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Test items with little discriminative ability prompt the test developer to consider the possibility that


A) the content of the item does not match the construct measured by the other items in the scale.
B) the item is poorly worded and needs to be rewritten.
C) the item is too complex for the educational level of the population.
D) All of these

E) A) and D)
F) A) and C)

Correct Answer

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Which of the following is generally the preferred statistic for obtaining a measure of internal-consistency reliability?


A) KR-20
B) KR-21
C) Kendall's Tau
D) coefficient alpha

E) A) and D)
F) A) and C)

Correct Answer

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Classical reliability theory estimates the portion of a test score that is attributed to ________,and domain sampling theory estimates ________.


A) specific sources of variation; error
B) error; specific sources of variation
C) the skills being measured; variation
D) the skills being measured; content knowledge

E) A) and C)
F) A) and D)

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The term test heterogeneity BEST refers to the extent to which test items measure


A) different factors.
B) the same factor.
C) a unifactorial trait.
D) a nonhomogeneous trait.

E) C) and D)
F) B) and D)

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A Wall Street Securities firm that is actually located on Wall Street is testing a group of candidates for their aptitude in finance and business.As the testing begins,an unexpected "Occupy Wall Street" sit-in takes place.From a psychometric perspective in the context of this testing,the sit-in is viewed as


A) systematic error.
B) random error.
C) test administration error.
D) background error.

E) B) and D)
F) A) and B)

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Which is TRUE of measurement error?


A) Like error in general, measurement error may be random or systematic.
B) Unlike error in general, measurement error may be random or systematic.
C) Measurement error is always random.
D) Measurement error is always systematic.

E) B) and C)
F) B) and D)

Correct Answer

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Because of the unique problems in assessing very young children,which of the following would be the BEST practice when attempting to estimate the reliability of tests designed to measure cognitive and motor abilities in infants?


A) Use relatively short test-retest intervals.
B) Use relatively long test-retest intervals.
C) Do not use the test-retest method for estimating reliability of the test.
D) Use only inter-scorer reliability estimates.

E) A) and B)
F) B) and C)

Correct Answer

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Which would NOT be useful in estimating a test's inter-item consistency?


A) Cronbach's alpha
B) the Kuder-Richardson formulas
C) the average proportional distance
D) a coefficient of equivalence

E) B) and C)
F) A) and C)

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In an IRT information curve,the term information magnitude may BEST be understood as referring to


A) theta.
B) the range of the underlying construct.
C) precision.
D) difficulty.

E) A) and B)
F) A) and D)

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Which of the following types of reliability estimates is the most expensive due to the costs involved in test development?


A) test-retest
B) parallel-form
C) internal-consistency
D) Spearman's rho

E) A) and D)
F) None of the above

Correct Answer

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The probabilistic relationship between a testtaker's response to a test item and that testtaker's level on the latent construct being measured by the test is expressed in graphic form by


A) an item characteristic curve.
B) an item response curve.
C) an item trace line.
D) All of these

E) None of the above
F) A) and B)

Correct Answer

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A test entails behavioral observation and rating of front desk clerks to determine whether or not they greet guests with a smile.Which type of error is this test most susceptible to?


A) test administration error
B) test construction error
C) examiner-related error
D) polling error

E) A) and D)
F) B) and D)

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Which BEST conveys the meaning of an inter-scorer reliability estimate of .90?


A) Ninety percent of the scores obtained are reliable.
B) Ninety percent of the variance in the scores assigned by the scorers was attributed to true differences and 10% to error.
C) Ten percent of the variance in the scores assigned by the scorers was attributed to true differences and 90% to error.
D) Ten percent of the test's items are in need of revision according to the majority of the test's users.

E) None of the above
F) A) and D)

Correct Answer

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KR-20 is the statistic of choice for tests with which types of items?


A) multiple-choice
B) true-false
C) All of these
D) None of these

E) A) and B)
F) A) and C)

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Which of the following is NOT an assumption attendant to the use of IRT?


A) the assumption of unidimensionality
B) the assumption of heteroskedacity
C) the assumption of local independence
D) the assumption of monotonicity

E) A) and D)
F) A) and C)

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This variety of error has also been referred to as "noise." It is


A) systematic error.
B) random error.
C) measurement error.
D) background error.

E) A) and B)
F) B) and C)

Correct Answer

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Which is the BEST example of a dynamic characteristic?


A) the stress level of a trapeze flyer at a circus
B) the intelligence of a college student during Spring Break
C) the anti-authority attitude of an inmate serving a life term
D) None of these

E) None of the above
F) A) and C)

Correct Answer

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"Coefficient alpha 20" is a reference to


A) a variant of the Kuder-Richardson KR-20 formula.
B) the 20th in a series of formulas developed by Cronbach.
C) a 20th-century revision of a Galtonian expression.
D) None of these

E) A) and B)
F) All of the above

Correct Answer

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Which of the following factors may influence a split-half reliability estimate?


A) fatigue
B) anxiety
C) item difficulty
D) All of these

E) C) and D)
F) All of the above

Correct Answer

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Different types of reliability coefficients


A) all reflect the same sources of error variance.
B) may reflect different sources of error variance.
C) never reflect the same source of error variance.
D) reflect on error variance during leisure activities.

E) All of the above
F) B) and C)

Correct Answer

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