Clinical Overview
The Pediatric Quality of Life Enjoyment and Satisfaction Questionnaire (PQ-LES-Q)© represents a specialized adaptation of the adult Q-LES-Q, specifically designed to assess quality of life in children and adolescents. This 15-item self-administered instrument was developed by Dr. Jean Endicott and colleagues to evaluate the degree of enjoyment and satisfaction experienced by young people across various domains of daily functioning. The PQ-LES-Q captures age-appropriate quality of life indicators including school performance, peer relationships, family interactions, physical activities, and overall life satisfaction during the past week.
Designed with developmental considerations in mind, the PQ-LES-Q addresses the critical need for validated quality of life measurement in pediatric psychiatric populations. The questionnaire utilizes a 5-point Likert scale format that is developmentally appropriate for children as young as 6 years old, while maintaining sophisticated psychometric properties essential for clinical research and practice. Its ability to detect meaningful changes in quality of life makes it particularly valuable for monitoring treatment outcomes in pediatric mental health interventions and supporting evidence-based care decisions in child and adolescent psychiatry.
Key Validation Points
- Robust Pediatric Validation – Extensively validated in children ages 6-11 and adolescents ages 12-17, with demonstrated excellent internal consistency (Cronbach’s alpha > 0.90) and strong test-retest reliability
- Cross-Diagnostic Applications – Validated across diverse pediatric psychiatric populations including ADHD, anxiety disorders, depression, OCD, and other childhood mental health conditions
- Developmental Appropriateness – Psychometric properties confirmed across different age groups with established measurement invariance, supporting use from childhood through adolescence
- Treatment Sensitivity – Proven responsiveness to therapeutic interventions in pediatric clinical trials, demonstrating ability to detect meaningful quality of life improvements
- General Population Norms – Validated in both clinical and community samples, providing normative data for comparison and research applications in general youth populations
- Research Integration – Widely incorporated into pediatric psychiatric research with over 180 citations in peer-reviewed literature supporting its clinical utility and research applications
Primary Use Cases
- Pediatric Clinical Trials – Primary and secondary outcome measure in pharmaceutical and psychotherapy trials for children and adolescents, providing validated quality of life assessment
- Treatment Outcome Monitoring – Longitudinal assessment of therapy effectiveness in child and adolescent psychiatry, including medication management and behavioral interventions
- School-Based Mental Health Programs – Quality of life screening and monitoring in educational settings, supporting comprehensive student mental health initiatives
- Pediatric Research Applications – Population studies, epidemiological research, and health services research requiring validated quality of life measurement in youth populations
- Clinical Practice Integration – Routine assessment tool for comprehensive evaluation and treatment planning in child and adolescent psychiatric practice and community mental health settings
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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