Chapter 3: Basic Psychometric Principles

Question 1

Many variables are called _____.

Answer 1

Constructs

Question 2

Variables of interest are either ____ or ____ in nature

Answer 2

Continuous

Quantitative

Question 3

What is the goal of the measurement of variables of interest?

Answer 3

assign scores o the units under study often the participant

Question 4

___ refers to the theory and techniques for assessing the adequacy of such quantitative scores.

Answer 4

Psychometrics

Question 5

What are the two terms of the psychometric theory that measures quality?

Answer 5

Reliability and Validity

Question 6

___ Refers to the consistency of scores over replicated assessments.

Answer 6

Reliability

Question 7

____ the extent to which differences in scores reflect actual differences in the characteristic (construct) of interest.

Answer 7

Validity

Question 8

If you were to test a prisoner in a jail on a Tuesday and they test again one week later and the score is the same or similar. This is considered to what type of assessment of reliability?

Answer 8

test-re-test

Question 9

What is a pre-construct of validity?

Answer 9

Reliability or consistency

Question 10

___ the appropriateness of scores derived from a given measurement procedure of intended use (unbiased selection of applicants for occupational or educational activities; testing of theoretical propositions by examining relations among scores representation various constructs of interests.)

Answer 10

Validity

Question 11

How do you address whether a score provides information about underlying constructs?

Answer 11

Validity

Question 12

____ theory proceeds from the assumption that scores derived from psychological assessment procedures are inherently imperfect.

Answer 12

Classical reliability

Question 13

Someone comes in to test and is not feeling their best on a certain day. Maybe they did not perform well on this date or to their best. What is it called when this occurs?

Answer 13

Measurement Error

Question 14

____ is the most commonly reported reliability coefficient.

Answer 14

Chronbach’s coefficient alpha

Question 15

Why is Cronbach’s coefficient alpha the most commonly reported reliability coefficient?

Answer 15

It can and should be computed and reported any time a multi-item scale is administered to a sample of participants.

Question 16

Coefficient alpha is a coefficient of internal consistency reliability referred to as ____.

Answer 16

Coefficient of equivalence

Question 17

___ Variance that is consistent over replicated assessments

Answer 17

true score variance

Question 18

___ is usually. notated as rXX. Quantifies the proportion of variance in scores that is attributable to true scores.

Answer 18

Reliability Coefficient

Question 19

What is a confusing feature of reliability theory?

Besides all of it :-)

Answer 19

Measurement error comes in different types

Question 20

It is normally relevant to report both ___ and ____

Answer 20

coefficients of internal consistency coefficients of stability

Question 21

Reliability is a property of scores, not ____.

Answer 21

measures

Question 22

indicates the proportion of score variance that this attributable to a combination of ___.

Answer 22

specific factor error

Question 23

__ item variance that does not load on the general factor common to all items on the scale.

Answer 23

Random error

Question 24

___ test-retest reliability coefficient.

Answer 24

Coefficient of stability

Question 25

Researchers should be concerned about reliability because ____.

Answer 25

measurement error biases estimates of effect sizes in psychological research.

Question 26

___ computing the correlation between scores on variables x and y.

Answer 26

Observed correlation

Question 27

The observed correlation is always smaller in magnitude than the true correlation is called___.

Answer 27

attenuation

Question 28

True or False: A very reliable measure may still have poor validity.

Answer 28

True

Question 29

___ is much more difficult to summarize succinctly.

Answer 29

Validity evidence

Question 30

Reliability is a property of the scores on a test for a particular population of ____.

Answer 30

examinees

Question 31

A coffee cup in an assessment. Someone may normally view an error with the image such as needing a saucer.

Answer 31

Test bias