The aim of this dissertation was (1) to examine the work choice motivation for accepting the contingent employment in relation to various outcomes (job satisfaction, job involvement, and psychological contract) and the effect on work performance (obedience, and work expectation), and (2) to test whether workers¡¦ interaction may assist in explaining difference between the various outcome and the effect on work performance. The results of this study challenged earlier assumptions on the importance of volition in temporary work research. Analyses were based on a sample of 415 contingent workers from various organizations and types of the contingent employment. The most striking findings were that work choice motivation did not consistently associate with favorable outcomes and the effect on work performance, and that the relationship between work choice motivations related to work performance outcomes were non-significant. By way of contrast, self-fulfilling motive has positively effects on job satisfaction and job involvement, work-life balance motive and self-constrain motive have positive effect on psychological contract, and work control motive has negative effect on job involvement, and psychological contract. Also, this dissertation established that workers¡¦ interaction may have potential to improve the variations on predictions. The result showed that task-related interaction between standard and contingent workers has positive effect on job satisfaction, job involvement, work expectation, and obedience. Moreover, the non-task related interaction has negative effect on obedience. The interaction effects of work choice motivation and workers¡¦ interaction on job attitudes and work performance were also examined in this study. The result shows that the interaction between work-life balance motive and non-task related interaction has positive effect on psychological contract. Moreover, the interaction effect of self-constrain motive and non-task related interaction also has positive effect on psychological contract. The implications were also discussed in this study.