Shortening the PHQ-9: a proof-of-principle study of utilizing Stochastic Curtailment as a method for constructing ultrashort screening instruments

Screening for Behavioral Health Conditions in Primary Care Settings: A Systematic Review of the Literature

“…25 Researchers often shorten (to PHQ-8), excluding item about self-harm and death; item may be important to include in clinical practice. 26 General Anxiety Disorder scale, 7 items (GAD-7) 27 General anxiety disorder Primary care clinics; measured against clinical interview ≥10 89 82 X Self-administered in <5 min. Validated in a general German population.…”

A data-driven method for identifying shorter symptom criteria sets: the case for DSM-5 alcohol use disorder

“…The development and investigation into short-form methodology is a substantial subfield of psychometrics and has contributed to many advances in test shortening and curtailment (e.g. Singh et al , 2009; Bohlmeijer et al , 2011; Finkelman et al , 2011, 2012, 2017; Smits and Finkelman, 2015; Black et al , 2017; Gibbons et al , 2017). More traditional ‘static’ test-shortening designs, and the focus of our methodology require all respondents to receive the same full set of items, with short-forms identified from the original full set using a specified methodology.…”

“…Test shortening for computer-based assessments includes curtailment and stochastic curtailment, which are sequential analysis techniques that classify respondents into categories. These methods cease testing at the point at which additional items cannot or are unlikely to change the respondent's classification (Finkelman et al , 2011, 2012; Smits and Finkelman, 2015; Gibbons et al , 2017).…”