This document summarizes research on the relationship between homework and test scores. It discusses how the research question guides a qualitative or quantitative study. A hypothetical quantitative study is proposed to compare test scores of students who do and do not complete homework. The study would use a group comparison design and control for factors like student characteristics and instruction. A qualitative study is also proposed to examine how homework may impact student interest and effort. The document also covers qualitative research methods, interview guides, and ensuring quality data collection.