Final answer:
Analyses suggest that a general mental ability test can be a successful predictor of job performance roughly 75% of the time.
Step-by-step explanation:
According to the "What Really Works" box, analyses suggest that a test of general mental ability will be a successful predictor of a job applicant's on-the-job performance about 75 percent of the time. A general mental ability test is used by organizations as part of their selection process to evaluate the candidates' knowledge, skills, and abilities (KSAs) and determine if they match the requirements of the job position. These tests are designed to measure cognitive capabilities and are thought to correlate with job performance.