Description

The Group Environment Questionnaire (GEQ-18) is one of the most widely recognized and scientifically validated psychometric instruments for assessing group cohesion. Developed by Albert V. Carron and colleagues, the questionnaire is based on a multidimensional conceptual model that defines cohesion as a dynamic process reflecting the tendency of a group to remain united in pursuing common objectives while maintaining satisfying social relationships among its members.

The GEQ is extensively used in sport psychology, organizational psychology, education, team management, and the behavioral and social sciences, making it the gold-standard instrument for evaluating cohesion in athletic teams, educational groups, and workplace environments.

The questionnaire measures four fundamental dimensions of group cohesion:

  • Group Integration – Task (GI-T): Members’ perceptions of the group’s unity in achieving common goals and completing shared tasks.
  • Group Integration – Social (GI-S): Members’ perceptions of the group’s social unity and interpersonal relationships.
  • Individual Attractions to the Group – Task (ATG-T): The individual’s personal involvement, motivation, and attraction toward the group’s task-related activities.
  • Individual Attractions to the Group – Social (ATG-S): The individual’s attraction toward the social relationships and interactions within the group.

Data Analysis and Applications

The GEQ-18 provides a comprehensive assessment of group cohesion in both athletic and non-athletic settings. Its findings can be used to:

  • Measure overall team cohesion.
  • Evaluate the effectiveness of sports teams, workgroups, educational teams, and collaborative organizations.
  • Investigate the relationship between cohesion, performance, motivation, satisfaction, leadership, and team commitment.
  • Assess the effectiveness of interventions designed to improve teamwork and collaboration.
  • Examine associations between group cohesion and psychological well-being, communication, organizational climate, and interpersonal relationships.
  • Support research in sport psychology, organizational behavior, education, leadership, and human resource management.

The questionnaire allows researchers to evaluate both overall cohesion and each of its four dimensions separately, providing a detailed profile of team functioning.

Purpose

The primary purpose of the Group Environment Questionnaire (GEQ-18) is to assess how individuals perceive and experience cohesion within their group. The instrument provides valuable information regarding members’ commitment to group objectives, social integration, interpersonal relationships, and overall satisfaction with team membership. It is widely used by researchers, psychologists, coaches, educators, and organizational consultants to understand and improve team effectiveness.

Scoring

The GEQ-18 consists of 18 items, each rated on a 9-point Likert scale, where:

  • 1 = Strongly Disagree
  • 9 = Strongly Agree

Scoring includes:

  • Total Score, with a theoretical range of 18–162.
  • Subscale Scores for each of the four cohesion dimensions.
  • Reverse scoring for specific items, according to the official scoring protocol.
  • Interpretation of both the overall score and individual subscale scores to provide a multidimensional evaluation of group cohesion.

Statistical Analysis

Statistical analysis of GEQ data commonly includes:

  • Descriptive statistics (means, standard deviations, and score distributions).
  • Internal consistency assessment using Cronbach’s alpha.
  • Exploratory and confirmatory factor analyses to verify the questionnaire’s four-factor structure.
  • Correlation analyses examining relationships between cohesion and variables such as performance, motivation, leadership, communication, and satisfaction.
  • Group comparisons using independent t-tests, ANOVA, MANOVA, or non-parametric statistical methods.
  • Multivariate analyses, including regression models and structural equation modeling, to identify predictors of team cohesion.

Validity

The construct validity of the GEQ has been supported by numerous international studies confirming its multidimensional theoretical framework. The Greek adaptation was developed using the independent back-translation procedure, ensuring linguistic and conceptual equivalence with the original instrument and supporting its applicability in Greek-speaking populations.

Reliability

The Greek version of the GEQ demonstrates satisfactory psychometric properties, with reported Cronbach’s alpha coefficients of approximately 0.71 for task cohesion and 0.72 for social cohesion. Numerous international validation studies have likewise confirmed the questionnaire’s reliability, internal consistency, and stability across different populations and cultural contexts.

References

Carron, A. V.

Brawley, L. R., Carron, A. V., & Widmeyer, W. N. (1987). Assessing the Cohesion of Teams: Validity of the Group Environment Questionnaire. Journal of Sport and Exercise Psychology, 9(3), 275–294.

Ntoumanis, N., & Aggelonidis, Y. Greek adaptation of the Group Environment Questionnaire (GEQ).