# Measurement and Methodology-Statistical Procedures [GRE (Graduate Record Examinations) Psychology]: Questions 11 - 13 of 27

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## Question 11

### Question

MCQ▾Mary is using a one-tailed test to evaluate the results of her experiment. Compared with what would happen if she used a two-tailed test, ________.

### Choices

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

a. | Her critical value of t will be more extreme. | |

b. | There will be no difference. | |

c. | Her critical value of t will be less extreme. | |

d. | Her computed value of t will be larger. | |

e. | Her significance level must be more extreme. |

## Question 12

### Question

MCQ▾Which of the following statistical tests should the researcher use to analyze her data?

A researcher wants to consider the effects of preparation on standardized test scores. She plans to compare the GRE scores of students who did and did not take a preparation course for the GRE. She also plans to compare the GRE scores of students who took preparation courses though Company X, Company Y, and Company Z.

### Choices

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

a. | 2 × 3 factor analysis | |

b. | Person՚s | |

c. | T-test | |

d. | Chi-square test | |

e. | 2 × 2 × 2 factor analysis |

## Question 13

### Question

MCQ▾Which of the following best describes the graph above?

### Choices

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

a. | Histogram | |

b. | Normal distribution | |

c. | Frequency polygon | |

d. | Positively skewed distribution | |

e. | Negatively skewed distribution |