Measurement and Methodology-Statistical Procedures (GRE (Graduate Record Examinations) Psychology): Questions 4 - 7 of 21
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Question number: 4
» Measurement and Methodology » Statistical Procedures
Question
An IQ of 146 is approximately how many standard deviations from the mean?
Choices
| Choice (5) | Response | |
|---|---|---|
| a. | 4 |
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| b. | 1 |
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| c. | 2 |
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| d. | 5 |
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| e. | 3 |
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Question number: 5
» Measurement and Methodology » Statistical Procedures
Question
In a normal frequency distribution, 32 % of the cases
Choices
| Choice (5) | Response | |
|---|---|---|
| a. | fall beyond 1 standard deviation above and 1 standard deviation below the mean |
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| b. | fall beyond 2 standard deviations above and 2 standard deviations below the mean |
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| c. | fall between the mode and the median |
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| d. | determine whether the distribution is leptokurtic |
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| e. | fall between 1 standard deviation above and 1 standard deviation below the mean |
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Question number: 6
» Measurement and Methodology » Statistical Procedures
Question
If the GRE Psychology Subject Test had a standard error of zero, then a test taker that took the test two times would necessarily receive
Choices
| Choice (5) | Response | |
|---|---|---|
| a. | the same score on each test |
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| b. | two scores that correlated perfectly with the test taker’s aptitude |
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| c. | two perfect scores |
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| d. | a score equivalent to a z-score of 1 each time |
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| e. | two scores that were above the mean |
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Question number: 7
» Measurement and Methodology » Statistical Procedures
Question
The test statistic t is used to ________.
Choices
| Choice (5) | Response | |
|---|---|---|
| a. | Analyze interval or ratio data from an experiment with two or more groups. |
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| b. | Evaluate interaction effects in factorial experiments. |
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| c. | Describe treatment means. |
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| d. | Evaluate interval or ratio data from a two-group experiment. |
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| e. | Evaluate ordinal or nominal data from a two-group experiment. |
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