The Validity of the Smart Management Strategy for Health Assessment Tool-Life (SAT-Life) in General Population

Abstract This study aimed to determine the reliability and validity of the life version of the Smart Management Strategy for Health Assessment Tool (SAT-Life) for the general South Korean population. We recruited 1,200 respondents using an equal-probability sampling method from March to May 2018. A life version of the Smart Management Strategy for Health Assessment Tool (SAT-Life) Cronbach’ α was used to determine the reliability of the 30-item SAT-Life. Comparisons with the Self-Reported Health Status (SRHS), Short Form-12 (SF-12), McGill Quality of Life Questionnaire (MQOL), Patient Health Questionnaire-9 (PHQ-9), and Satisfaction with Life Scale (SWLS) were conducted for establishing the discriminant and concurrent validity. Three sets of SAT-Life demonstrated a high reliability with good internal consistency (Cronbach’ α 0.86 for SAT-Core, 0.88 for SAT-Preparation, and 0.86 for SAT-Implementation). The total scores of the three SAT differentiated well between the before-maintenance group versus the maintenance group for achieving goals in the participants, and between the group with high depression score versus that with lower depression score in the general population. These SAT-Life scores were positively associated with health status and physical and mental quality of life (QOL). The scores of the SAT-Life were correlated with social support and spiritual well-being measured using the MQOL, and life satisfaction measured using SWLS. The 30-item SAT-Life had a satisfactory internal consistency and validity for the general South Korean population. Further validation should be carried out in a cohort study across different cultures, including an assessment of sensitivity.