The size of the correlation between achievement test scores and school grades might be smaller in which population?
a. Gifted 12-year-old students
b. Grades three to five, including children with learning disabilities
c. Nontraditional college students
d. None of these are true.
Ques. 2The size of the correlation between achievement test scores and school grades might be smaller in which population?
a. Gifted 12-year-old students
b. Grades three to five, including children with learning disabilities
c. Nontraditional college students
d. None of these are true.
Ques. 3Which standard score has a mean of 0 and a standard deviation of 1?
a. Percentile
c.
z-score
b.
T-score
d. None of these are true.
Ques. 4A student with a
z-score of 2.5
a. got three-fourths of the answers correct.
b. scored at the 75 percentile.
c. scored in the highest 1 percent of the cases.
d. None of these are true.
Ques. 5Which of the following is an above-average score?
a. 100
c. T = 49
b. z = +1.5
d. z = -2.99
Ques. 6A
T-score of 40 is higher than about what percent of the scores in a distribution?
a. 16 percent
c. 68 percent
b. 50 percent
d. 84 percent
Ques. 7A 100-point math test has a mean of 40 and a standard deviation of 15. A 60-point English test has a mean of 40 and a standard deviation of 5. Pat scored a 50 on both tests.
a. Pat scored better on the English test.
c. Pat scored about the same on both tests.
b. Pat scored better on the math test.
d. None of these are true.
Ques. 8You would find curves rather than right angles in a
a. Polygon.
c. frequency distribution.
b. Histogram.
d. Scatterplot.
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