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Supplementary Material from The matrix reasoning item bank (MaRs-IB): novel, open-access abstract reasoning items for adolescents and adults

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posted on 09.10.2019 by Gabriele Chierchia, Delia Fuhrmann, Lisa J. Knoll, Blanca Piera Pi-Sunyer, Ashok L. Sakhardande, Sarah-Jayne Blakemore
Existing non-verbal ability tests are typically protected by copyright, preventing them from being freely adapted or computerized. Working towards an open science framework, we provide 80 novel, open-access abstract reasoning items, an online implementation and item-level data from 659 participants aged between 11 and 33 years: the matrix reasoning item bank (MaRs-IB). Each MaRs-IB item consists of an incomplete matrix containing abstract shapes. Participants complete matrices by identifying relationships between the shapes. Our data demonstrate age differences in non-verbal reasoning accuracy, which increased during adolescence and stabilized in early adulthood. There was a slight linear increase in response times with age, resulting in a peak in efficiency (i.e. a measure combining speed and accuracy) in late adolescence. Overall, the data suggest that the MaRs-IB is sensitive to developmental differences in reasoning accuracy. Further psychometric validation is recommended.

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