The main purpose of this study is to determine whether school/student, classroom/student, teacher/student ratio, and the Human Development Index (I.G.E.) rates by province predict a province's total 6th and 7th grade Elementary School Proficiency Exam (SBS) scores. To determine the relationships between the province's total 6th and 7th grade SBS scores and the predictor variables (school/student ratio by province; classroom/student ratio by province; teacher/student ratio by province; I.G.E. rates by province), multiple regression analysis was performed. The results show that in the order of importance; I.G.E. rates by province, teacher/student ratio by province, school/student ratio by province, and classroom/student ratio by province are able to predict province's total 6th and 7th grade SBS scores.