Abstract
This chapter starts by introducing an economic concept in education called education production function. Then it establishes the critical quality dimensions of students' learning outcomes. Broadly, the literature on student learning outcomes were divided into two sections: college resources and student engagement. A conceptual framework drawn from the college impact models was developed. Four representative models were reviewed: Astin's I-E-O Model, Tinto's Theoretical Model of Drop-Out, Pascarella's General Model for Assessing Change, and Weidman's Model of Undergraduate Socialization. The theory behind these models is engrossed on the quality of students' experience in colleges and how it facilitates their academic achievement. Based on these models, a new conceptual model of college outcomes was developed that is simplified and more inclusive of variables encircling learning outcomes of college students.