June 15, 2014
June 15, 2014
June 18, 2014
Engineering Design Graphics
24.982.1 - 24.982.8
Pictorial Visual Rotation Ability of Engineering Design Graphics StudentsThe ability to rotate visual mental images is a complex cognitive skill. It requires thebuilding of graphical libraries of information through short or long term memory and thesubsequent retrieval and manipulation of these towards a specified goal. Thedevelopment of mental rotation skill is of critical importance within engineering designgraphics. It promotes the ability to comprehend complex engineering drawings,communicate design ideas through freehand sketching and develop CAD modelingstrategies. Considering this, exploratory development research was conducted in effortsto investigate student ability levels measured by parallel pictorial items of an existinggeometric mental rotation measure. Images of rotated general consumer objects werecaptured and composed in a corresponding format to that of the Purdue SpatialVisualization Test: Visualization of Rotations. An expert review panel fromengineering/technical graphics was convened to analyze consistency of format, rotation,and solutions of the corresponding pictorial items instrument. A group of post-secondaryEngineering Design Graphics students were randomly administered the Purdue SpatialVisualization Test: Visualization of Rotations where the remainder of the group wasadministered the pictorial item instrument. The developed pictorial instrumentrepresented orientation familiarity while geometric forms in the Purdue SpatialVisualization Test: Visualization of Rotations represented unfamiliar structures.Comparative analyses were conducted and differences identified pertaining to studentabilities in mental rotation of geometric forms and pictorial visual rotation abilities.Summary statistics, frequency analyses, and hypothesis testing uncovered that studentmental rotation abilities of geometric forms collectively exceeds that of ability ofpictorial rotation ability.
Ernst, J. V., & Lane, D., & Clark, A. C. (2014, June), Pictorial Visual Rotation Ability of Engineering Design Graphics Students Paper presented at 2014 ASEE Annual Conference & Exposition, Indianapolis, Indiana. https://peer.asee.org/22915
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