Which of the following subtests measures short-term and auditory memory?
a. digit span
b. block design
c. digit symbol
d. picture completion
Standard errors of measurement are used to
a. determine whether an observed score is the true score.
b. determine the standard deviation of the scores.
c. calculate the exact true score.
d. create confidence intervals around specific observed test scores.
Which WAIS-IV subtest provides one of the most stable and least deteriorating aspects of intelligence?
a. information
b. comprehension
c. similarities
d. vocabulary
The standard error of measurement allows us to
a. estimate the degree to which a test provides inaccurate readings.
b. have an acceptable margin of error.
c. determine the source of error.
d. avoid any measurement error.
Which WAIS-IV subtest is likely to reveal the character of a person's thought processes?
a. information
b. comprehension
c. similarities
d. arithmetic
Approximately what value must a reliability coefficient have for most purposes in basic research?
a. .90
b. .50
c. .70
d. .30
In which WAIS-IV subtest would an emotional disturbance be likely to interfere with the subject's response?
a. information
b. comprehension
c. similarities
d. vocabulary
If the same test, given at different points in time to the same test takers, yields different scores, then the method typically used to assess this source of error is
a. test-retest.
b. alternate forms/parallel forms.
c. split-half.
d. KR 20.
Which of the following is not one of the WAIS-IV verbal scales?
a. digit symbol-coding
b. information
c. similarities
d. digit-span
Items are probably measuring the same thing when the correlation between an item and the total score
a. is high.
b. is low.
c. approaches 0.
d. is negative.
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