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Shortening the work preference inventory for use with physician scientists: WPI-10

Robinson, GFWB and Switzer, GE and Cohen, ED and Primack, BA and Kapoor, WN and Seltzer, DL and Rubio, DMG (2014) Shortening the work preference inventory for use with physician scientists: WPI-10. Clinical and Translational Science, 7 (4). 324 - 328. ISSN 1752-8054

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The Work Preference Inventory (WPI) is a four-factor, 30-item measure that assesses work motivation. Used to help individuals choose appropriate career paths, its length contributes to response burden, especially when combined with other measures. We aimed to develop a shortened, valid, and reliable version of the WPI. Trainees at the University of Pittsburgh's Institute for Clinical Research Education completed the 30-item WPI between 2007 and 2012. We conducted exploratory and confirmatory factor analyses to reduce the number of items. Of the 402 eligible trainees, 371 (92%) provided data for the exploratory factor analysis (EFA), and 134 of the eligible 144 trainees (93%) provided data for the confirmatory factor analysis (CFA). EFA revealed four factors that were roughly equivalent to those of the original. CFA used the three items with the highest loadings on each factor, with two items removed due to low loadings and R-squareds, resulting in a 10-item scale. Cronbach's alpha for each of the four factors ranged from 0.68 to 0.76. Factors in the WPI-10 were strongly and significantly associated with factors in the original WPI, indicating strong validity of the shortened measure. The WPI-10 shows evidence for similar validity and reliability to the original instrument while reducing respondent burden. © 2014 Wiley Periodicals, Inc.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Robinson, GFWB
Switzer, GEgswitzer@pitt.eduGSWITZER
Cohen, ED
Primack, BAbprimack@pitt.eduBPRIMACK
Kapoor, WNwnk1@pitt.eduWNK1
Seltzer, DL
Rubio, DMGdmr18@pitt.eduDMR18
Centers: Other Centers, Institutes, Offices, or Units > Center for Research on Media, Technology, and Health
Date: 1 January 2014
Date Type: Publication
Journal or Publication Title: Clinical and Translational Science
Volume: 7
Number: 4
Page Range: 324 - 328
DOI or Unique Handle: 10.1111/cts.12132
Schools and Programs: School of Medicine > Medicine
School of Medicine > Pediatrics
Refereed: Yes
ISSN: 1752-8054
PubMed Central ID: PMC4090299
PubMed ID: 24405561
Date Deposited: 31 Jul 2014 20:34
Last Modified: 04 Feb 2019 15:57


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