Measuring spatial ability – Why the projection method matters in the PSVT:R mental rotation tasks

Spatial ability is an important component of mathematical competence. There are multiple ways to represent three-dimensional figures in a two-dimensional way. This paper reports a study that systematically compared the effect of the projection method used in a validated questionnaire (PSVT:R) on performance in conducting mental rotations. It was found that accuracy and efficiency was lower when items were presented in isometric projection as compared to a trimetric or oblique parallel projection, and this was the case for a sample of Grade 6 students as well as Grade 12 specializing in mathematics. Implications for research and practice are discussed.

ISBN:978-0639821542

Publication year:2019

Accessibility:Closed