The Reading the Mind in the Eyes Test for adults: A refined version in Spanish.

Objective: The Reading of the Mind in the Eyes Test (RMET) is widely used to assess theory of mind, but its validity has recently been questioned. This study aimed to present a refined Spanish version of the test and examine its psychometric properties.

Method: A total of 1,185 participants from Colombia completed the Spanish RMET. Exploratory and confirmatory factor analyses were conducted to examine its internal structure. Item response theory was applied to evaluate item quality. A test-retest analysis was performed, and standardization norms were developed for urban Colombian adults.

Results: A refined 24-item version (RMET-24) is proposed, retaining items from the original 36-item test. Twelve items were excluded due to poor discrimination and evidence of guessing, as indicated by item response theory. The RMET-24 showed a unifactorial structure with suitable difficulty and discrimination indices, adequate test-retest stability, and satisfactory reliability. Scoring norms for the Colombian sample were established using linear regression.

Conclusions: The RMET-24 offers improved psychometric properties over the original version. Its refined indices make it appropriate for clinical populations. While suitable for neuropsychological assessments, future updates should consider incorporating color stimuli. (PsycInfo Database Record (c) 2025 APA, all rights reserved).