PMID- 15841895 OWN - NLM STAT- MEDLINE DCOM- 20050510 LR - 20191210 IS - 1098-3015 (Print) IS - 1098-3015 (Linking) VI - 8 IP - 1 DP - 2005 Jan-Feb TI - Development and initial validation of an instrument to measure physician-pharmacist collaboration from the physician perspective. PG - 59-66 AB - OBJECTIVE: Using a conceptual model of collaborative working relationships between pharmacists and physicians, a measure for physician-pharmacist collaboration from the physician perspective was developed. The measure was analyzed for its factor structure, internal consistency, construct validity, and other psychometric properties. METHODS: An initial 27-item Physician-Pharmacist Collaboration Instrument (PPCI) was developed to assess seven themes about professional relationships using Likert scales. The PPCI was mailed to a random sample of 1000 primary care physicians. Principal component analysis was used to assess the structure and uncover underlying dimensions of the initial instrument. Items were evaluated for inclusion or exclusion into a refined instrument. Internal consistency was assessed by calculating Alpha coefficients for each identified factor. Convergent validity was assessed using Spearman correlations between the identified factors and a previous measure of collaborative care. After measure refinement, confirmatory factor analysis was used to evaluate the fit of both versions of the instrument. RESULTS: Three hundred forty usable surveys were returned for a response rate of 34%. Almost 70% of the respondents were male with a mean age of 45.8. A majority were family practice physicians (72.1%) in private practice (67.3%). Three unique factors were identified during principal component analysis and utilized in a confirmatory factor analysis. Both a full and a 14-item reduced model were constructed and tested. Cronbach's alpha for the three factors of the full model ranged from 0.91 to 0.97, while the reliability for the reduced model ranged from 0.86 to 0.96. Comparative fit indexes of 0.97 and 0.98 were obtained, indicating good fit for the models. CONCLUSIONS: The results indicate good reliability and validity of the refined (14-item) PPCI. This instrument can be useful as a research tool for assessment of the physicians' perspective about a physician-pharmacist relationship. Further research is warranted to examine if the extent of relationship development, as measured with the PPCI, can affect patient care outcomes. FAU - Zillich, Alan J AU - Zillich AJ AD - Purdue University School of Pharmacy and Pharmacal Sciences, Department of Pharmacy Practice, Indianapolis, IN 46202-2879, USA. azillich@purdue.edu FAU - Doucette, William R AU - Doucette WR FAU - Carter, Barry L AU - Carter BL FAU - Kreiter, Clarence D AU - Kreiter CD LA - eng GR - 1R01-HL069801-01A1/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PT - Validation Study PL - United States TA - Value Health JT - Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research JID - 100883818 SB - IM MH - *Attitude of Health Personnel MH - Certification MH - Communication MH - *Cooperative Behavior MH - Factor Analysis, Statistical MH - Family Practice/education/organization & administration MH - Female MH - Health Knowledge, Attitudes, Practice MH - Humans MH - Internal Medicine/education/organization & administration MH - *Interprofessional Relations MH - Iowa MH - Male MH - Middle Aged MH - Models, Psychological MH - Pediatrics/education/organization & administration MH - Pharmacists/*psychology MH - Physicians/*psychology MH - Primary Health Care/organization & administration MH - Professional Role MH - Psychometrics MH - Statistics, Nonparametric MH - Surveys and Questionnaires/*standards MH - Trust/psychology EDAT- 2005/04/22 09:00 MHDA- 2005/05/11 09:00 CRDT- 2005/04/22 09:00 PHST- 2005/04/22 09:00 [pubmed] PHST- 2005/05/11 09:00 [medline] PHST- 2005/04/22 09:00 [entrez] AID - S1098-3015(10)60244-6 [pii] AID - 10.1111/j.1524-4733.2005.03093.x [doi] PST - ppublish SO - Value Health. 2005 Jan-Feb;8(1):59-66. doi: 10.1111/j.1524-4733.2005.03093.x.