Explain 5 Characteristics of “Good” selection systems
1) Reliability – Definition-, methods of assessing reliability
Correlation coefficient, test-retest reliability, interrater reliability
2) Validity – 2 main types of validity
Content validity
Criterion related validity
Definition of CRV, Validity coefficient, standards for evaluating validity coefficients Methods of demonstrating CRV (concurrent, predictive, validity generalization)
3) Utility
Selection ratio, cost, variability in performance, accuracy of selection decision
False positives, false negatives, true positives, true negatives
4) Legality
5) Acceptability