# Measurement and Methodology-Statistical Procedures (GRE Psychology): Questions 4 - 8 of 20

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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 (4) | Response | |
---|---|---|

a. | 5 | |

b. | 3 | |

c. | 2 | |

d. | 4 |

## Question number: 5

» Measurement and Methodology » Statistical Procedures

### Question

In a normal frequency distribution, 32 % of the cases

### Choices

Choice (4) | Response | |
---|---|---|

a. | fall between 1 standard deviation above and 1 standard deviation below the mean | |

b. | fall beyond 1 standard deviation above and 1 standard deviation below the mean | |

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

d. | fall between the mode and the median |

## 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 (4) | Response | |
---|---|---|

a. | the same score on each test | |

b. | two scores that correlated perfectly with the test taker’s aptitude | |

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

d. | two perfect scores |

## Question number: 7

» Measurement and Methodology » Statistical Procedures

### Question

The test statistic t is used to ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | Describe treatment means. | |

b. | Evaluate ordinal or nominal data from a two-group experiment. | |

c. | Evaluate interval or ratio data from a two-group experiment. | |

d. | Evaluate interaction effects in factorial experiments. |

## Question number: 8

» Measurement and Methodology » Statistical Procedures

### Question

* The term * zero-order correlation coefficient refers to a correlation

### Choices

Choice (4) | Response | |
---|---|---|

a. | between two variables | |

b. | that has yet to be tested | |

c. | that is close to 0.00 | |

d. | that does not achieve statistical significance |