A student's test performance is sometimes indicated by a confidence interval rather than by a single score. The rationale behind this practice is that:
A) The computation of a single score is not possible for some tests.
B) A single test score is almost always subject to error.
C) Some tests have extremely vague scoring criteria.
D) Tests typically have low reliability.
Ques. 2Which one of the following test scores is farthest from the mean?
A) A z-score of 3
B) An SAT score of 600
C) A stanine of 7
D) An IQ score of 120
Ques. 3Greg took the district-wide achievement test and got a stanine score of 9. Which one of the following is closest to Greg's percentile rank?
A) 14
B) 16
C) 84
D) 98
Ques. 4Which one of the following best characterizes how confidence intervals are used in reporting students' scores on standardized tests?
A) They indicate the norm group to which students are being compared.
B) They show the range of 10 percentile points within which each student's score falls.
C) They indicate how likely it is that each student has mastered a particular topic.
D) They show the range within which each student's actual ability level probably lies.
Ques. 5Erica received these scores on various subtests of a national achievement test:
Test Erica's Raw Score Mean for Norm Group
Algebra 52 54
Physics 116 120
Reading 163 163
French 84 72
On a norm-referenced basis, Erica is achieving at the highest level in:
A) Algebra.
B) Physics.
C) Reading.
D) French.
Ques. 6Magnolia, who is in sixth grade, gets an NCE score of 87 on a standardized mathematics achievement test for sixth graders. You should conclude that Magnolia:
A) Has mastered most of the concepts in her school's sixth-grade math curriculum.
B) Probably hasn't yet mastered basic addition and subtraction facts.
C) Did better on the test than most of her peers.
D) Performed at a lower level on the test than most of her peers.
Ques. 7David takes an intelligence test, and gets an IQ score of 85. What is David's approximate percentile rank on this test?
A) 5th percentile
B) 16th percentile
C) 34th percentile
D) 65th percentile
Ques. 8As a third-grade teacher, you receive the standardized test scores for Marie and learn that she has gotten a stanine of 1 on the spelling subtest and a stanine of 3 on the math subtest. You should conclude that Marie:
A) Performed below average among her peers on both subtests.
B) Performed above average among her peers on both subtests.
C) Performed below grade level on the spelling subtest, but at grade level on the math subtest.
D) Had below-average performance on the spelling subtest, but above-average performance on the math subtest.
Ques. 9Todd takes an achievement test that yields standard scores. The mean of the test scores is 200, and the standard deviation is 50. If Todd does better than 84 of the people his age who take the test, his standard score is:
A) 150.
B) 200.
C) 250.
D) 300.
Ques. 10Which one of the following statements most accurately characterizes IQ scores?
A) In the range of scores between 90 and 110, more people get a score of 110 than any other score.
B) If you divide an IQ score by 2, you get a person's percentile rank on the intelligence test from which the score was obtained.
C) The average score is 100, with equal numbers of people getting every score between 70 and 130.
D) The average score is 100, with many people getting scores near 100 and fewer people getting scores farther away.
Ques. 11Approximately how many students will typically get scores within one standard deviation of the mean (either above or below the mean) on a standardized achievement test?
A) About two-thirds of them
B) About one-third of them
C) About 20 of them
D) About half of them
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