A short psychosocial questionnaire for patients with Parkinson's disease: the SCOPA-PS

J Clin Epidemiol. 2003 Jan;56(1):61-7. doi: 10.1016/s0895-4356(02)00569-3.


The purpose of this study was to develop a short questionnaire for psychosocial functioning in patients with Parkinson's Disease (PD). The SCales for Outcomes in Parkinson's disease-PsychoSocial questionnaire (SCOPA-PS) was tested in a survey and compared with other instruments and with medical information. This survey was sent to 205 patents with idiopathic PD. Eighty-six percent of the questionnaires were returned. Cronbach's alpha was 0.83. Two-week test-retest reliability was 0.85 (intraclass correlation coefficient). Construct validity with other scales (Spearman's rho) was 0.82 for the Parkinson's Disease Questionnaire-39-item version (PDQ-39), 0.76 for the PDQ-8, 0.69 for the Hospital Anxiety and Depression Scale, -0.61 for the Euroqol, and -0.60 for a visual analogue scale evaluating Quality-of-Life. The summary index revealed a significant increase with increasing disease severity. The SCOPA-PS is a new, short psychosocial questionnaire for patients with PD with good clinimetric properties.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activities of Daily Living
  • Aged
  • Anxiety / etiology
  • Depression / etiology
  • Disability Evaluation
  • Female
  • Health Status
  • Humans
  • Male
  • Middle Aged
  • Parkinson Disease / psychology*
  • Psychiatric Status Rating Scales / standards
  • Quality of Life*
  • Reproducibility of Results
  • Research Design / standards
  • Self Efficacy
  • Sensitivity and Specificity
  • Surveys and Questionnaires / standards*