This book is the first to bring together researchers in individual differences in personality and temperament to explore whether there is any unity possible between the temperament researchers of infancy and childhood and the major researchers in adult personality. Prior to the workshop which resulted in this volume, the existing literature seemed to document a growing consensus on the part of the adult personality researchers that five major personality dimensions -- the ""Big Five""--Might be sufficient to account for most of the important variances in adult individual differences in perso