# Measurement and Methodology-Statistical Procedures (GRE (Graduate Record Examinations) Psychology): Questions 13 - 16 of 20

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## Question number: 13

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

Which of the following best describes the graph above?

### Choices

Choice (4) Response

a.

Frequency polygon

b.

Negatively skewed distribution

c.

Histogram

d.

Normal distribution

## Question number: 14

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

Which of the following is NOT true of the Chi Square statistic?

### Choices

Choice (4) Response

a.

It should be used with nominal data.

b.

It is a parametric test.

c.

It is based on expected frequencies.

d.

It does not assume that the variance between two groups is equal.

## Question number: 15

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

The members of a sample who deviate from the mean by a standard deviation expressed as a Z-score of 3 represent

### Choices

Choice (4) Response

a.

members of the sample who are most likely to appear six times more frequently than other members of the sample

b.

the most frequent two-thirds of the sample

c.

the most frequent third of the sample

d.

outliers

## Question number: 16

» Measurement and Methodology » Statistical Procedures

MCQ▾

### Question

A normal distribution of 2000 scores has a mean of 150 and a standard deviation of 6. Jenny received a 162. Each of the following is true of her score EXCEPT

### Choices

Choice (4) Response

a.

her score is equivalent to a z-score of + 2

b.

approximately 48 % of the total scores lie between her score and the mean

c.

approximately 68 % of student scored lower than she did

d.

her percentile rank is approximately the 98th percentile

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