Multiple Choice Quiz

Choose the best answer to each question based on material presented in Psychological Testing and Assessment, 5th Edition by Ronald Cohen and Mark Swerdlik. These questions only sample material from the chapter; there is much more to know than sampled here.

1		In the language of psychometrics, reliability refers primarily to
			A)	expertise in measurement.
			B)	dependability in measurement.
			C)	speed of measurement.
			D)	consistency in measurement.
2		With regard to test reliability,
			A)	there are different types of reliability.
			B)	it is seldom an all-or-none matter.
			C)	tests are reliable to different degrees.
			D)	all of the above.
3		A reliability coefficient is an index of reliability that reflects the ratio between
			A)	the error variance and the error variance squared.
			B)	the true score variance on a test and the total variance.
			C)	the true score variance on a test and the error variance squared.
			D)	the true score variance and the error variance.
4		In the context of psychometrics, error refers to the component of the observed score on an ability test that
			A)	does not have to with the ability being measured.
			B)	was distorted as a result of examiner error.
			C)	may have been measured inaccurately for whatever reason.
			D)	was administered solely for experimental reasons.
5		According to the true score theory, an individual's score on a test of extraversion reflects a level of extraversion as defined by the test and that level is presumed to be
			A)	the testtaker's "true" level of extraversion.
			B)	only an estimate of the testtaker's true level of extraversion.
			C)	greater than the degree of error inherent in the score.
			D)	less than or equal to the degree of error inherent in the score.
6		Which is a source of error variance?
			A)	Test construction.
			B)	Test administration.
			C)	Test scoring.
			D)	All of the above.
7		Item sampling is a source of error variance within the context of
			A)	test construction.
			B)	test administration.
			C)	test scoring.
			D)	all of the above.
8		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
			A)	content variance.
			B)	scoring variance.
			C)	item sampling variance.
			D)	all of the above.
9		It has been said that a so-called true score is "not the ultimate fact in the book of the recording angel." This means that
			A)	subjectivity in scoring may lead to chance variations in examination scores.
			B)	factors due to luck, for lack of another word, must always be considered.
			C)	test variance due to true variance as opposed to error may never be known.
			D)	religion as a cultural variable has not been given sufficient consideration.
10		Which is NOT a form of reliability?
			A)	Test-retest reliability.
			B)	Past-present reliability.
			C)	Split-half reliability.
			D)	Alternate-forms reliability.
11		It is most appropriate to use the Spearman-Brown formula to estimate what form of reliability?
			A)	Test-retest reliability.
			B)	Past-present reliability.
			C)	Split-half reliability.
			D)	Alternate-forms reliability.
12		In general, as test length increases, test reliability
			A)	increases.
			B)	decreases.
			C)	is not affected either way.
			D)	is affected but insignificantly.
13		The degree of correlation among all of the items on a scale
			A)	is referred to as inter-item consistency.
			B)	may be estimated by means of KR-20.
			C)	may be estimated by means of the Rulon formula.
			D)	all of the above.
14		Coefficient alpha is conceptually
			A)	the variance of all possible sources of error variance.
			B)	the mean of all possible split-half correlations.
			C)	the standard deviation of all possible sources of variation.
			D)	the estimate of inter-scorer reliability that is most robust.
15		The difference between a speed test and a power test has to do with
			A)	whether or not the range has been restricted.
			B)	the time limit allotted for completion of the items.
			C)	whether or not the variance has been restricted
			D)	all of the above.