Measurement and Methodology-Statistical Procedures (GRE 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?

Understanding the properties of this graph

Understanding the Properties of This Graph

What is the importance of understanding this graph?

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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