Oliver P. John, PhD, is Professor of Psychology and Research Psychologist at the Institute of Personality and Social Research at the University of California, Berkeley. He has served as Associate Editor of Personality and Social Psychology Bulletin and has contributed nationally and internationally to the application of psychological research to economic and education policy. Dr. John is a recipient of the Jack Block Award for Senior Career Contributions to Personality Psychology from the Society for Personality and Social Psychology and the Best Paper of the Year Award from the Journal of Research in Personality, among numerous other honors. His research focuses on personality structure and development, emotion expression and regulation, self and self-perception processes, and research methods; his Big Five Inventory and Emotion Regulation Questionnaire have been translated into more than 20 languages.

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Richard W. Robins, PhD, is Professor of Psychology at the University of California, Davis, where he is Director of the Personality, Self, and Emotions Laboratory; Director of the California Families Project; and a member of the core faculty for the National Institute of Mental Health Training Program in Affective Science. Dr. Robins is Associate Editor of Personality and Social Psychology Review and past Associate Editor of the Journal of Personality and Social Psychology. He is a recipient of the Distinguished Scientific Award for Early Career Contribution to Psychology from the American Psychological Association and both the Theoretical Innovation Prize and the Diener Award for Outstanding Mid-Career Contributions to Personality Psychology from the Society for Personality and Social Psychology. His research focuses on personality, emotion, the self, and ethnic-minority youth development.

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