Measurement and Methodology [GRE (Graduate Record Examinations) Psychology]: Questions 15 - 18 of 135
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Question 15
Question MCQ▾
An IQ of 146 is approximately how many standard deviations from the mean?
Choices
Choice (5) | Response | |
---|---|---|
a. | 2 | |
b. | 5 | |
c. | 3 | |
d. | 1 | |
e. | 4 |
Question 16
Question MCQ▾
In a normal frequency distribution, 34% of the cases
Choices
Choice (5) | Response | |
---|---|---|
a. | fall between the mode and the median | |
b. | fall beyond 1 standard deviation above and 1 standard deviation below the mean | |
c. | determine whether the distribution is leptokurtic | |
d. | lie 1 standard deviation above from mean or 1 standard deviation below the mean | |
e. | fall beyond 2 standard deviations above and 2 standard deviations below the mean |
Question 17
Question MCQ▾
A random sample of students in a lecture hall could be obtained by selecting
Choices
Choice (5) | Response | |
---|---|---|
a. | the students with blonde hair | |
b. | the students who raise their hands first | |
c. | every seventh student who volunteers | |
d. | the students with credit card numbers ending in 5 | |
e. | every fifth student seated throughout the room |
Question 18
Question MCQ▾
In a frequency polygon, the abscissa
Choices
Choice (5) | Response | |
---|---|---|
a. | is leptokurtic when scores are not normally distributed | |
b. | plots the scores | |
c. | is almost always normally distributed | |
d. | plots the percentiles | |
e. | plots the frequencies |