Mills Britain A, Caetano Raul, Rhea Arianne E
UT Southwestern Clinical and Translational Alliance for Research (UT-STAR), UT Southwestern Medical Center, Dallas, TX, USA.
Eval Health Prof. 2014 Mar;37(1):71-82. doi: 10.1177/0163278713500303. Epub 2013 Aug 18.
The Clinical Research Appraisal Inventory (CRAI) is a 92-item measure covering 10 domains of research self-efficacy. A known behavioral antecedent, reliable and valid measures of self-efficacy represent a potentially useful tool in the evaluation of research training program efficacy. However, few formal psychometric studies of this instrument exist. Using exploratory factor analysis, we examine the CRAI's dimensional structure in a new sample of clinical research trainees. In contrast to the multidimensional solutions reported previously, CRAI responses in the present sample were unambiguously one-dimensional (as suggested by a dominant single Eigenvalue and parallel analysis). This discrepant finding may reflect sample differences in research experience, as unlike previous studies, participants had all already obtained a professional degree. The CRAI's dimensional structure may coalesce into a smaller number of factors as research experience is acquired, and investigators should be mindful of this possibility in future studies of the instrument.
临床研究评估量表（CRAI）是一个包含92个条目的量表，涵盖研究自我效能感的10个领域。自我效能感的一种已知行为前因、可靠且有效的测量方法，是评估研究培训项目效果的潜在有用工具。然而，关于该工具的正式心理测量学研究很少。我们使用探索性因素分析，在临床研究学员的新样本中检验CRAI的维度结构。与之前报告的多维解决方案不同，本样本中的CRAI反应明确为单维（由一个占主导地位的单一特征值和平行分析表明）。这一不同的发现可能反映了研究经验的样本差异，因为与之前的研究不同，参与者都已经获得了专业学位。随着研究经验的积累，CRAI的维度结构可能会合并为较少的因素，研究人员在该工具的未来研究中应注意这种可能性。
