The purpose of this study was to evaluate the psychometric evidence for Achievement Motivation and General Mattering scores among Latinx college students in Mexico and the United States based on degree of measurement invariance. Validating instruments in cross-cultural contexts is essential to ensure that psychological constructs are measured reliably across populations with distinct cultural experiences, such as family dynamics, schooling, mental health, and acculturation. A total of 505 participants, with 263 from Mexico and 242 from the United States, participated in the study (U.S. sample: 71.9% female, ages 18–57, M = 23.65; Mexican sample: 55.9% female, ages 15–56, M = 26.69). The results indicated that the Spanish version of the Achievement Motivation scale had partial strict invariance, and the General Mattering scale had metric invariance when used with these two groups of Spanish-speaking Latinx college students. This study highlighted the need of using accurate, trustworthy, and culturally sensitive measures to comprehend the psychological experiences of Latinx college students.
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