Chapter 6: Evaluating Selection Techniques and Decision
Reliability refers to the consistency and stability of a selection measure over time. A reliable test yields similar results under consistent conditions and is free from random errors, making it a dependable tool for evaluating candidates.
the extent to which a score from a selection measure is stable and free from error
reliability
Key Terms
the extent to which a score from a selection measure is stable and free from error
reliability
four ways to determine test reliability
Test- Retest Reliability
Alternate-forms Reliability
Internal reliability
scorer reliability
test- retest reliability
the extent to which repeated administration of the same test will achieve similar results
the consistency of test scores across time
temporal stability
bonus: the amount of anxiety an individual normally has all the time
trait anxiety
Bonus: anxiety has at any given moment
state anxiety
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| Term | Definition |
|---|---|
the extent to which a score from a selection measure is stable and free from error | reliability |
four ways to determine test reliability | Test- Retest Reliability Alternate-forms Reliability Internal reliability scorer reliability |
test- retest reliability | the extent to which repeated administration of the same test will achieve similar results |
the consistency of test scores across time | temporal stability |
bonus: the amount of anxiety an individual normally has all the time | trait anxiety |
Bonus: anxiety has at any given moment | state anxiety |
method of reliability in which two forms (Form A and Form B) of the same test are constructed, half of the sample receive form A and there other half receive form b | Alternate-Forms reliability |
the extent to which two forms of the test are similar | form stability |
the average correlation between alternate form of test used in the industry | .89 |
the extent to which the responses to the tests items are consistent | item stability |
the extent to which test items measure the same construct | item homogeneity |
the statistic used to determine the reliability of the tests that use items with dichotomous answers | Kuder- Richardson 20 |
a form of reliability in which the consistency of item responses is determined by comparing scores on half of the items with scores on the other half | split-half method |
a statistic used to determine internal reliability of tests that use interval or ratio scales | coefficient alpha |
the extent to which scorers agree on the test score, or the test is scored correctly | scorer reliability |
the degree to which inferences from the test scores are justified by the evidence | validity |
three types of validity | content validity criterion validity construct validity |
the extent to which the items on a test are fairly representative of the entire domain the test seeks to measure | content validity |
the extent to which test score is statistically related to the criterion | criterion validity |
a form of criterion validity that correlates test scores of current employees with measures of job performance (performance appraisal) | concurrent validity |
a form of criterion validity in which test scores of applicants are correlated to the future job performance | predictive validity |
why is a concurrent design weaker than predictive design? | because there will be very few employees at the extremes of performance scale (restricted range issues) |
the extent to which a test found valid for a job in one location or organization is valid for the same job in a different location | validity generalization |
_______ _______ is based on the assumption that tests that predict a particular component of one job should predict performance on the same job component for a different job | synthetic validity |
the extent to which a test measures the construct it intends to measure | construct validity |
three types of construct validity | convergent validity discriminant validity known-group validity |
the extent to which a test appears to be job-related which affects the applicant's motivation to do well on a test | face validity |
sources of reliability and validity information | Nineteenth Mental Measurement Yearbook | 2. compendium entitled Test in Print VIII |
refers to the practical selection of tests when it comes to the testing cost, administration, and scoring as well | Cost-efficiency |