- MASC-J demonstrated acceptable internal consistency, excellent test-retest reliability and acceptable discriminative ability (AUC 0.804) in adults.
- Adults with ASD scored significantly lower on the MASC-J than healthy controls, with increased overmentalising and absence-of-mentalising errors.
- MASC-J scores correlated with RMET in the total sample but not within groups; in ASD, scores related positively to estimated full-scale IQ.
CNS Neurosci Ther. 2026 Sep;32(9):e71131. doi: 10.1002/cns.71131.
ABSTRACT
AIMS: This study aimed to develop a Japanese version of the Movie for the Assessment of Social Cognition (MASC-J) and to conduct a preliminary evaluation of its reliability and validity in adults with autism spectrum disorder (ASD) compared with healthy controls (HCs).
METHODS: Thirty adults with ASD and 30 HCs completed the MASC-J, Reading the Mind in the Eyes Test (RMET), Autism-Spectrum Quotient, and Japanese Adult Reading Test. Internal consistency, test-retest reliability, partial convergent validity with the RMET, and discriminative ability using receiver operating characteristic analysis were examined.
RESULTS: MASC-J scores were significantly lower in the ASD group than in the HC group. The MASC-J showed acceptable discriminative ability (area under the curve = 0.804), acceptable internal consistency, and excellent test-retest reliability. In the total sample, MASC-J scores correlated with RMET scores, but this association was not significant within either group. In the ASD group, MASC-J scores were positively associated with estimated full-scale IQ. Overmentalizing and absence-of-mentalizing errors were more frequent in the ASD group, whereas undermentalizing errors did not differ between groups.
CONCLUSION: These findings provide preliminary support for the MASC-J as a measure of social cognition in Japanese-speaking adults with ASD.
PMID:42678293 | DOI:10.1002/cns.71131
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