Evaluating an intervention for homeless persons: results of a field experiment.

An intensive case management intervention for homeless persons was evaluated by random assignment of 202 cases (involving 213 adults and 70 children) to the intervention or a control group. Full follow-up data (4 interviews: at baseline and at 6-, 12-, and 18-month follow-ups) were available on 98 cases (105 adults and 37 children). The follow-up rates for the 2 groups were not significantly different. Based on 13 repeated measures analyses, there were 3 statistically significant linear time effects (indicating overall change across the follow-up period) and 3 linear Time x Condition interactions (indicating differential change over time for intervention vs. control participants). Regardless of condition, adult participants improved in terms of their experience of homelessness, as well as on physical health symptoms and stressful life events. Condition x Time interactions indicating positive intervention impact were observed on the quality of housing environments, stressful life events, and interviewer ratings of psychopathology.

Distinguishing homelessness from poverty: a comparative study.

To separate the characteristics of the homeless from those of the housed poor, 144 adults were randomly sampled from several sites, yielding 3 groups: the currently homeless (n = 59), the previously (but not currently) homeless (n = 31), and the never-homeless poor (n = 54). The homeless were significantly less likely to be receiving public benefits, were more likely to have a DSM-III (Diagnostic and Statistical Manual of Mental Disorders [3rd ed.; American Psychiatric Association, 1980]) diagnosis of substance abuse, showed higher levels of self-rated psychological distress and were more likely to be victims of recent domestic violence and to have been physically abused as children. The homeless did not differ from the comparison groups on DSM-III diagnosis of severe mental illness (schizophrenia or major affective disorder). physical health symptoms, and social support and social networks.

Homelessness in the United States. An ecological perspective.

This article presents an ecological perspective on homelessness that emphasizes the context in which homeless people live and the complex interactions between personal, social, economic, and service system resources that affect their well-being. The ecological perspective encourages researchers and program developers to assess the problems of homelessness at multiple levels of analysis, to view homelessness as a result of contextual factors that interact with individual and family vulnerabilities, and to assess carefully the social contexts in which researchers and program developers operate. Four ecological principles are described as a heuristic for research, intervention, and policy development. The implications of an ecological perspective for psychologists who wish to get involved in dealing with homelessness are discussed.