Psychology Questions
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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.
A coefficient alpha over .9 may indicate that:a. the items in the test are too dissimilar.b. the test is not reliable.c. the items in the test are redundant.d. the test is biased against low-ability individuals.
When you are interested in the long-term stability of a measure, you should use the ______ method for estimating reliability.a) test-retestb) alternate formsc) split-halfd) internal consistency
Which one of the following is important for both interpreting individual test scores and calculating confidence intervals?•Standard error of measurement•Pearson product-moment correlation•Test Variance•Spearman-Brown formula
John received a z score of 0.5 on an exam. Peter received a T score of 60 on that same exam. What can be said about their relative performance on the exam?a. There is not enough information to compare John's and Peter's exam scores.b. Peter received a higher raw score than John on the exam.c. John received a higher raw score than Peter on the exam.d. The two test-takers actually received the same score on the exam.
A testing company has developed two versions of a math placement test. They want to investigate the extent to which students' scores are similar across the test tests. What type of reliability coefficient is most appropriate in this situation? How to collect the data?
What evidence exists for a writing test that requires a test taker to perform a representative sample of writing activities (for example, writing a poem, writing an essay, writing a term paper)?a. Validity based on the test's relationship with a constructb. Validity based on the test's relationship with a criterionc. Validity based on the test's contentd. Face validity
Which type of test would yield a higher value for internal consistency: scores from a very easy achievement test of scores from a test of medium difficulty?
From which type of test administered to members of the general population would you LEAST expect the resulting data to be distributed normally?a. A test to measure the strength of one's hand gripb. A test to measure general intelligence and fund of knowledgec. A test to measure knowledge of psychometric principlesd. A test to measure self-esteem
The trait-irrelevant variability that can enter into test scores as a result of fortuitous factors related to the content of specific items included in the test is called.....?•Which type of test is prone to this error source?
Evidence of validity based on a test's content is easiest for tests such as mathematical achievement tests that measure _______ attributes and more difficult for tests such as personality tests that measure _______ attributes.a. abstract; concreteb. concrete; abstractc. nonspecific; specificd. specific; nonspecific
Which one of the following formulas do test developers who wish to increase the reliability of a test use to estimate how many homogeneous test questions should be added to a test to raise its reliability to the desired level?Coefficient alphaKR-20Spearman-BrownPearson product-moment correlation
Error that may enter into scores whenever the element of subjectivity plays a part in scoring a test is called...?•Appropriate measure used to estimate error?
If the mean of a distribution is 7 and the standard deviation is 2, what is the z score that is equivalent to a raw score of 3?a. 2b. -2c. 3d. 6
Researchers administered the Personality Assessment Inventory (PAI) to two samples of individuals. First, they administered the PAI twice to 75 adults, with the second administration following the first by an average of 24 days. They also administered the PAI to 80 college students who took the test twice, with an interval of 28 days. In each case, the researchers were conducting studies to measure the PAI's-internal consistency (1 sample)-score reliability-split-half reliability-test-retest reliability
As a rule, adding more questions that measure the same trait or attribute can _______ a test's reliability.-increase-decrease-overestimate-underestimate
What type of evidence of validity exists if a test developer finds that the scores on a new test of mathematical achievement correlate with the scores on another test of mathematical achievement?a. Validity based on the test's relationship with a criterionb. Validity based on the test's relationship with a constructc. Validity based on the test's contentd. Face validity
When we talk about how each inch on a yardstick is the same length, we are talking about the yardstick's-reliability/precision.-internal consistency.-order effects-score reliability.
When using the split-half method, an adjustment must be made to compensate for splitting the test into halves. Which one of the following would we use to make this adjustment?-Coefficient alpha-Pearson product-moment correlation-Spearman-Brown formula-KR-20
Researchers conducted two studies on the reliability of the Wisconsin Card Sorting Test (WCST) using adult psychiatric inpatients. In these studies, more than one person scored the WCST independently. What kind of reliability/precision were the researchers interested in establishing?-Test-retest reliability-Scorer reliability-Split-half reliability-Internal consistency