A researcher who wants to establish score reliability in an observational study typically determines
a. how well observer-assigned scores correlate with an external criterion.
b. the extent of agreement among observers.
c. how well the observation predicts other events.
Ques. 2Which of the following summarizes the relationship between the standard error measurement and a test's score reliability?
a. The higher the test's reliability, the larger the standard error of measurement.
b. The higher the test's reliability, the smaller the standard error of measurement.
c. The standard error of measurement also provides an estimate of the correlation between true scores and error scores.
d. There is no direct relationship between standard error of measurement and reliability.
Ques. 3Low correlations with tests measuring different constructs provide ____ evidence for the score validity of an instrument.
a. convergent
c. discriminant
b. concurrent
d. predictive
Ques. 4Cronbach's coefficient alpha is used for
a. determining the reliability of true-false tests.
b. determining concurrent validity.
c. computing reliability of tests having items with answers that are weighted differently.
d. obtaining an estimate of test equivalence and stability.
Ques. 5Refer to Exhibit 9-10. Scores on odd items correlated with scores on even items across test takers.
a. test-retest
c. split-half
b. alternate form
d. Kuder-Richardson
Ques. 6Refer to Exhibit 9-10. Scores at time A correlated with scores at time B.
a. test-retest
c. split-half
b. alternate form
d. Kuder-Richardson
Ques. 7Refer to Exhibit 9-10. Direct comparison of item scores by formula.
a. test-retest
c. split-half
b. alternate form
d. Kuder-Richardson
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