The International Society for the Study of Individual Differences

The International Society for the Study of Individual Differences (ISSID) is a professional organization dedicated to understanding how people differ from one another in traits like intelligence, personality, and abilities. Its members include researchers and scholars who study these differences to better comprehend human behavior, development, and diversity. ISSID promotes collaboration, sharing of research findings, and advancing knowledge in psychometrics and related fields, ultimately helping us understand what makes each person unique in a scientific way.