Determine if the Patient Health Questionnaire (PHQ-9) is a valid and reliable measure compared to screening tool (BDI) to identify depression in elderly Korean Americans

Determine if the Patient Health Questionnaire (PHQ-9) is a valid and reliable measure compared to screening tool (BDI) to identify depression in elderly Korean Americans

Assumptions: Clarify aspects of the study that are believed but cannot be demonstrated to be true. Only include assumptions critical to the meaningfulness of the study. Describe the reasons why the assumption(s) was (were) necessary in the context of the study. The purpose of this study is to determine if the Patient Health Questionnaire (PHQ-9) is a valid and reliable measure compared to screening tool (BDI) to identify depression in elderly Korean Americans.