Psychometric Properties of the Dutch Version of the Self-Sufficiency Matrix (SSM-D)

Abstract

Measuring treatment outcomes can be challenging in patients who experience multiple interlinked problems, as is the case in public mental health care (PMHC). This study describes the development and psychometric properties of a Dutch version of the self-sufficiency matrix (SSM-D), an instrument that measures outcomes and originates from the US. In two different settings, clients were rated using the SSM-D in combination with the Health of the Nation Outcome Scales (HoNOS) and the Camberwell assessment of need short appraisal schedule (CANSAS). The results provided support for adequate psychometric properties of the SSM-D. The SSM-D had a solid single factor structure and internal consistency of the scale was excellent. In addition, convergent validity of the SSM-D was indicated by strong correlations between HoNOS and CANSAS, as well as between several subdomains. Further research is needed to establish whether the results presented here can be obtained in other PMHC settings.

A multimodal day treatment program for multi-problem young adults: study protocol for a randomized controlled trial

“…Self-sufficiency will be measured with the Dutch version of the Self-Sufficiency Matrix (SSM-D), based on the American version of the SSM [84] and adapted to, and validated for, the Dutch population [39, 85, 86]. Self-sufficiency is being able to create an acceptable level of functioning on the important domains of life [87].…”

“…GLM holds that recidivism can be diminished by focusing on the development of the personal identity and the improvement of the wellbeing of offenders. Self-sufficiency is a useful concept to measure strengths and needs specifically in youngsters during emerging adulthood, since it incorporates all the important life domains in which they face developmental tasks such as finding work or school and becoming financially independent [38, 39]. The degree to which young adults successfully complete the developmental tasks is found to be related to their wellbeing [38].…”

“…According to Weaver and Campbell [31] it is important to take a broader perspective than focusing solely on recidivism as an outcome, to obtain a better understanding of “what works.” Therefore, our second primary outcome measure is self-sufficiency. Self-sufficiency involves the ability of an individual to attain an acceptable level of functioning on various life domains (e.g., finances, mental health, social support, addiction) [39]. This is a very relevant outcome measure in our sample, since the different domains of the self-sufficiency concept converges with the heterogeneity of problems of the young adults in our sample.…”

“…This is a very relevant outcome measure in our sample, since the different domains of the self-sufficiency concept converges with the heterogeneity of problems of the young adults in our sample. The instrument measuring self-sufficiency is specifically developed for “ patients who experience multiple interlinked problems ” (p. 583) [39]. …”

Psychometric properties of the self‐sufficiency matrix among homeless and vulnerably housed individuals and families

“…The SSM is a measure of self‐sufficiency across a number of life domains. The groundwork for the SSM was conducted by Pearce et al (1996) and was extended by the Snohomish County Self‐Sufficiency Task Force in 2004, by transforming the measure into a multidimensional matrix aimed to measure client self‐sufficiency (Fassaert et al, ). The level of self‐sufficiency is determined by the individual's or family's ability to provide for oneself within each SSM domain without professional help.…”