It evaluates the validity of qualitative research methods.

Answer :

Final answer:

The Kuder-Richardson (KR-20) coefficient is used to measure internal consistency in a test with dichotomous questions. It assesses the degree to which similar items on the test are measuring the same construct.

Explanation:

The Kuder-Richardson (KR-20) coefficient is used to measure internal consistency in a test with dichotomous questions. It assesses the degree to which similar items on the test are measuring the same construct. In the context of dichotomous response data, it looks at whether students are consistently answering questions in the same way.

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