Operating Characteristics of PROMIS Four-Item Depression and Anxiety Scales in Primary Care Patients with Chronic Pain

A Brief Measure for Assessing Generalized Anxiety Disorder

Robert L. Spitzer, Kurt Kroenke, Janet B. W. Williams et al. · Archives of Internal Medicine · 2006 · 29.5K citations

The Patient-Reported Outcomes Measurement Information System (PROMIS) developed and tested its first wave of adult self-reported health outcome item banks: 2005–2008

David Cella, William T. Riley, Arthur A. Stone et al. · Journal of Clinical Epidemiology · 2010 · 4.9K citations · Full text

Family Medicine, Health Policy, Ehr Systems +12

Anxiety Disorders in Primary Care: Prevalence, Impairment, Comorbidity, and Detection

Kurt Kroenke, Robert L. Spitzer, Janet B. W. Williams et al. · Annals of Internal Medicine · 2007 · 4.6K citations

An Ultra-Brief Screening Scale for Anxiety and Depression: The PHQ-4

Kurt Kroenke, Robert Spitzer, Janet B. W. Williams et al. · Psychosomatics · 2009 · 3.4K citations

Psychological Co-morbidities, Psychiatry, Mood Symptom +9

The reliability of a two-item scale: Pearson, Cronbach, or Spearman-Brown?

Rob Eisinga, Manfred te Grotenhuis, Ben Pelzer · International Journal of Public Health · 2012 · 2.4K citations · Full text

Reliability, Engineering, Measurement +10