The Impact of Appeals on Selection Systems
If you’d like to review the previous articles in this series, which were posted back in November, you can find them here: Part 1: Complaints & Appeals Related to Testing: An Overview and Part 2: Considering Your Appeals Process.
This is the third article in this series on complaints and appeals and it is intended to give courage and hope to some of you in the HR profession who are dealing with rules governing complaints and appeals that do not support sound test development and validation procedures. If we are to support and improve the effectiveness of testing and the value of the work done by those in our profession, we need to recognize that there are times we need to work to change rules that are contrary to sound practices. While being a change agent can be fraught with risks, it can also produce rewards. Before going forward with any efforts to modify existing rules, it is critical to assess the climate in which you work and the impact appeal procedures have on the utility of the tests you are using.
Some of the basic things we know about test development and test validation include the fact that tests only measure the KSAP’s (knowledge, skills, abilities and personal characteristics) that an individual possesses at the time of testing. We also know that most tests we use in Human Resources are either aptitude tests or achievement tests.
In general terms:
- Aptitude tests measure one’s ability to learn and retain information over time and they are usually the types of test used for entry-level testing.
- Achievement tests are designed to measure one’s knowledge of a particular subject after having received training and/or experience in that area.
Anything that occurs post test in regard to providing candidates the opportunity to review the test and appeal test items changes candidates’ body of knowledge that can be applied to the test and therefore negatively impacts the reliability of the test. That is, we are now measuring candidates’ abilities to conduct research and make cogent arguments regarding the quality of test items and their answers compared to keyed answers. We are no longer able to determine what candidates knew or did not know at the time of the test. So when we change scores for candidates based on appeals we are giving them credit for information they may or may not have had during the test. That means we are no longer measuring what the test was intended to measure and alterations in scores that negatively impact reliability also reduce the validity of the test. (more…)