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Question
Exhibit 6-1
Using the numbers in Exhibit 6-1, if you want to end up with four bars on your histogram, how many numbers should be in each interval?
Answer
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A test to measure psychotic tendencies was given to a group of 1,000 potential air force cadets who wished to work in nuclear silos. Any cadet who scored at or over 64 would be eliminated. The mean of the test was 52 and the standard deviation was 12. Of the following scores, which is the highest z-score someone could receive and still be accepted to work in the silos?a. 0b. 1.5 c. 2d. 2.5 e. 3
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Which of the following represents the best description of a DIQ?a. z(Mean) + SD (M = 15, SD = 100) b. z(Mean) + SD (M = 100, SD = 15) c. z(SD) + Mean (M = 15, SD = 100) d. z(SD) + Mean (M = 100, SD = 15)
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If you convert a group of z-scores to DIQ's, you will:a. change the distribution on the curve. b. decrease the mean.c. decrease the median.d. keep the original shape of the raw score distribution.
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Exhibit6-2In order to evaluate a graduate program in counseling, a decision is made to compare the scores of the recent graduates on the National Counseling Exam (NCC) to the national norms. Therefore, the program decides to compare its current graduates with the all graduates nationally who took the exam. Their scores of the current graduates are as follows:Refer to Exhibit 6-2. Find the standard deviation.
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Exhibit6-2In order to evaluate a graduate program in counseling, a decision is made to compare the scores of the recent graduates on the National Counseling Exam (NCC) to the national norms. Therefore, the program decides to compare its current graduates with the all graduates nationally who took the exam. Their scores of the current graduates are as follows:Refer to Exhibit 6-2. Find the mean
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Exhibit 6-1Using the numbers in Exhibit 6-1, determine the interquartile range.
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Exhibit 6-1Using the numbers in Exhibit 6-1, determine the range.
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Exhibit 6-1Using the numbers in Exhibit 6-1, determine the median.
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Exhibit 6-1Using the numbers in Exhibit 6-1, draw a frequency distribution using class intervals of 3.
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What is the median of the following groups of scores: 4, 7, 8, 8, 9, 10, 12, and 14?a. 8b. 8.5 c. 9d. 9.5e. None of these
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On a normally distributed curve, which is true?a. The mode is lower than the mean, which is lower than the median. b. The median is lower than the mode, which is lower than the mean. c. The mean is lower than the median, which is lower than the mode. d. The mode is lower than the median, which is lower than the mean. e. The mean, median, and mode are the same.
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The results of a norm group comparison test can do all of the following EXCEPT:
a. tell you the relative position, within the norm group, of a person's score.
b. allow you to compare the results of test takers who took the same test but are in different norm groups.
c. allow you to compare the results of the test to other norm-referenced tests taken by the same individuals.
d. allow you to assess whether or not a particular individual has improved in a specific area being tested using only the results of the one test.
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The test is given to a group of students and then, one day later, they take the same test again.
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A statistical expression of the relationship between sets of scores.
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The Carl Perkins Act (PL 98-524) asserted:a. that any test used for employment or promotion must be shown to be suitable and valid for the job in question. b. that tests used for hiring and advancement at work must show that they can predict job performance for all groups.c. the right of individuals to access their federal records, including test records.d. the right of students to be tested, at a school system's expense, if they are suspected of having a disability that interferes with learning.e. that individuals with disabilities, or who are disadvantaged, have access to vocational assessment, counseling, and placement.
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The Buckley Amendment, otherwise known as FERPA, asserted:
a. that accommodations must be made for individuals who are taking tests for employment and that testing must be shown to be relevant to the job in question.
b. that tests used for hiring and advancement at work must show that they can predict job performance for all groups.
c. the right of all individuals to their school records, including test records.
d. that individuals with disabilities, or who are disadvantaged, have access to vocational assessment, counseling, and placement.
e. the right of students to be tested, at a school system's expense, if they are suspected of having a disability that interferes with learning.