General Well-Being Schedule (GWBS-18)

Description

The General Well-Being Schedule (GWBS-18) is a widely recognized self-report psychometric instrument designed to assess an individual’s overall psychological well-being and subjective perception of mental health. The questionnaire consists of 18 items that evaluate key dimensions of well-being, including mood, emotional stability, energy, self-perception, perceived control, and overall life satisfaction. It was originally developed to provide a comprehensive assessment of positive psychological functioning while also identifying symptoms associated with emotional distress.

Unlike instruments that focus exclusively on psychopathology, the GWBS-18 adopts a positive mental health perspective, measuring not only the absence of psychological distress but also the presence of emotional well-being, resilience, and satisfaction with life. This holistic approach makes the instrument suitable for both clinical populations and community-based research, where assessing overall quality of life and mental functioning is essential.

The GWBS-18 is extensively used in clinical psychology, psychiatry, public health, health psychology, behavioral medicine, epidemiology, quality-of-life research, and preventive healthcare, providing researchers and healthcare professionals with valuable information regarding individuals’ psychological functioning and emotional health.

Data Analysis and Applications

Responses obtained from the General Well-Being Schedule (GWBS-18) generate quantitative data that can be analyzed using a wide range of psychometric and statistical procedures. In addition to traditional descriptive statistics, researchers commonly employ Analysis of Variance (ANOVA), multiple regression analysis, Exploratory Factor Analysis (EFA), and Confirmatory Factor Analysis (CFA) to examine the instrument’s dimensional structure and construct validity.

The psychometric evaluation of the scale typically includes:

  • Internal consistency, assessed using Cronbach’s alpha;
  • Construct validity, evaluated through exploratory and confirmatory factor analyses;
  • Cross-validation across different populations and cultural settings;
  • Convergent and discriminant validity, established through comparisons with other validated measures of mental health and quality of life;
  • Test–retest reliability, when longitudinal assessment is required.

The GWBS-18 is widely used to assess:

  • psychological well-being;
  • anxiety and perceived stress;
  • emotional stability;
  • happiness and life satisfaction;
  • psychological resilience;
  • mental health–related quality of life;
  • effectiveness of psychological, medical, and public health interventions.

Its versatility makes the GWBS-18 particularly valuable in epidemiological surveys, clinical outcome studies, occupational health research, and population-based mental health assessments.

Purpose

The primary purpose of the General Well-Being Schedule (GWBS-18) is to provide a reliable and valid assessment of an individual’s overall psychological well-being and subjective mental health.

More specifically, the instrument aims to:

  • evaluate emotional well-being and psychological functioning;
  • assess levels of happiness and life satisfaction;
  • identify symptoms associated with anxiety, stress, and emotional distress;
  • monitor changes in psychological well-being over time;
  • evaluate the effectiveness of clinical, psychological, and health promotion interventions;
  • facilitate research on quality of life, resilience, and positive mental health.

By assessing both positive and negative aspects of psychological functioning, the GWBS-18 provides a comprehensive profile of mental well-being and supports evidence-based clinical decision-making and scientific research.

Scoring

The GWBS-18 consists of 18 self-report items, with responses typically recorded using Likert-type response scales. Depending on the specific question, response categories range from “Very Dissatisfied” to “Very Satisfied” or from “Very Rarely” to “Very Often”, reflecting different aspects of subjective well-being.

Individual item scores are summed according to the official scoring guidelines to produce an overall well-being score. Higher total scores indicate:

  • greater psychological well-being;
  • higher life satisfaction;
  • stronger emotional stability;
  • greater perceived control over life circumstances;
  • better overall mental health.

Lower scores may indicate increased emotional distress, reduced psychological resilience, or diminished subjective well-being, suggesting the need for further psychological assessment when clinically appropriate.

Psychometric Properties

The GWBS-18 has demonstrated strong psychometric performance across diverse populations. Validation studies have consistently supported its internal consistency, construct validity, and cross-cultural applicability, making it one of the most frequently used instruments for measuring subjective well-being in both clinical and non-clinical settings. Its sensitivity to changes in mental health over time also makes it suitable for longitudinal research and intervention outcome evaluation.

References

Fazio, A. F. (1977). A Concurrent Validational Study of the NCHS General Well-Being Schedule. Vital and Health Statistics, Series 2, 1–53.

Dupuy, H. J. (1984). The Psychological General Well-Being (PGWB) Index. In N. K. Wenger (Ed.), Assessment of Quality of Life in Clinical Trials of Cardiovascular Therapies (pp. 170–183). Le Jacq Publishing.

McDowell, I., & Newell, C. (1996). Measuring Health: A Guide to Rating Scales and Questionnaires (2nd ed.). Oxford University Press.