CH. 7 T/F
A selection measure is internally consistent or homogeneous when individuals' responses on one part of the measure are unrelated to their responses on other parts.
false
A split-half reliability overestimates actual reliability. Therefore, a special formula, the Spearman-Brown prophecy formula, is used to make the correction.
false
If all respondents on a selection measure remember their previous answers to an initial administration of a measure and then on the retest respond according to their memory, the reliability coefficient will decrease.
false
In general, the amount of measurement error has little effect on how high the reliability of measurement error will be.
false
Interrater agreement indices are generally restricted to interval or ratio data.
false
Kuder-Richardson reliability procedures are rarely used
false
Selection measures involving traits of personality, attitudes, or interests are usually considered to be fairly static yielding high reliability coefficients.
false
Selection measures that are designed to assess job-related characteristics are more precise than measures of physical characteristics.
false
Split-half reliability procedures tend to produce a conservative estimate of reliability.
false
Surprisingly, increasing the lengths of time between administrations does not reduce the impact of memory effects on reliability.
false
Tests with many items that are very difficult are more reliable than tests containing many items of moderate difficulty.
false
The standard error of measurement is another approach for estimating reliability.
false
Generally speaking, the greater the variability or standard deviation of scores on the characteristic measured, the higher the reliability of the measure of that characteristic
true
The higher the value of a reliability coefficient, the less the measurement error.
true
Unreliable performance by a respondent on a reliable measure is possible, but reliable performance on an unreliable measure is impossible.
true
With a long time interval between administrations of a measure, test-retest reliability may underestimate reliability.
true
With increasing time intervals, test-retest reliability coefficients will generally decrease.
true
A good rule of thumb is that reliability must be .90 or higher.
false
Because of the way it is calculated, a higher reliability coefficient is desirable.
true
A split-half reliability estimate is NOT a pure measure of internal consistency
true
To control the effects of memory on test-retest reliability estimates, the same measure should be used the second time.
false
Reliability of measurement in selection is synonymous with dependability, consistency, or stability of measurement.
true
Selection measures are not simply "reliable" or "not reliable," there are degrees of reliability.
true
The higher the test-retest reliability coefficient, the greater the true score and the less the error.
true
When a measure is perfectly reliable, its obtained score is higher than its true score.
true
The standard error of measurement is affected by variability within the group of respondents to whom a measure has been administered.
false
To achieve a parallel forms reliability estimate, at least two equal versions of a measure must exist.
false
Although interrater agreement indices have their limitations, they are still widely used in selection research.
true
As the number of response options or categories on a measure increases, reliability also increases.
true
Error score represents errors of measurement.
true
If coefficient alpha reliability is unacceptably low, then the items on the selection measure may be assessing more than one characteristic.
true
If our standard error is 3.16 and the difference between two applicants' scores is 3, then it is possible that the difference in scores is due to chance
true
If variability or individual differences increase among respondents while variation within individuals remains the same, reliability will increase.
true
In general, as the length of a measure decreases, its reliability increases
true
In the context of personnel selection, the reliability of criterion measures need not be as high as predictor measures.
true
Interrater reliability estimates test the hypothesis that ratings are determined by characteristics of the rater rather than by what is being rated.
true
Kuder-Richardson reliability estimates are usually lower than those obtained from split-half estimates.
true
Reliability coefficients computed between parallel forms tend to be conservative estimates.
true
Reliability is a group-based statistic.
true
Reliability is a necessary but not sufficient condition for validity.
true
Reliability is generally determined by examining the relationship between two sets of measures measuring the same thing.
true