The revised Educational Context Perception Questionnaire (ECPQ II) (du Mérac, 2016 and 2017) is used to assess five dimensions of the students’ classroom perception: Mutual appreciation, Discrimination, Didactics, Cohesion and Participation. Bronfenbrenner’s (1979) ecological theory served as a guide for the definition of the research process and the identification of dimensions to explore. The aim of the present study was to analyze the psychometric properties of the ECPQ II intended for first-grade secondary schooling. The 26-item version of the ECPQ II was administered to a sample of 2029 students, enrolled in lower secondary schools (grades 6-8) in Rome. An Exploratory Factor Analysis (EFA) was applied and the factor model structure was tested for model fit using Confirmatory Factor Analysis (CFA) and Structural Equation Modeling (SEM). The five-factor model showed a good fit to the data and had good reliability. The current research confirmed the factor structure of the measure and showed that the ECPQ II, adapted to assess the first-grade secondary schooling, has supportive psychometric properties of validity and reliability.