Is less more? A preliminary investigation of the number of response categories in self-reported pain

The purpose of this study was to conduct a preliminary investigation of the number of response options for self-reports of pain interference. Responses to interference items of the 11-category Brief Pain Inventory (BPI) were obtained in a sample of 434 persons from two sites and modeled using the pa...

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Bibliographic Details
Main Authors: Cook, Karon F, Cella, David, Boespflug, Erin L, Amtmann, Dagmar
Format: Online
Language:English
Published: Dove Medical Press 2010
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3121108/