False correct answers A group of graduate students studying psychology take a national comprehensive exam. On the test, their mean score is about 0.5 standard deviation above the mean as compared to the national score. The variability of their scores is less than the national mean. If passing is 1 ...
HSR Unit 2 Exam || with 100% Verified Solutions.
False correct answers A group of graduate students studying psychology take a national
comprehensive exam. On the test, their mean score is about 0.5 standard deviation above the
mean as compared to the national score. The variability of their scores is less than the national
mean. If passing is 1 standard deviation below the mean, it is likely that many have failed (T/F)
False correct answers A histogram is the preferred method over the cumulative distribution for
conveying information about the percentile rank. (T/F)
False correct answers Approximately 2 percent of people do lower than 3 standard deviations
below the mean. (T/F)
True correct answers Approximately 84 percent of people do higher than 1 standard deviation
below the mean. (T/F)
True correct answers Histograms and frequency polygons are visual representations of frequency
distributions. (T/F)
True correct answers If an individual takes a test, and if you know an individual's raw score, the
mean of the group of individuals who took the test, and the standard deviation of the group, you
can tell the relative position of the individual within his or her group. (T/F)
True correct answers Measures of central tendency tell you something about the middle of a
series of numbers but hardly anything about the variability of a set of numbers. (T/F)
True correct answers On all normally distributed curves, the mean, median, and mode are the
same. (T/F)
2. The mean is lower than the median, which is lower than the mode. correct answers On a
negatively skewed curve, which of the following is true?
1. The mean is lower than the mode, which is lower than the median.
2. The mean is lower than the median, which is lower than the mode.
3. The mode is lower than the mean, which is lower than the median.
4. The median is lower than the mode, which is lower than the mean.
5. The mean, median, and mode is the same.
The mean, median, and mode are the same. correct answers On a normally distributed curve,
which is true?
D. The mode is lower than the median, which is lower than the mean. correct answers On a
positively skewed 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.
True correct answers On negatively skewed curves, the mean is lower than the median, which is
lower than the mode. (T/F)
4. 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. correct answers The results of a norm group
comparison test can do all of the following EXCEPT:
1. tell you the relative position, within the norm group, of a person's score.
2. allow you to compare the results of test takers who took the same test but are in different norm
groups.
3. allow you to compare the results of the test to other norm-referenced tests taken by the same
individuals.
4. 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.
4. Cumulative distribution (ogive curve) correct answers Which of the following is the best
method for determining the percentile rank regarding a group of scores?
1. Frequency distribution
2. Histogram
3. Frequency polygon
4. Cumulative distribution (ogive curve)
These tests have modest predictive validity, students are directly compared on the same standard
or set of tasks, and the test typically measure general scholastic abilities that cut across multiple
majors or areas of study. correct answers Describe the three benefits of using aptitude tests for
admission decisions
Unlike test like the ACT that measure scholastic aptitude, these inventories focus more on "real
world" abilities. correct answers How do general aptitude tests typically differ aptitude tests used
for college admissions?
Aptitude tests forecast future performance and achievement assess what an examinee has already
learned as a result of education or other training experiences. correct answers Contrast aptitude
and achievement tests.
True correct answers Age comparisons allow a person to compare his or her score at a specific
age to the mean and standard deviation of individuals in his or her age peer group. (T/F)
A. 4.7 ± .18 correct answers An individual being tested for a gifted program scores a 132 on the
Cognitive Ability Test (CogAT), which has a mean of 100 and a standard deviation of 16. There
is a .40 correlation between the CogAT score and success as measured by GPA in the gifted
, program, which has a weighted mean of 4.3 with a SD of .2. Use the Standard Error of the
Estimate (SEest) to predict where this students GPA will fall 68 percent of the time.
A. 4.7 ± .18
B. 4.3 ± .2
C. 4.5 ± .4
D. 4.7 ± .15
E. None of these
A. 4.7 ± .36 correct answers An individual being tested for a gifted program scores a 132 on the
Cognitive Ability Test (CogAT), which has a mean of 100 and a standard deviation of 16. There
is a .40 correlation between the CogAT score and success as measured by GPA in the gifted
program, which has a weighted mean of 4.3 with a SD of .2. Use the Standard Error of the
Estimate (SEest) to predict where this students GPA will fall 95 percent of the time.
A. 4.7 ± .36
B. 4.3 ± .4
C. 4.5 ± .8
D. 4.7 ± .28
E. None of these
3. 70 - 76 correct answers An individual receives a DIQ score of 73. Taking into account
standard error of measurement (SEM), what is his "true score" 68 percent of the time if test-retest
reliability is .96?
1. 61 - 85
2. 67 - 79
3. 70 - 76
4. 71.5 - 74.5
5. None of these
2. 6 points correct answers An individual receives a DIQ score of 73. Taking into account
standard error of measurement (SEM), what is his "true score" 95 percent of the time if test-retest
reliability is .96?
1. 12 points
2. 6 points
3. 3 points
4. 1.5 points
5. None of these
4. Bethany: 98; Edwina: 16 correct answers A personality test that measures self-actualizing
values uses T-scores. On the "self-awareness" scale, Bethany receives a score of 70 while
Edwina obtains a score of 40. At approximately which percentiles do these scores fall?
1. Bethany: 98; Edwina: 34
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