The current study first longitudinally examines the validity of person-environment (P-E) RIASEC congruence, adopting a job analytic method to assess the environment and using PE difference scores to compute congruence, to predict a range of intrinsic career outcomes-including job satisfaction, skill development, work involvement, and perceived stress-in a sample of 401 college seniors involved in the labor market. Second, the incremental validity of an alternative conceptualization of the P component (i.e., the Five-Factor Model of personality [FFM]) is examined over and beyond RIASEC congruence scores. Congruence across RIASEC types significantly predicted job satisfaction and skill development, but FFM traits significantly and substantially contributed to the prediction of all intrinsic career outcomes. Finally, a person-centered perspective to P-E questions is introduced, demonstrating that cluster analysis of individuals' FFM scores resulted in two clusters (i.e., internalizers/externalizers and resilients) showing very different positions on the labor market and reporting differing initial career outcomes. It is concluded that RIASEC P-E fit congruence studies should be complemented with FFM assessment to increase predictive validity. Applications of an FFM-based, person-centered approach in I/O and P-E fit research and practice are discussed. (C) 2002 Elsevier Science.