Which of the following represents the most direct evidence that a test is a valid measure of a construct?
a. The test predicts success in college.
b. The test scores correlate highly with teachers' ratings.
c. The test includes a representative sample of the skills taught in the course.
d. The test of trait Y places individuals into categories that were predicted from the theory of trait Y.
Ques. 2The Kuder-Richardson 21 formula for estimating the score reliability of a classroom achievement test has the disadvantage that
a. it is difficult to compute.
b. it assumes that all test items are of equal difficulty.
c. it is inappropriate for a power test.
d. the resulting reliability coefficient must be adjusted by using another formula.
Ques. 3Refer to Exhibit 9-5. An achievement test to be given as a pretest and a posttest in a classroom research study
a.
equivalent forms
c.
test-retest
b.
split-half
Ques. 4Refer to Exhibit 9-5. A physical fitness test administered in junior high school
a.
equivalent forms
c.
test-retest
b.
split-half
Ques. 5Refer to Exhibit 9-5. A classroom achievement test used for grading purposes
a.
equivalent forms
c.
test-retest
b.
split-half
Ques. 6Refer to Exhibit 9-5. A high school math test used to predict success in college math.
a.
equivalent forms
c.
test-retest
b.
split-half
Ques. 7Estimates of the score reliability of speeded tests calculated by the split-half procedure are generally
a. too high.
b. too low.
c. accurate.
d. statistically unstable.
e. impossible to interpret.
Ques. 8It has been determined that 30 percent of a test's total variance is error. What is the test's reliability coefficient?
a. .30
c. .70
b. .60
d. .75
Ques. 9A test has a reliability coefficient of .75 and a standard deviation of 10. What is the standard error of measurement of this test?
a. 5.00
b. 8.00
c. 10.00
d. 20.00
e. 32.00
Ques. 10A test designed to measure achievement motivation proved to be very consistent but to have no relation to other measures of motivation or teachers' ratings of motivation. The test is
a. valid and reliable.
c. valid but not reliable.
b. reliable but not valid.
d. neither valid nor reliable.
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