Adverse impact occurs when a neutral employment practice disproportionately excludes a protected group (race, gender, age, disability). The 4/5ths Rule (80% rule) : If the selection rate for one group is less than 80% of the rate for the highest group, adverse impact is indicated.
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Work sample tests (asking candidates to perform actual job tasks) have the highest validity (0.54). Next are cognitive ability tests (0.51) and structured interviews (0.51). Least valid are graphology (handwriting analysis – near zero validity) and years of experience (low validity due to variability). Adverse impact occurs when a neutral employment practice
The Ultimate Guide to Industrial Psychology Questions and Answers: Preparing for Exams and Interviews This article serves as a living resource—a deep