Comparing the Effectiveness of Newer Linework on the Mental Cutting Test (MCT) to Investigate Its Delivery in Online Educational Settings
Bibliographic record
Abstract
The purpose of this study was to examine any differences in test scores between three different online versions of the Mental Cutting Test (MCT). The MCT was developed to quantify a rotational and proportion construct of spatial ability and has been used extensively to assess spatial ability. This test was developed in 1938 as a paper-and-pencil test, where examinees are presented with a two-dimensional drawing of a 3D object containing a cutting plane passing through the object. The examinee must then determine the cross-sectional shape that would result from cutting along the imaginary cutting plane. This work explored three versions of this test (the original and two adapted versions), administered online, to see if there were any differences on the versions regarding student performance. Versions differed in the linework quality displayed as well as shading shown on the surfaces. This study analyzed statics students’ scores on the three online versions of the MCT and on the original paper version of the MCT to identify which version of the test may be most optimal for administering to engineering students. Results showed that there was a statistically significant difference in students’ scores between multiple versions. Understanding which representations of the MCT items are most clear to students will provide insights for educators looking to improve and understand the spatial ability of their students.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.026 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".