1. Effects of supplemental services on students' motivation, engagement and academic achievement Open Access Author: Yang, Ming Title: Effects of supplemental services on students' motivation, engagement and academic achievement Graduate Program: Educational Psychology (MS) Keywords: supplemental servicepropensity score matching File: Download Yang_Ming_Final_draft_1110.pdf Committee Members: Matthew T Mc Crudden, Professor in Charge/Director of Graduate StudiesMatthew T Mc Crudden, Thesis Advisor/Co-AdvisorJames Clyde Diperna, Committee MemberP Karen Murphy, Committee Member
