Hiring Success The Art and Science of Staffing Assessment and Employee Selection

Staffing assessments—personality measures, ability tests, background checks, structured interviews, and work simulations—are used to evaluate millions of job candidates each year, yet few people understand how they actually work or why they outperform intuition-based hiring. Written by industrial-organizational psychologist Steven Hunt, Hiring Success bridges the gap between dense scientific research and oversimplified vendor white papers, offering a thorough but accessible explanation of assessment science. The book shows that human behavior is remarkably consistent over time, which is why well-designed assessments can predict future job performance months or years in advance far more accurately than unstructured interviews or resume reviews. It walks readers through what assessments measure (what candidates have done, can do, and want to do), how to evaluate their validity and business value, how to answer common criticisms, and how to integrate assessments into hiring processes for both entry-level and professional jobs. The result is a practical toolkit for anyone who wants to hire better employees while treating candidates fairly.

What it argues

Hiring Success The Art and Science of Staffing Assessment and Employee Selection

Key ideas it contributes

• Assessment Validity — The degree to which a staffing assessment accurately measures job-relevant candidate attributes and predicts actual job performance and tenure, established through face, content, criteria, and construct validation.
• Assessment Design and Deployment Quality — The extent to which an assessment is well-built, based on job analysis, standardized in administration, and appropriately scored (including localized and non-linear scoring), enabling consistent and accurate collection and interpretation of candidate data.
• Candidate Pool Size — The number of eligible candidates considered for each job opening relative to the number of openings; larger pools mean more selection decisions per hire and greater potential value from assessments.
• Job Performance Variance — The difference in financial value between high-performing and low-performing employees in a job, reflecting both the value of great hires and the cost of bad hires; the higher the variance, the more value assessments provide.
• Candidate Attributes — The enduring characteristics of candidates measured by assessments, including what they have done (experience), what they can do (personality and ability), and what they want to do (motives and interests), many of which are genetically influenced and stable over time.
• Job-Relevant Employee Behaviors — The specific productive and counterproductive behaviors employees display on the job that are driven by their underlying attributes and that in turn determine job performance outcomes.
• Hiring Decision Accuracy — The degree to which selection decisions correctly identify candidates who will succeed and screen out those who will fail, improved by systematic, unbiased collection and interpretation of candidate information.
• Candidate Reactions and Experience — How favorably candidates perceive the assessment process in terms of job relevance, fairness, length, and invasiveness, affecting whether they remain in the process and their attitudes toward the employer.
• Workforce Quality and Performance — The overall level of employee performance and productivity across a workforce, which improves gradually as valid assessments are used to hire better-suited employees over time.
• Organizational Financial Outcomes — The bottom-line business results—profitability, revenue (Human Value Added), reduced turnover costs, and staffing efficiency—that result from hiring higher-quality employees through valid assessments.