Measurement and Methodology [GRE (Graduate Record Examinations) Psychology]: Questions 15 - 18 of 135

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Question 15

Question MCQ▾

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

Choices

Choice (5)Response

a.

2

b.

5

c.

3

d.

1

e.

4

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Question 16

Question MCQ▾

In a normal frequency distribution, 34% of the cases

Choices

Choice (5)Response

a.

fall between the mode and the median

b.

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

c.

determine whether the distribution is leptokurtic

d.

lie 1 standard deviation above from mean or 1 standard deviation below the mean

e.

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

Edit

Question 17

Question MCQ▾

A random sample of students in a lecture hall could be obtained by selecting

Choices

Choice (5)Response

a.

the students with blonde hair

b.

the students who raise their hands first

c.

every seventh student who volunteers

d.

the students with credit card numbers ending in 5

e.

every fifth student seated throughout the room

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Question 18

Question MCQ▾

In a frequency polygon, the abscissa

Choices

Choice (5)Response

a.

is leptokurtic when scores are not normally distributed

b.

plots the scores

c.

is almost always normally distributed

d.

plots the percentiles

e.

plots the frequencies

Edit