- Team Dynamics and Performance
- Evolutionary Game Theory and Cooperation
- Behavioral Health and Interventions
- Knowledge Management and Sharing
- Opinion Dynamics and Social Influence
- Experimental Behavioral Economics Studies
- Social and Intergroup Psychology
- Complex Systems and Decision Making
- Evolutionary Psychology and Human Behavior
- Attachment and Relationship Dynamics
- Innovative Teaching and Learning Methods
- Personality Traits and Psychology
- Cultural Differences and Values
- Mental Health Research Topics
- Complex Systems and Time Series Analysis
- Gender Diversity and Inequality
- Exercise and Physiological Responses
- Leadership, Courage, and Heroism Studies
- Complex Network Analysis Techniques
- Game Theory and Applications
- Occupational Health and Performance
- Terrorism, Counterterrorism, and Political Violence
- Communication in Education and Healthcare
- Meta-analysis and systematic reviews
- Psychology of Moral and Emotional Judgment
University of Oregon
2004-2023
Decision Sciences (United States)
2007-2011
University of Illinois Urbana-Champaign
1996-1997
Oregon Department of Education
1997
A century of research on small groups has yielded bountiful findings about many specific features and processes in groups. Much that work, line with a positivist epistemology emphasizes control precision favors the laboratory experiment over other data collection strategies, also tended to treat as though they were simple, isolated, static entities. Recent trends complex, adaptive, dynamic systems open up new approaches studying In those trends, theory complex is offered some methodological...
This article describes the network approach to small groups. First, core constructs that compose social research are explained. The primary theories provide intellectual underpinning of described, including self-interest, exchange or dependency, mutual collective interest, cognitive theories, and homophily. Highlights empirical work examining internal external networks groups is summarized. Finally, challenges researchers face when applying perspective groups, benefits can accrue who adopt...
Group identification is defined as member with an interacting group and distinguished conceptually from social identity, cohesion, common fate. proposed to have three sources: cognitive (social categorization), affective (interpersonal attraction), behavioral (interdependence). Inconsistent use of the term problematic measurement mar existing literature on identity identification. A new scale, composed subscales that match tripartite model for cognitive, affective, sources, presented its...
This article reviews literature that takes a temporal perspective on groups, focusing particularly the theories guide such work. The is process-focused view treats groups as systems in which change occurs across multiple time scales. review organized around six themes have been especially generative: (a) Time socially constructed; (b) resource; (c) fundamental issue for theory and research; (d) systematically over time; (e) group processes patterns; (f) are complex characterized by nonlinear...
Replication studies in psychological science sometimes fail to reproduce prior findings. If these use methods that are unfaithful the original study or ineffective eliciting phenomenon of interest, then a failure replicate may be protocol rather than challenge finding. Formal pre-data-collection peer review by experts address shortcomings and increase replicability rates. We selected 10 replication from Reproducibility Project: Psychology (RP:P; Open Science Collaboration, 2015) for which...
Thisfinal article presents a summary ofthefindings in thefourpreceding substantive studies, placing them the context of theoretical formulations underlying work. It then discusses some issues involved attempts to do research on effects experience and change.
A framework for integrating diverse aspects of membership dynamics is outlined, and 10 propositions about change its impact on group structure, process, performance are presented. Data from a longitudinal study 22 small (3-to 5-person) groups used to test some the propositions. Groups that had an experimentally imposed temporary member (a "guest") with spontaneous changes, such as absences, performed better task requiring reflection group's internal processes than did stable membership. No...
Three models of change and continuity in group structure are tested using existing longitudinal data on 20 small groups.Groups met face to or via a computer-mediated communication system for 13 weeks.Computer-mediated groups fit the robust equilibrium pattern best, with initial fluctuations influence hierarchy followed by more stable that persisted despite changes operating conditions.Face-to-face bistable punctuated retaining their until an environmental cue triggered shift.Contrary die...
Abstract The study of aversive or ‘dark’ personality traits (e.g., Machiavellianism, narcissism, and psychopathy) is afflicted by three types issues. Measures that are meant to assess the same often capture different content—an issue jingle. near‐identical jangle. Finally, disagreement over what unites leads conclusions about not an trait—an conceptual centrality. This outlines how decomposing into smaller elements can address these It also provides a primer on history assessment sets agenda...
During a 15-week study, 23 students made performance self-evaluations before and after taking 3 in-class exams. Hypothesized changes in self-evaluative accuracy, defined as the correspondence of with an objective measure performance, were based on theory research self-appraisals, judgment decision making, self. The accuracy was predicted to vary systematically informational motivational context across repeated trials. As hypothesized, preperformance evaluations for first exam overly opti-...
Primatological and archeological evidence along with anthropological accounts of hunter-gatherer societies indicate that lethal between-group violence may have been sufficiently frequent during our ancestral past to shaped evolved behavioral repertoire. Two simulations explore the possibility heroism (risking one's life fighting for group) as a specialized form altruism in response war. We show war selects strongly but only weakly domain-general altruistic propensity promotes both other...
An experience sampling study examined the degree to which feeling stereotyped predicts feelings of low power and inhibition among stigmatized nonstigmatized individuals. For 7 days, participants with a concealable (gay lesbian), visible (African American), or no identifiable stigma recorded being stereotyped, powerlessness, immediately following social interactions. members all three groups, was associated more inhibition, this relation partially mediated by in power. Although reported often...
Background Olympic weightlifting requires strength, speed, and explosive power. Vigorous physical activity such as weightlifting, for older adults has many benefits from improved social interactions, a healthy independent lifestyle. Little is known about the training habits, health, lifestyle of Masters weightlifters that includes top level athletes well beginners, there dearth data on women. Objectives The primary aim was to describe demographics, health including prevalence injury chronic...
Abstract Rationale Multidisciplinary groups are common in the health care arena, from operating teams to mental treatment guideline development groups. Differences among group members information, background, training and skills can potentially help reach good decisions complete complex tasks variable circumstances. Too often, however, differences values, status preferences prevent these achieving potential benefits of diversity, marooning them instead an unproductive fixed state. Aim...
Replications in psychological science sometimes fail to reproduce prior findings. If replications use methods that are unfaithful the original study or ineffective eliciting phenomenon of interest, then a failure replicate may be protocol rather than challenge finding. Formal pre-data collection peer review by experts address shortcomings and increase replicability rates. We selected 10 from Reproducibility Project: Psychology (RP:P; Open Science Collaboration, 2015) which authors had...
Studies of victim number effects in charitable giving consistently find that people care more and help when presented with an appeal to individual compared multiple need. Across three online experiments (N = 1,348), Bayesian estimation revealed the opposite pattern responded appeals targets different sizes (1, 2, 5, 7, 12). In this joint evaluation context, participants donated larger groups, were both ascending order (Study 1) random 2). The held whether or not saw overview all at start...
Participants played four rounds of a social card game in which they formed groups to make hands and earn money. When isolates—players left out when formed—earned nothing, self-organized frequently included these extra people, even though this decreased earnings for group members. Although composition remained fluid, with time most populations settled into pattern including everyone. isolates received small welfare payment, formation was less ordered predictable exclusion common. exact...
An experience sampling study tested the degree to which interactions with out‐group members evoked negative affect and behavioural inhibition after controlling for level of friendship between partners. When was statistically controlled, neither White nor Black participants reported feeling more discomfort interacting ethnic compared in‐group members. partners differed in sexual orientation, had a less palliating effect. Controlling friendship, both gay straight men – but not women felt...