Measurement and Methodology (GRE (Graduate Record Examinations) Psychology): Questions 12 - 16 of 92

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Question number: 12

» Measurement and Methodology » Statistical Procedures

MCQ▾

Question

Statistics are used in psychological research to ________.

Choices

Choice (5) Response

a.

Prove that the research hypothesis is correct.

b.

Evaluate the likelihood that the experiment caused the differences in behavior across treatment conditions.

c.

Justify the experimenter’s conclusions.

d.

Quantify the dependent variable.

e.

Prove the null hypothesis.

Question number: 13

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

MCQ▾

Question

A behavioral observation checklist requires the observer to note whether the person being observed smiles. A key source of error variance resulting from this requirement is

Choices

Choice (5) Response

a.

all of the above.

b.

content variance.

c.

item sampling variance.

d.

scoring variance.

e.

None of the above

Question number: 14

» Measurement and Methodology » Statistical Procedures

MCQ▾

Question

The amount of variance in scores accounted for by a correlation coefficient of -. 70 is

Choices

Choice (5) Response

a.

almost 50 % if the reliability of the measures is + 1.00

b.

indeterminate because the correlation is negative

c.

less than zero because the correlation is negative

d.

70 % if the reliability of the measures is + 1.00

e.

14 % if the reliability of the measures is greater than. 70

Question number: 15

» Measurement and Methodology » Statistical Procedures

MCQ▾

Question

An IQ of 146 is approximately how many standard deviations from the mean?

Choices

Choice (5) Response

a.

4

b.

1

c.

2

d.

5

e.

3

Question number: 16

» Measurement and Methodology » Statistical Procedures

MCQ▾

Question

In a normal frequency distribution, 32 % of the cases

Choices

Choice (5) Response

a.

fall beyond 1 standard deviation above and 1 standard deviation below the mean

b.

fall beyond 2 standard deviations above and 2 standard deviations below the mean

c.

fall between the mode and the median

d.

determine whether the distribution is leptokurtic

e.

fall between 1 standard deviation above and 1 standard deviation below the mean

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