Mr. Miller gives his 5th-grade class a spelling test on Monday. To see if the results are stable, he gives the exact same test again on Thursday without any extra practice in between., Test-Retest, Alternate Form, Internal Consistency, To prevent cheating, Ms. Garcia creates "Version A" and "Version B" of her history exam. She gives both versions to a pilot group to see if the scores on both forms are highly correlated., Test-Retest, Alternate Form, Internal Consistency, After finding a correlation for just one half of her test, a teacher uses the Spearman-Brown formula to estimate the reliability of the entire, longer assessment., Test-Retest, Alternate Form, Internal Consistency, A teacher wants to see if her 50-item science test is consistent. She calculates the correlation between the scores students got on the even-numbered items and the odd-numbered items., Test-Retest, Alternate Form, Internal Consistency

Reliability in Action

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