A criminologist developed a test to measure recidivism, where low scores indicated a lower probability of repeating the undesirable behavior. The test is normed so that it has a mean of 140 and a standard deviation of 40.

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Question 4

2 Points

What is the percentile rank of a score of 172?

78.81^st percentile

80^th percentile

40^th percentile

28.81^th percentile

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Question 5

2 Points

What is the z-score for a test score of 200?

-1.50

0.5

1

1.50

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Question 6

2 Points

What percentage of scores falls between 100 and 160?

28.81%

53.28%

19.15%

34.13%

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Question 7

2 Points

What proportion of respondents should score above 190?

0.5

1

1.50

1.25

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Question 8

1.5 Points

Suppose an individual is in the 67th percentile in this test. What is his or her corresponding recidivism score?

155.9

140

157.6

112.9