Exam 5: Reliability and Validity

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If 40% of a test?s observed variance is due to errors of measurement, then what is the reliability coefficient of the test?

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The general Spearman-Brown formula is used to estimate the reliability of a lengthened test.

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Computation of the standard error of estimate requires knowing the reliability coefficient.

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False positive errors are more serious than false negative errors.

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The standard deviation of a particular WISC-III subtest is 3, and its reliability coefficient is .84. What is the standard error of measurement of the subtest?

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Predictive validity is of greatest concern on tests of achievement and personality.

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Differentiate between the standard error of measurement and the standard error of estimate and the ways in which each statistic is used.

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Predictive validity and concurrent validity are both types of criterion-related validity.

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According to classical test theory, s2obs = s2tru + s2err, and r11 = s2tru/s2obs. If the observed variance of a test is 50 and the error variance is 10, what is the estimated reliability of the test?

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The standard error of measurement is used to construct a percentile band around an examinee?s observed test score.

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Which type of reliability takes into account error variance due to both different samples of test items and different conditions of administration?

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The type of validity of greatest concern in personnel decisions is criterion-referenced validity.

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What is meant by test reliability, and what are some procedures for obtaining information concerning it?

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What type of validity is of greatest important for an achievement test?

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Consider the following empirical expectancy table: \quad \quad \quad \quad \quad \quad  Performance Rating\text { Performance Rating} Selection Test Scores 0-1 2-3 4-5 6-7 Totals 76-100 1 3 4 8 51-75 1 3 6 7 17 26-50 3 9 4 16 0-25 5 3 1 9 Totals 9 16 14 11 -If the cutoff score on the selection test is set at 26, what percent of the applicants will be rejected?

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Convergent and discriminant validation are concepts that are applicable to the determination of the content validity of a test.

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The Kuder-Richardson method of determining reliability yields an average Coefficient.

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In general, tests having greater score variability have lower reliabilities than tests with less variability.

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A confidence interval for an examinee?s obtained score on a criterion measure can be determined by using the standard error of

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Assigning applicants to jobs on the basis of their scores on more than one test is most appropriately referred to as

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