By the end of the nineteenth century, industrial, or personnel psychology, was developed as a way to understand work behavior.

The validity and utility of selection methods in personnel psychology:

The practice of competency modeling, Personnel Psychology, 53, 703-740.

A graduate of Manhattan College, he received a master's degree in personnel psychology from Columbia University.

A meta-analysis of selection methods in personnel psychology found that general mental ability was the best overall predictor of job performance and training performance.

The validity and utility of selection methods in personnel psychology: Practice and theoretical implications of research findings.

Journal of Personnel Psychology 9, 4, 203-211.

Personnel Psychology, 49, 307 - 339.

Articles cover all fields in personnel psychology, including "selection, performance measurement, motivation, leadership, organizational commitment, personnel development and training, new test developments, and job analysis."

Journal of Personnel Psychology, 9, 17-26.