| Educational Testing Service. Surface Development Test---VZ3. Kit of Reference Tests for Cognitive Factors, (1976). |
....The experiment took place on the Carnegie Mellon University campus. Upon their arrival, participants were asked to complete the Educational Testing Service Surface Development Test VZ3, an instrument to measure ability for mental manipulation of 2 dimensional landmarks into 3 dimensions [4]. Participants were shown several line drawings (see Figure 3) and were required to visualize how the items depicted might be folded to form a 3 dimensional shape. This particular test was chosen because the posttest (described below) draws upon similar cognitive abilities [3] Data from ....
Educational Testing Service. Surface Development Test---VZ3. Kit of Reference Tests for Cognitive Factors, (1976).
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