Representing one type of team cognition, team mental models (TMMs) are organized mental representations of the key elements within a team’s relevant environment that are shared across team members. Although introduced amid considerable confusion concerning their nature and potential usefulness, there has been a proliferation of published studies over the past decade that have directly measured TMMs using a variety of methodologies and research designs. Capturing these exciting research developments, the purpose of this review was to inventory what has been accomplished thus far and to offer an agenda for the next wave of research. Specifically, we overview the conceptual underpinnings of TMMs, discuss measurement issues, and review the empirical record related to the outcomes, antecedents, and longitudinal work on TMMs. We conclude by highlighting fruitful opportunities for further research.

Decision styles reflect the typical manner by which individuals make decisions. The purpose of this research was to develop and validate a decision style scale that addresses conceptual and psychometric problems with current measures. The resulting 10-item scale captures a broad range of the rational and intuitive styles construct domain. Results from 5 independent samples provide initial support for the dimensionality and reliability of the new scale, as demonstrated by a clear factor structure and high internal consistency. In addition, our results show evidence of convergent and discriminant validity through expected patterns of correlations across decision-making individual differences and the International Personality Item Pool (IPIP) Big Five traits. Research domains that would benefit from incorporating the concept of decision styles are discussed.

Although often ignored, establishing and maintaining congruence in team members' temporal perceptions are consequential tasks that deserve research attention. Integrating research on team cognition and temporality, this study operationalized the notion of a temporal team mental model (TMM) at two points in time using two measurement methods. Ninety eight threeperson teams participated in a computerized team simulation designed to mimic emergency crisis management situations in a distributed team environment. The results showed that temporal TMMs measured via concept maps and pairwise ratings each positively contributed uniquely to team performance beyond traditionally measured taskwork and teamwork content domains. In addition, temporal TMMs assessed later in teams' development exerted stronger effects on team performance than those assessed earlier. The results provide support for the continued examination of temporal TMM similarity in future research.

Although conflict over ideas is thought to be beneficial to task performing groups, research documents a strong interrelation between idea-based task conflict and emotionally laden relationship conflict. The current study posits the manner in which task conflicts are managed influences subsequent relationship conflict. Two hundred seventy participants formed dyads to discuss a task issue. The conflict management strategy of one member was manipulated to examine the resulting level of relationship conflict perceived by the partner. The level of relationship conflict after the meeting was significantly impacted by the management style used during the meeting: competing produced the most, and collaborating the least, relationship conflict. Findings suggest competing to resolve task-based differences may be particularly harmful by generating relationship conflict.

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