# Measurement and Methodology-Statistical Procedures (GRE Psychology): Questions 9 - 12 of 20

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## Question number: 9

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

Which of the following is NOT true of parametric statistical tests?

### Choices

Choice (4) Response

a.

They are more powerful than non-parametric statistical tests.

b.

They assume that data are normally distributed.

c.

None of the above

d.

They assume comparable variability across treatment groups.

## Question number: 10

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

Five hundred undergraduates were asked to report their favorite television show from a list of 100 different shows. What kind of scale can best organize the data?

### Choices

Choice (4) Response

a.

F-scale

b.

Ratio

c.

Nominal

d.

Interval

## Question number: 11

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

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 (4) Response

a.

Her critical value of t will be more extreme.

b.

Her computed value of t will be larger.

c.

There will be no difference.

d.

Her critical value of t will be less extreme.

## Question number: 12

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

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 (4) Response

a.

2 x 3 factor analysis

b.

2 x 2 x 2 factor analysis

c.

T-test

d.

Chi-square test

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