Psychometric Properties and Performance of the Patient Reported Outcomes Measurement Information System^® (PROMIS^®) Depression Short Forms in Ethnically Diverse Groups.

ABSTRACT: Short form measures from the Patient Reported Outcomes Measurement Information System^® (PROMIS^®) are used widely. The present study was among the first to examine differential item functioning (DIF) in the PROMIS Depression short form scales in a sample of over 5000 racially/ethnically diverse patients with cancer. DIF analyses were conducted across different racial/ethnic, educational, age, gender and language groups.

Methods

DIF hypotheses, generated by content experts, informed the evaluation of the DIF analyses. The graded item response theory (IRT) model was used to evaluate the five-level ordinal items. The primary tests of DIF were Wald tests; sensitivity analyses were conducted using the IRT ordinal logistic regression procedure. Magnitude was evaluated

SUBMITTER: Teresi JA 

PROVIDER: S-EPMC5443256 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature