# Measurement and Methodology-Statistical Procedures [GRE (Graduate Record Examinations) Psychology]: Questions 3 - 6 of 27

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## Question 3

### Question

MCQ▾The amount of variance in scores accounted for by a correlation coefficient of -. 70 is

### Choices

Choice (5) | Response | |
---|---|---|

a. | less than zero because the correlation is negative | |

b. | indeterminate because the correlation is negative | |

c. | 14 % if the reliability of the measures is greater than . 70 | |

d. | almost 50 % if the reliability of the measures is + 1.00 | |

e. | 70 % if the reliability of the measures is + 1.00 |

## Question 4

### 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 5

### Question

MCQ▾In a normal frequency distribution, 32 % 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. | fall between 1 standard deviation above and 1 standard deviation below the mean | |

e. | fall beyond 2 standard deviations above and 2 standard deviations below the mean |

## Question 6

### Question

MCQ▾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. | two perfect scores | |

b. | two scores that were above the mean | |

c. | two scores that correlated perfectly with the test taker՚s aptitude | |

d. | the same score on each test | |

e. | a score equivalent to a z-score of 1 each time |