June 24, 2017
June 24, 2017
June 28, 2017
Engineering Design Graphics
This paper will report on the effect of several demographic parameters in the development of spatial visualization skills on two different graphics courses at two different institutions. The demographic data is based on gender, race, previous CAD experience, and age; and the two offerings are a hybrid approach (2D and 3D) and a solid modeling approach (3D only), both required courses in second year engineering curriculum. The comparison utilizes visualization tests results as indicators of spatial skills, specifically results from PSVT:R, MCT, and MRT that have already been identified as having significant differences based in the content approach (i.e., 2D vs 3D). The concept of spatial visualization has received significant attention from practitioners and researchers in the community. Spatial visualization skills have been often linked to mental capabilities that indicate likeliness or aptitude to perform certain tasks or professions. Similarly, there are numerous reports on exercises that focus on developing, evaluating, and improving visualization skills, both, for development of imagination and creativity, as well as development of competencies directly related to technical fields such as engineering graphics and design. The latter fields are linked to STEM education, and there are test such as the Purdue Spatial Visualization Test - Rotations PSVT:R (Guay, 1977), the Mental Cutting Test (MCT) (Sorby, 1999) and Vandenberg’s Mental Rotation Test (MRT) (Shepard, 1971; Vandenberg, 1978). The objective of this study is to further compare the two different offerings, with the combined data from test results collected during two offerings of the courses. The first offering collected data with the PSVT:R test, and the second offering collected data with the three test aforementioned. Previous analysis indicated no significant difference in visualization skills between the two approaches when only the PSVT:R test was administered. Independent results from the second offering indicate some significant differences with some of the tests, with no general improvement in scores. It is expected that demographical analysis, as well as combined results analysis, will provide some insight on particular correlations between results.
Rodriguez, J., & Rodriguez, L. G. (2017, June), Effect of Demographics on the Spatial Visualization Skills in 2D and 3D Course Offerings Paper presented at 2017 ASEE Annual Conference & Exposition, Columbus, Ohio. https://peer.asee.org/28204
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