Objective: The objective of this study was to obtain evidence on the internal structure of a scale on the adaptation to university life, the Student Adaptation to College Questionnaire (SACQ). It was completed by first-year students of a Peruvian university. A total of 557 students participated (53% of them women), and were evaluated collectively with the SACQ. Method: A confirmatory factor analysis was carried out to evaluate the different SACQ measurement models found in the previous studies. As a result of an inability to obtain a satisfactory adjustment (in addition to finding a significant amount of mis-specifications) the SACQ items were analysed using an exploratory factorial analysis with the method of maximum likelihood, as well as Promin rotation. Results: A short structure (27 items) of four factors (academic, institutional, social, and emotional-personal adaptation) was obtained, which was consistent with the original SACQ approach, as well as adequate reliability indicators. Conclusion: The psychometric properties were satisfactory. The theoretical and practical implications of the findings are discussed further.