Aleksander P. J. Ellis

Team learning: collectively connecting the dots.

This article tests the degree to which personal and situational variables impact the acquisition of knowledge and skill within interactive project teams. On the basis of the literature regarding attentional capacity, constructive controversy, and truth-supported wins, the authors examined the effects of cognitive ability, workload distribution, Agreeableness, Openness to Experience, and structure on team learning. Results from 109 four-person project teams working on an interdependent command and control simulator indicated that teams learned more when composed of individuals who were high in cognitive ability and when the workload was distributed evenly. Conversely, team learning was negatively affected when teams were composed of individuals who were high in Agreeableness. Finally, teams using a paired structure learned more than teams structured either functionally or divisionally. Theoretical and practical implications are discussed, as well as possible limitations and directions for future research.

System Breakdown: The Role of Mental Models and Transactive Memory in the Relationship between Acute Stress and Team Performance

In an effort to extend theory and research on the effects of acute stress in teams, I examined the mediational role of mental models and transactive memory in the relationship between acute stress ...

Backing up behaviors in teams: the role of personality and legitimacy of need.

In this article, the authors developed several hypotheses regarding both the main and interactive effects of 2 types of team inputs on backing up behaviors in teams: (a) team composition characteristics in terms of the personality of the members of the team and (b) team task characteristics in terms of the extent to which the nature of the task is one that legitimately calls for some members of the team to back up other members of the team. Results from a study of 71 4-person teams performing a computerized tactical decision-making task suggest that the legitimacy of the need for back up has an important main effect on the extent to which team members provide assistance to and receive assistance from each other. In addition, the legitimacy of the need for back up also has important interactive effects with both the personality of the back up recipient and the personality of the back up providers on backing up behaviors in teams.

Structural contingency theory and individual differences: Examination of external and internal person-team fit

This article develops and tests a structurally based, integrated theory of person-team fit. The theory developed is an extension of structural contingency theory and considers issues of external fit simultaneously with its examination of internal fit at the team level. Results from 80 teams working on an interdependent team task indicate that divisional structures demand high levels of cognitive ability on the part of teammembers. However, the advantages of high cognitive ability in divisional structures are neutralized when there is poor external fit between the structure and the environment. Instead, emotional stability becomes a critical factor among teammembers when a divisional structure is out of alignment with its environment. Individual differences seem to play little or no role in functional structures, regardless of the degree of external fit.

Unlocking the Effects of Gender Faultlines on Team Creativity: Is Activation the Key?

The purpose of this study was to use faultline theory to examine the effects of gender diversity on team creativity. Results from 80 teams working on an idea generation task indicated that the activation of gender faultlines negatively affected the number and overall creativity of ideas. However, gender faultlines that were not activated had no effect. Results also indicated that the relationship between activated gender faultlines and team creativity was partially mediated by the level of conflict within the team. Specifically, emotional conflict partially mediated the effects of activated gender faultlines on the number of ideas generated. Implications are discussed, as well as possible limitations and directions for future research.

The Effects of Critical Team Member Assertiveness on Team Performance and Satisfaction

In an effort to extend theory and research linking personality to team effectiveness, this study used the workflow networks literature to investigate the effects of critical team member dispositional assertiveness on team performance and satisfaction. Results from 64 teams working on a command-and-control simulation indicated that critical team member dispositional assertiveness positively affected team performance and team satisfaction. Results also indicated that both of those effects were due to improvements in the teams transactive memory system.

Asymmetric adaptability: Dynamic team structures as one-way streets

This study tested whether teams working on a command and control simulation adapted to structural change in the manner implied by contingency theories. Teams shifting from a functional to a divisional structure showed better performance than teams making a divisional-to-functional shift. Team levels of coordination mediated this difference, and team levels of cognitive ability moderated it. We argue that the static logic behind many contingency theories should be complemented with a dynamic logic challenging the assumption of symmetrical adaptation.

Building the infrastructure: The effects of role identification behaviors on team cognition development and performance.

The primary purpose of this study was to extend theory and research regarding the emergence of mental models and transactive memory in teams. Utilizing Kozlowski, Gully, Nason, and Smiths (1999) model of team compilation, we examined the effect of role identification behaviors and posited that such behaviors represent the initial building blocks of team cognition during the role compilation phase of team development. We then hypothesized that team mental models and transactive memory would convey the effects of these behaviors onto team performance in the team compilation phase of development. Results from 60 teams working on a command-and-control simulation supported our hypotheses.

Motivating interdependent teams: individual rewards, shared rewards, or something in between?

The primary purpose in this study was to extend theory and research regarding the motivational process in teams by examining the effects of hybrid rewards on team performance. Further, to better understand the underlying team level mechanisms, the authors examined whether the hypothesized benefits of hybrid over shared and individual rewards were due to increased information allocation and reduced social loafing. Results from 90 teams working on a command-and-control simulation supported the hypotheses. Hybrid rewards led to higher levels of team performance than did individual and shared rewards; these effects were due to improvements in information allocation and reductions in social loafing.

Thick as Thieves: The Effects of Ethical Orientation and Psychological Safety on Unethical Team Behavior

The purpose of this study was to uncover compositional and emergent influences on unethical behavior by teams. Results from 126 teams indicated that the presence of a formalistic orientation within the team was negatively related to collective unethical decisions. Conversely, the presence of a utilitarian orientation within the team was positively related to both unethical decisions and behaviors. Results also indicated that the relationship between utilitarianism and unethical outcomes was moderated by the level of psychological safety within the team, such that teams with high levels of safety were more likely to engage in unethical behaviors. Implications are discussed, as well as potential directions for future research.