# Research Methods and Statistics [GATE (Graduate Aptitude Test in Engineering) Psychology]: Questions 283 - 284 of 320

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## Question 283

Appeared in Year: *2021*

### Question

MCQ▾In a one-way analysis of variance following statements is true: (marks 1)

### Choices

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

a. | If there is no treatment effect, F value will be close to 1 in most samples | |

b. | Total sum of squares (Within sum of squares Between sum of squares) | |

c. | F ratio is defined as ratio of between group variance and within group variance | |

d. | All a., c. and b. are correct |

## Question 284

Appeared in Year: *2021*

### Question

MCQ▾A study is conducted to see the effectiveness of volume levels of commercials. In the graph given below, values of mean effectiveness (dependent variable) are presented on the Y axis, and three levels of volume, namely, soft, medium and loud are presented on the X axis. The graph shows the relationship between volume and mean effectiveness for males in the continuous line and for females in the dashed line. Which of the following interpretation (s) is/are correct from the graph?

### Choices

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

a. | A linear relationship exists for males and a nonlinear relationship for females. | |

b. | The effect of increasing volume on effectiveness depends on whether the participant is a male or a female. | |

c. | A linear relationship exists for both males and females. | |

d. | Both a. and b. are correct |