Reliability and Validity

When you arrive at the selection phase of the talent planning process, its important to ensure that all the tools used are reliable. This is everything from the application form which collects bio data about a candidate and interview questions. The Uniform Guidelines on Employee Selection Procedures also known as UGESP outlines and describes this criteria using reliability and validity.

Reliability is a scientific term that refers to the degree to which a test consistently predicts what the employer thinks it predicts. It asks the question is the tool dependable and consistent in predicting the same outcomes each time the instrument is used. This instrument in this case is whatever instrument we are using in the selection process.

Validity refers to the extent that an instrument measures what it claims to measure. So reliability asks is the instrument is consistent and dependable. Validity asks does it really measure what it claims to measure. Your book goes into a lot more detail about the different types of validity. But we’ll spend a few moments discussing them here as well. UGESP describes three major strategies for validating a selection process. They are:

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