title: Psychometric evaluation and design of patient-centered communication measures for cancer care settings.
abstract: OBJECTIVE
  To evaluate the psychometric properties of questions that assess patient perceptions of patient-provider communication and design measures of patient-centered communication (PCC).
  
  
  METHODS
  Participants (adults with colon or rectal cancer living in North Carolina) completed a survey at 2 to 3 months post-diagnosis. The survey included 87 questions in six PCC Functions: Exchanging Information, Fostering Health Relationships, Making Decisions, Responding to Emotions, Enabling Patient Self-Management, and Managing Uncertainty. For each Function we conducted factor analyses, item response theory modeling, and tests for differential item functioning, and assessed reliability and construct validity.
  
  
  RESULTS
  Participants included 501 respondents; 46% had a high school education or less. Reliability within each Function ranged from 0.90 to 0.96. The PCC-Ca-36 (36-question survey; reliability=0.94) and PCC-Ca-6 (6-question survey; reliability=0.92) measures differentiated between individuals with poor and good health (i.e., known-groups validity) and were highly correlated with the HINTS communication scale (i.e., convergent validity).
  
  
  CONCLUSIONS
  This study provides theory-grounded PCC measures found to be reliable and valid in colorectal cancer patients in North Carolina. Future work should evaluate measure validity over time and in other cancer populations.
  
  
  CONCLUSIONS
  The PCC-Ca-36 and PCC-Ca-6 measures may be used for surveillance, intervention research, and quality improvement initiatives.
authors.affiliation: Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 101 E. Weaver Street, Suite 220, Carrboro, NC, 27510, USA; Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 1105-B McGavran-Greenberg Hall, CB#7411, Chapel Hill, NC, 27599-7411, USA. Electronic address: bbreeve@email.unc.edu.
authors.forename: Bryce B
authors.initials: BB
authors.lastname: Reeve
authors.affiliation: Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, CB #3270, Davie Hall, Chapel Hill, NC 27599-3270, USA. Electronic address: dthissen@email.unc.edu.
authors.forename: David M
authors.initials: DM
authors.lastname: Thissen
authors.affiliation: Division of Statistical and Data Sciences, RTI International, 3040 E. Cornwallis Road, Research Triangle Park, NC, 27709-2194, USA. Electronic address: cmb@rti.org.
authors.forename: Carla M
authors.initials: CM
authors.lastname: Bann
authors.affiliation: Division of Statistical and Data Sciences, RTI International, 3040 E. Cornwallis Road, Research Triangle Park, NC, 27709-2194, USA. Electronic address: nmack@rti.org.
authors.forename: Nicole
authors.initials: N
authors.lastname: Mack
authors.affiliation: Center for Communication Science, RTI International, 6110 Executive Blvd, Rockville, MD 20850, USA. Electronic address: ktreiman@rti.org.
authors.forename: Katherine
authors.initials: K
authors.lastname: Treiman
authors.affiliation: Department of Medicine, University of North Carolina at Chapel Hill, 170 Manning Drive, Chapel Hill, NC, 27599, USA. Electronic address: hanna_sanoff@med.unc.edu.
authors.forename: Hanna K
authors.initials: HK
authors.lastname: Sanoff
authors.affiliation: Fight Colorectal Cancer, 1414 Prince Street, Suite 204, Alexandria, VA, 22314, USA. Electronic address: nancy.roach@FightColorectalCancer.org.
authors.forename: Nancy
authors.initials: N
authors.lastname: Roach
authors.affiliation: Department of Psychology, Marquette University, 317 Cramer Hall, Milwaukee, WI, 53233, USA. Electronic address: brooke.magnus@marquette.edu.
authors.forename: Brooke E
authors.initials: BE
authors.lastname: Magnus
authors.affiliation: Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, CB #3270, Davie Hall, Chapel Hill, NC 27599-3270, USA. Electronic address: jasonhe@live.unc.edu.
authors.forename: Jason
authors.initials: J
authors.lastname: He
authors.affiliation: Public Health Research Division, RTI International, 3040 E. Cornwallis Road, Research Triangle Park, NC, 27709-2194, USA. Electronic address: lwagner@rti.org.
authors.forename: Laura K
authors.initials: LK
authors.lastname: Wagner
authors.affiliation: Public Health Research Division, RTI International, 3040 E. Cornwallis Road, Research Triangle Park, NC, 27709-2194, USA. Electronic address: munch@rti.org.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Moultrie
authors.affiliation: Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 101 E. Weaver Street, Suite 220, Carrboro, NC, 27510, USA. Electronic address: kdjack@email.unc.edu.
authors.forename: Kathryn D
authors.initials: KD
authors.lastname: Jackson
authors.affiliation: Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 101 E. Weaver Street, Suite 220, Carrboro, NC, 27510, USA. Electronic address: courtney.mann@unc.edu.
authors.forename: Courtney
authors.initials: C
authors.lastname: Mann
authors.affiliation: Public Health Research Division, RTI International, 3040 E. Cornwallis Road, Research Triangle Park, NC, 27709-2194, USA. Electronic address: lmac@rti.org.
authors.forename: Lauren A
authors.initials: LA
authors.lastname: McCormack
mesh_terms: D000328:Adult; D003142:Communication; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000523:psychology* / Q000628:therapy; D009657:North Carolina; D018802:Patient-Centered Care / Q000458:organization & administration*; D010465:Perception; D011594:Psychometrics / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
keywords: Patient-centered care; Patient-centered communication; Psychometrics; Questionnaire development