Table 2.

Quantitative data collection.

Instrument	Psychometric information
Beck Hopelessness Scale [40]	This 20-item scale measures motivation, expectations, and feelings about the future (internal consistency alpha=.93)
Community Integration Scale [37]	This 11-item scale measures behavioral (eg, participation in activities) and psychological (eg, sense of belonging) aspects of community integration. This scale was used extensively in the Chez Soi/At Home study [37], but psychometric properties have yet to be reported
Education, Employment, and Income Questionnaire	This 13-item questionnaire assesses education, employment, and income. We developed this questionnaire for the study
Mentor Evaluation Questionnaire	This 10-item questionnaire assesses mentor effectiveness. It will be completed at month 24 by those in the intervention group. We developed this questionnaire for the study in collaboration with our community partners
Modified Colorado Symptom Index [42]	This 14-item scale measures the presence and frequency of psychiatric symptoms experienced in the past month (internal consistency alpha=.90 to .92)
Modified Engulfment Scale [41]	This 30-item scale measures the degree to which an individual’s self-concept is defined by their experience of homelessness (internal consistency alpha=.91). We have adapted the scale for this study, substituting experience of homelessness for illness
Perceived Housing Quality [43]	This 7-item scale measures participants’ perception of housing choice and quality. This scale was used extensively in the At Home/Chez Soi study [37], but psychometric properties have yet to be reported. We have shortened it from 10 items (At Home/Chez Soi) to 7 relevant items
Rosenberg Self-Esteem Scale [38]	This 10-item scale measures global self-worth (internal consistency alpha=.77 to .88)
Social Connectedness Scale–Revised [39]	This 20-item scale measures belongingness—the degree to which an individual feels connected to others (internal consistency alpha=.92)