This document outlines a proposed research study that aims to examine the relationship between childhood family environment and later drug addiction. The study would use a qualitative design with 200 participants recruited from drug rehabilitation centers and correctional facilities across 10 cities. Participants would complete an open-ended interview about their upbringing, which researchers would code into categories related to family influences, social influences, family relations, and other adversities. Data analysis would include reliability testing and a chi-square test to examine correlations between childhood experiences and drug addiction. Obtaining IRB approval would ensure ethical treatment of participants.