The Education Quality Agency has the function of comprehensively evaluating schools and classifying them into one of four categories according to their performance: High, Medium, Medium-Low, and Insufficient. This evaluation considers the performance of the establishments in academic indicators, such as the Simce score, and in non-academic indicators. These results are adjusted for the variables related to the context of educational establishments, using a statistical model from the school effectiveness literature and a set of variables that can capture these components. This study reviews the feasibility and relevance of including variables aggregated by the level of establishment. Regarding feasibility, the average education of the mother of the students is used as an alternative for the added variable, using the information provided by various institutions of the system to generate this variable. Regarding the conceptualization of these variables, it is pertinent to consider them in the classification of schools, since they are related to information on the socioeconomic composition of the establishment, the climate of the classrooms, expectations, or the peer effect among students. Likewise, this type of variable is relevant to include in the statistical model, given that it turns out to be one of the variables with the greatest weight in the model.
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