This two-phased project will develop a comprehensive, audio computer assisted self-administered interview social harm questionnaire (ACASI-SHQ) that will allow researchers to more easily identify and monitor social harms experienced by substance abusers participating in HIV-related trials. The ACASI-SHQ will (1) reduce the likelihood of socially desirable responding, (2) include items with high levels of specificity to increase the likelihood of identifying social harms (construct validity), and (3) utilize a self-interview format that will increase the likelihood of its adoption by HIV researchers. The investigators will then evaluate its feasibility, acceptability, and preliminary utility and construct validity in an ongoing HIV-related trial.