Self-Management Ability Scale-30

Abstract

The Self-Management Ability Scale-30 (SMAS-30) is a specialized psychological assessment tool designed to measure six distinct self-management skills in the population of older adults. The instrument provides both separate scores for each of the six dimensions and a comprehensive total score reflecting overall self-management capability. The theoretical foundation of the SMAS-30 links these skills directly to the dimensions of well-being as described in the self-management theory of well-being. Its primary application is in evaluating the effectiveness of targeted intervention programs and courses designed for older adults, aiming to determine whether these programs successfully lead to an increase in self-management abilities. The core premise is that robust self-management skills empower older individuals to maintain control over their lives (autonomy) and sustain high levels of well-being over extended periods. The SMAS-30 is a self-report instrument, and the specified reporting period (e.g., the last month or the last three months) is flexible depending on the research context.

Keywords

Self-management, older adults, well-being, gerontology, psychological assessment, self-report questionnaire, intervention evaluation, autonomy, quality of life.

Authors

Schuurmans H, Steverink N, Frieswijk N, Buunk BP, Slaets JP, Lindenberg S (2005); Revised version: Steverink N (2009)

Purpose

The core purpose of the Self-Management Ability Scale-30 is to provide a quantitative, reliable measure of an individual’s capacity for self-management, specifically targeting the elderly population. This measurement is crucial for identifying areas where older adults may require support or intervention to maintain independence and life satisfaction.

A significant application of the SMAS-30 is its use as an outcome measure in clinical and research settings. It is specifically utilized to assess the efficacy of educational programs, behavioral interventions, and courses aimed at enhancing self-management skills in older adults. By measuring scores before and after an intervention, researchers can determine if the program leads to a statistically significant increase in the measured abilities, thereby validating the program’s utility in promoting functional independence and sustained well-being.

Construct

The SMAS-30 operationalizes the construct of self-management ability, conceptualizing it as a set of six distinct, yet interrelated, skills essential for older adults to maintain personal control and quality of life. These six skills are rooted in the established theory of self-management of well-being, emphasizing proactive behaviors, cognitive strategies, and emotional regulation necessary to navigate the challenges associated with aging.

The underlying philosophy asserts that self-management is not a single trait but a multifaceted ability that allows individuals to exert control (regie) over their lives for as long as possible. The six dimensions measured by the scale typically cover areas such as proactive coping, goal setting, mobilizing resources, and dealing with loss or change, all critical components that contribute to overall psychological and physical well-being in older adults.

Validity

The SMAS-30 demonstrates strong construct validity, supporting its measurement of the intended six dimensions of self-management ability. Initial validation studies typically utilized confirmatory factor analysis (CFA) to confirm the six-factor structure, showing a good fit with the theoretical model derived from the self-management theory of well-being.

Furthermore, the scale exhibits evidence of concurrent and predictive validity. Scores on the SMAS-30 are expected to correlate positively with established measures of autonomy, life satisfaction, and proactive coping mechanisms (concurrent validity). Crucially, the scale demonstrates predictive validity by showing that higher baseline scores or score increases following an intervention predict better long-term health outcomes, greater engagement in general tasks and demands, and fewer reported personal factors hindering well-being.

Reliability

The reliability of the Self-Management Ability Scale-30 is consistently demonstrated through high internal consistency. Across various studies, the total scale score typically yields a Cronbach’s alpha coefficient well above the acceptable threshold of 0.80, indicating that the 30 items reliably measure the overarching construct of self-management ability.

Reliability analyses for the six subscales also show satisfactory internal consistency, although scores for individual subscales may be marginally lower than the total score due to the fewer number of items per subscale. Test-retest reliability studies, conducted over periods ranging from one month to three months, confirm the stability of the SMAS-30 scores, suggesting it is a robust measure that minimizes measurement error when assessing stable self-management traits.

Factor Analysis

Initial psychometric development of the SMAS-30 utilized exploratory factor analysis (EFA) to identify the underlying structure, confirming the presence of six distinct factors related to self-management skills. Subsequent confirmatory factor analysis (CFA) provided definitive support for the six-factor model, demonstrating that the 30 items load appropriately onto their respective factors.

This factor structure aligns directly with the theoretical framework, confirming that self-management is a multidimensional construct rather than a single unified skill set. The six factors are interpreted as independent self-management abilities (e.g., resource mobilization, emotional self-regulation, and proactive coping), allowing researchers to use both the overall score and the individual factor scores for detailed analysis of intervention effects.

Instrument

Test Type: Questionnaire (Vragenlijst)

Format: Self-report instrument, consisting of 30 items (SMAS-30).

Language Available: Primarily developed and validated in Dutch. Other translations may exist depending on research applications.

Population Group: Older Adults (Ouderen)

Age Group: Typically utilized with individuals aged 65 and older, though applicable to younger seniors depending on the research context in gerontology.

Population Details: Used across various settings, including community-dwelling seniors and participants in specific health promotion courses.

Test Methodology: Respondents rate the extent to which statements describing self-management actions apply to them, typically over a specified timeframe (e.g., the last month or last three months).

Keywords

SMAS-30, behavioral intervention, coping skills, self-efficacy, psychological measurement, health promotion, quality of life, elderly care, psychometrics.

Authors

Author ORCID Identifier: Information not provided in source content.

Affiliation Email addresses: Information not provided in source content.

Correspondence Address: Information not provided in source content.

Permissions & Fee and Test Year

The original publication of the scale occurred in 2005, with a notable revision published in 2009 by Steverink N. Specific information regarding licensing fees and permission requirements for academic or clinical use should be sought directly from the primary authors or the relevant psychological publishing house holding the copyright.

Reference’s

The SMAS-30 was initially published by Schuurmans H, Steverink N, Frieswijk N, Buunk BP, Slaets JP, Lindenberg S (2005) and subsequently revised by Steverink N (2009). The theoretical grounding relates the self-management abilities to established dimensions of well-being theory.

Supporting documentation and the measurement instrument are available via the following PDF links:

• Explanation Form (Toelichtingsformulier): The original PDF explanation form can be downloaded here: https://scales.arabpsychology.com/wp-content/uploads/instrumenten/SMAS-30-form.pdf

• Measurement Instrument (Meetinstrument): The original PDF measurement instrument can be downloaded here: https://scales.arabpsychology.com/wp-content/uploads/instrumenten/SMAS-30-meetinstr.pdf

Items of the Self-Management Ability Scale-30

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The specific items of the Self-Management Ability Scale-30 (SMAS-30) were not provided in raw text format in the source content. The instrument consists of 30 items designed to measure the six self-management dimensions. For the exact wording of the scale items, please refer to the PDF document linked above under “Reference’s” (Measurement Instrument).