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Acad Med. 2013 Sep;88(9):1340-5. doi: 10.1097/ACM.0b013e31829e75e5.

A shortened version of the Clinical Research Appraisal Inventory: CRAI-12.

Author information

1
Institute for Clinical Research Education, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA. gwrobins@pitt.edu

Abstract

PURPOSE:

The original Clinical Research Appraisal Inventory (CRAI), which assesses the self-confidence of trainees in performing different aspects of clinical research, comprises 92 items. Completing the lengthy CRAI is time-consuming and represents a considerable burden to respondents, yet the CRAI provides useful data for evaluating research training programs. The purpose of this study is to develop a shortened version of the CRAI and to test its validity and reliability.

METHOD:

Trainees in clinical research degree and career development programs at the University of Pittsburgh's Institute for Clinical Research Education completed the 92-item CRAI between 2007 and 2012, inclusive. The authors conducted, first, exploratory factor analysis on a training dataset (2007-2010) to reduce the number of items and, then, confirmatory factor analyses on a testing dataset (2011-2012) to test the psychometric properties of the shortened version.

RESULTS:

Of 546 trainees, 394 (72%) provided study data. Exploratory factor analysis revealed six distinct factors, and confirmatory factor analysis identified the two items with the highest loadings per factor, for a total of 12 items. Cronbach alpha for the six new factors ranged from 0.80 to 0.94. Factors in the 12-item CRAI were strongly and significantly associated with factors in the 92-item CRAI; correlations ranged from 0.82 to 0.96 (P < .001 for each).

CONCLUSIONS:

The 12-item CRAI is faster and less burdensome to complete but retains the strong psychometric properties of the original CRAI.

PMID:
23886999
PMCID:
PMC3758379
DOI:
10.1097/ACM.0b013e31829e75e5
[Indexed for MEDLINE]
Free PMC Article
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