Multiple levels of analysis were used to examine the link between stable dispositions and more state-oriented work reactions such as job satisfaction. Participants in the study were employees from a large state education system and an urban hospital. The proportion of between-group variance in positive work affect, negative work affect, and job satisfaction increased after dispositional measures of neuroticism and extraversion were included, although the confidence intervals overlapped. Aggregate perceptions of excessive job demands explained more between-group variance in work reactions after dispositions were included. Previous research conducted at a single level of analysis suggests that the inclusion of stable dispositions can attenuate the link between work characteristics and work reactions. The present study suggests the opposite pattern when group-level variance is considered.