title: Establishing a common metric for self-reported anxiety: linking the MASQ, PANAS, and GAD-7 to PROMIS Anxiety.
abstract: Researchers and clinicians wishing to assess anxiety must choose from among numerous assessment options, many of which purport to measure the same or a similar construct. A common reporting metric would have great value and can be achieved when similar instruments are administered to a single sample and then linked to each other to produce cross-walk score tables. Using item response theory (IRT), we produced cross-walk tables linking three popular "legacy" anxiety instruments--MASQ (N=743), GAD-7 (N=748), and PANAS (N=1120)--to the anxiety metric of the NIH Patient Reported Outcomes Measurement Information System (PROMIS(®)). The linking relationships were evaluated by resampling small subsets and estimating confidence intervals for the differences between the observed and linked PROMIS scores. Our results allow clinical researchers to retrofit existing data of three commonly used anxiety measures to the PROMIS Anxiety metric and to compare clinical cut-off scores.
authors: Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 625 Michigan Avenue, 27th Floor, Chicago, IL 60611, United States. Electronic address: b-schalet@northwestern.edu.
authors: Benjamin D
authors: BD
authors: Schalet
authors: Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 625 Michigan Avenue, 27th Floor, Chicago, IL 60611, United States. Electronic address: karon.cook@northwestern.edu.
authors: Karon F
authors: KF
authors: Cook
authors: CTB/McGraw-Hill, 20 Ryan Ranch Road, Monterey, CA 93940, United States. Electronic address: seung_choi@ctb.com.
authors: Seung W
authors: SW
authors: Choi
authors: Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, 625 Michigan Avenue, 27th Floor, Chicago, IL 60611, United States. Electronic address: d-cella@northwestern.edu.
authors: David
authors: D
authors: Cella
mesh_terms: D000328:Adult; D000368:Aged; D001007:Anxiety / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D015203:Reproducibility of Results; D057566:Self Report / Q000592:standards*; D011795:Surveys and Questionnaires / Q000592:standards*
keywords: Anxiety; GAD-7; Linking; MASQ; PANAS; PROMIS