Neighborhood Cohesion [NC-8]

Description

The Neighborhood Cohesion Questionnaire (NC-8) is a brief psychometric instrument designed to assess the level of social cohesion within a neighborhood. It measures the extent to which residents perceive a sense of belonging, mutual trust, social connectedness, and support among community members. Neighborhood cohesion is closely associated with the concepts of social capital, community resilience, and collective efficacy, making it an important indicator of community well-being and quality of life.

The NC-8 is widely used in research across public health, psychology, sociology, urban planning, and community development to evaluate how social relationships within residential environments influence individual and collective outcomes. Higher neighborhood cohesion has been linked to improved mental health, greater perceived safety, stronger social support networks, increased civic participation, and enhanced overall well-being.

Analysis and Use of Data

Analysis of NC-8 data provides valuable insights into residents’ perceptions of their neighborhood’s social environment, including trust, interaction, cooperation, and community engagement.

Statistical analysis commonly includes:

  • Descriptive statistics (mean, standard deviation, median, and score distribution).
  • Assessment of internal consistency using Cronbach’s alpha or other reliability coefficients.
  • Evaluation of construct validity through Exploratory Factor Analysis (EFA) or Confirmatory Factor Analysis (CFA).
  • Group comparisons using independent samples t-tests, ANOVA, or appropriate non-parametric tests.
  • Correlation analyses examining associations with quality of life, mental health, social support, perceived safety, neighborhood satisfaction, and community participation.
  • Regression or structural equation models to identify predictors and outcomes of neighborhood cohesion.

The findings can support academic research, public health initiatives, urban policy development, community interventions, and the evaluation of programs designed to strengthen social connectedness.

Objective

The primary objective of the NC-8 is to provide a reliable and valid measure of neighborhood social cohesion by evaluating residents’ perceptions of community relationships and social integration.

More specifically, the questionnaire aims to:

  • Assess residents’ sense of belonging within their neighborhood.
  • Measure levels of interpersonal trust and mutual support.
  • Evaluate community interaction and social connectedness.
  • Identify neighborhoods with stronger or weaker social cohesion.
  • Support research investigating the relationship between neighborhood characteristics and physical, psychological, and social health.
  • Assist policymakers and community organizations in designing evidence-based interventions that foster safer, healthier, and more cohesive communities.

Scoring

The NC-8 consists of 8 items assessing different aspects of neighborhood cohesion. According to the version provided, responses are scored as follows: Agree = 1, No Opinion = 2, and Disagree = 3.

The total score is calculated by summing the responses across all items. Depending on the scoring protocol adopted in a particular study, reverse scoring may be required for specific items before computing the overall score. Interpretation of the final score should always follow the guidelines of the validated version used in the research.

References

Perkins, D. D., Florin, P., Rich, R. C., Wandersman, A., & Chavis, D. M. (1990). Participation and the social and physical environment of residential blocks: Crime and community context. American Journal of Community Psychology, 18(1), 83–115.

Houston Community Demonstration Project. (1993). Houston Community Demonstration Project. City of Houston Health and Human Services Department.