# Research Methods and Statistics [GATE (Graduate Aptitude Test in Engineering) Psychology]: Questions 187 - 190 of 320

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## Question 187

### Question

MCQ▾The first step in Friedman test is to:

### Choices

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

a. | Determine the level of significance | |

b. | Calculate the test statistics | |

c. | Formulate and test the null hypothesis | |

d. | Question does not provide sufficient data or is vague |

## Question 188

### Question

Assertion-Reason▾### Assertion(Ꭺ)

Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R) . Indicate your answer using the code given below:

Value of power analysis ranges from zero to one

### Reason(Ꭱ)

The value of power analysis increases the probability of wrongly failing to reject the null hypothesis decreases.

### Choices

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

a. | Both Ꭺ and Ꭱ are false | |

b. | Ꭺ is false but Ꭱ is true | |

c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |

d. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ |

## Question 189

### Question

MCQ▾Which of the following statement is true about Kruskal-Wallis test?

i. Kruskal-Wallis test is a one-way anova ranks.

ii. It was developed by William Kruskal and W. Allen Wallis.

iii. It is a non-parametric test

### Choices

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

a. | i and iii | |

b. | i and ii | |

c. | ii and iii | |

d. | i, ii and iii |

## Question 190

### Question

MCQ▾The term effect size can refer to:

i. The value of a statistic calculated from a sample of data

ii. The value of a parameter of a hypothetical statistical population

iii. The equation that operationalizes how statistics or parameters lead to the effect size value.

### Choices

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

a. | i and ii | |

b. | i, ii and iii | |

c. | ii and iii | |

d. | i and iii |