Measurement and Methodology (GRE Psychology): Questions 1 - 4 of 88

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Question number: 1

» Measurement and Methodology » Psychometrics, Test Construction, Reliability, Validity

MCQ▾

Question

Which of the following was NOT given by your text as a key question to ask in order to select an appropriate statistical test?

Choices

Choice (4) Response

a.

Is the experiment within or between subjects?

b.

None of the above

c.

How many independent variables are there?

d.

What is the level of measurement of the dependent variable?

Question number: 2

» Measurement and Methodology » Psychometrics, Test Construction, Reliability, Validity

MCQ▾

Question

Item sampling is a source of error variance within the context of

Choices

Choice (4) Response

a.

test scoring.

b.

test administration.

c.

test construction.

d.

all of the above.

Question number: 3

» Measurement and Methodology » Psychometrics, Test Construction, Reliability, Validity

MCQ▾

Question

Variability produced by random errors, subject variables, and treatment effects is called ________.

Choices

Choice (4) Response

a.

The F ratio.

b.

Error variance.

c.

Between-groups variance.

d.

Random variance.

Question number: 4

» Measurement and Methodology » Statistical Procedures

MCQ▾

Question

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.

The researchers found that students who took a preparation course with Companies X and Y scored higher on the GRE than students who did not prepare. But students who took a preparation course with Company Z scored no higher on average than students who did not take a preparation course. These results are an example of

Choices

Choice (4) Response

a.

a zero correlation

b.

an interaction effect

c.

a flat effect

d.

a main effect

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