This study will initially be comprised of medically ill inpatients at the NIH CC. We plan to expand the study to two other sites: the University of North Carolina's North Carolina Cancer Hospital (UNC) and Rhode Island Hospital (RIH). The total sample size will be 540 (180 per site). We will administer several short measures of suicide risk: the 20 asQ'em candidate items; a criterion standard Adult Suicidal Ideation Questionnaire (ASIQ); two questions which assess for suicidal behavior from a second criterion standard, the Beck Scale for Suicide Ideation (BSI); a brief depression screen, the Patient Health Questionnaire (PHQ-9); and an exploratory variable questionnaire, to all eligible inpatients aged 18 years and older. The ultimate goal of this project is the development of a validated risk of suicide screening instrument that can be administered rapidly by non-mental health clinicians to medical inpatients and in turn, connecting those in need with mental health services.