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Using LEGO to test children's ability to visualize and rotate 3D shapes in space:
Researchers at the University of California San Diego have developed a test that uses children’s ability to assemble LEGO pieces to assess their spatial visualization ability. Spatial visualization is the ability to visualize 3D shapes in one’s mind, which is tied to increased GPAs and graduation rates in STEM college students.
At the college level, a widely used assessment is the Purdue Spatial Visualization Test: Rotations, or PSVT:R, which is a 20-minute timed test consisting of a series of multiple-choice questions that are geared towards students 13 and older. Van Den Einde and Delson wanted to develop an assessment that would be more suitable and engaging for students at lower grade levels. They turned to LEGO, which was designed with that younger age range in mind and is familiar to many children. To pass the test, students have to assemble a set of LEGO pieces into a specific shape, such as a whale or a small plane, while only being given a picture of the final shape but no step-by-step instructions. The time it takes students to build the correct solution is the metric used for assessment.
[...] In order to validate the test, the researchers had students in two freshman engineering graphics courses take both the LEGO assembly test and the PSVT:R. Students took the tests both at the beginning and end of the quarter. During the course, they were trained with the Spatial Viz app. Test results show a statistically significant correlation between outcomes on the LEGO test and the PSVT:R.
(Score: 0) by Anonymous Coward on Monday June 22 2020, @06:09PM
That test never did a very good job of testing visualization. It's entirely possible to ace that section without the ability to visualize and without cheating. It tests the visual-spatial sketchpad, and there are different ways in which people manage to do it. Most people visualize, but there's some folks, myself included, that convert things over to motions or a series of directions and pass it like that.
One of the issues that crops up in assessment is when people are able to pass despite not having the ability that the test question is supposed to be measuring. A test item like that is worthless as it can't predictably measure the intended ability.