This text investigates the historical development, technical principles, and ethical complexities inherent in the field of psychological assessment. Robert J. Gregory, an established academic in the field, synthesizes decades of psychometric research to provide a comprehensive overview of how testing instruments are constructed, validated, and applied across diverse populations. The work serves as a critical examination of the utility and potential misuse of standardized testing in modern society.

This volume is regarded as a standard academic resource for students and practitioners seeking a balanced overview of psychometric theory and application. The text is noted for its objective approach to controversial topics within the field of assessment.