Clinical Overview
The Quality of Life Enjoyment and Satisfaction Questionnaire – Short Form (Q-LES-Q-SF)© represents a streamlined version of the original Q-LES-Q, specifically designed for efficient clinical practice and research applications. This 16-item self-administered instrument maintains the comprehensive assessment capabilities of the original scale while significantly reducing administration burden, making it ideal for routine clinical use and large-scale research studies. The Q-LES-Q-SF evaluates the degree of enjoyment and satisfaction experienced across key life domains including physical health, mood, work, household activities, social relationships, and general activities during the past week.
Developed through rigorous psychometric analysis, this shortened version preserves the essential measurement properties of the full-length questionnaire while offering enhanced practicality for busy clinical settings. The scale’s ability to capture meaningful changes in quality of life makes it particularly valuable for treatment monitoring, outcome assessment, and clinical decision-making across diverse psychiatric populations. Its efficient format enables frequent administration without causing assessment fatigue, supporting continuous quality of life monitoring throughout treatment.
Key Validation Points
- Robust Psychometric Properties – Demonstrated excellent internal consistency (Cronbach’s alpha = 0.90-0.94) and strong test-retest reliability across multiple psychiatric populations including depression, anxiety, ADHD, and psychotic disorders
- Cross-Cultural Validation – Validated across ten different countries with established measurement invariance, supporting international research applications and diverse clinical populations
- Clinical Sensitivity – Proven responsiveness to treatment effects in clinical trials, with demonstrated ability to detect meaningful changes in quality of life following psychiatric interventions
- Convergent Validity – Strong correlations with established quality of life measures and appropriate relationships with symptom severity scales, confirming its unique contribution to clinical assessment
- Diverse Population Studies – Extensively validated in adults with major depression, bipolar disorder, schizophrenia, ADHD, and other psychiatric conditions, as well as healthy control populations
- Research Integration – Widely incorporated into clinical trials and outcome studies, with over 300 peer-reviewed publications supporting its clinical utility and research applications
Primary Use Cases
- Clinical Trial Efficiency – Primary and secondary outcome measure in pharmaceutical trials requiring brief, validated quality of life assessment with reduced participant burden
- Routine Clinical Monitoring – Weekly or monthly assessment of treatment response and functional improvement in outpatient psychiatric practice and community mental health settings
- Large-Scale Research Studies – Population health research, epidemiological studies, and health services research requiring efficient quality of life measurement across large cohorts
- Treatment Outcome Evaluation – Longitudinal assessment of psychotherapy, medication, and integrated treatment approaches, providing rapid feedback on patient-reported outcomes
- Quality Improvement Initiatives – Healthcare system outcome monitoring, program evaluation, and quality assurance activities requiring standardized quality of life measurement
Licensing Information
Professional Licensing Available
This validated psychiatric rating scale is available for licensing to qualified organizations, research institutions, and clinical practices. Our licensing agreements provide you with the legal rights to use this assessment tool in your clinical trials, research studies, or patient care programs.
Licensing includes: Scale administration rights, scoring guidelines, technical documentation, and ongoing support for proper implementation.
Request Licensing Information
Interested in licensing this scale for your research or clinical practice? Complete the form below and our team will contact you with detailed licensing information, pricing, and implementation support.
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