Treffer: Automated Scoring of Figural Tests of Creativity with Computer Vision.
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In this three‐study investigation, we applied various approaches to score drawings created in response to both Form A and Form B of the Torrance Tests of Creative Thinking‐Figural (broadly TTCT‐F) as well as the Multi‐Trial Creative Ideation task (MTCI). We focused on TTCT‐F in Study 1, and utilizing a random forest classifier, we achieved 79% and 81% accuracy for drawings only (r =.57;.54), 80% and 85% for drawings and titles (r =.59;.65), and 78% and 85% for titles alone (r =.54;.65), across Form A and Form B, respectively. We trained a combined model for both TTCT‐F forms concurrently with fine‐tuned vision transformer models (i.e., BEiT) observing accuracy on images of 83% (r =.64). Study 2 extended these analyses to 11,075 drawings produced for MTCI. With the feature‐based regressors, we found a Pearson correlation with human labels (rs =.80, 78, and.76 for AdaBoost, and XGBoost, respectively). Finally, the vision transformer method demonstrated a correlation of r =.85. In Study 3, we re‐analyzed the TTCT‐F and MTCI data with unsupervised learning methods, which worked better for MTCI than TTCT‐F but still underperformed compared to supervised learning methods. Findings are discussed in terms of research and practical implications featuring Ocsai‐D, a new in‐browser scoring interface. [ABSTRACT FROM AUTHOR]
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