Psychometric properties of the revised PSVT:R for measuring first year engineering students’ spatial ability
Psychometric properties of the revised PSVT:R for measuring first year engineering students’ spatial ability
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修订版 PSVT:R 的心理测量特性，用于测量工程一年级学生的空间能力
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
P. Imbrie
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作者：
Y. Maeda;So Yoon Yoon;Gyenam Kin;P. Imbrie
虽然有各种各样的空间测试，但普渡大学空间可视化测试：旋转可视化（PSVT:R）已被广泛用于预测学生在工程领域的成功。虽然已有许多使用PSVT:R的研究，但很少有人关注其在测量空间能力方面的心理测量特性及其与其他学术指标的关系。本研究的目的是(a)描述修订后的PSVT:R的项目和测试水平功能，以供一年级工程（FYE）学生使用；(b)调查其与学术相关变量的关系，以提供效度证据。大约2400名2010年和2011年秋季在中西部一所大型公立大学注册的应届生完成了修订后的PSVT:R。学生的学术相关变量也从大学档案中检索。对修订后的PSVT: rscore进行了各种统计分析，包括探索性和验证性因素分析以及项目分析。修正后的PSVT:R与其他学术变量之间的Pearson积矩相关系数也得到了。修订后的PSVT:R测量空间能力的单维子成分。克伦巴赫'swas 0.84。题目相对简单，测试为能力水平在平均水平或低于平均水平的学生提供了最精确的估计。修订后的PSVT:R分数与能力倾向测验分数之间存在弱至中度相关。修订后的PSVT:R是一个心理健全的乐器。虽然题目比较简单，但还是比较适合用来衡量初中生的空间可视化能力。
While various spatial tests are available, the Purdue Spatial Visualization Tests: Visualization of Rotations (PSVT:R) has beencommonly used to predict students’ success in the engineering field. While many studies that used the PSVT:R exist, little attentionhad been given to its psychometric properties in measuring spatial ability and relationships to other academic indices. The purposesof this study were (a) to characterize the item- and test-level functions of the Revised PSVT:R for the use of incoming First YearEngineering (FYE) students, and (b) to investigate its relationship to academic-related variables to provide validity evidence.Approximately 2400 FYE students enrolled in the fall of 2010 and 2011 in a large Midwestern public university completed theRevised PSVT:R. Students’ academic-related variables were also retrieved from the university archive. A variety of statisticalanalyses, including exploratory and confirmatory factor analyses as well as item analyses, were conducted on the Revised PSVT:Rscores. Pearson’s product–moment correlation coefficients between the Revised PSVT:R and other academic variables were alsoobtained. The Revised PSVT:R measures a unidimensional subcomponent of spatial ability. Cronbach’swas 0.84. Items wererelatively easy and the test provides the most precise estimate for students whose ability level is at or below average. Weak tomoderate correlations were found between the Revised PSVT:R scores and the aptitude test scores. The Revised PSVT:R is apsychometrically sound instrument. However, items are relatively easy, but it is still appropriate to measure spatial visualizationability of the FYE students.