Psychometric properties of the Stress Control Mindset Measure in University students from Australia and the UK.

Introduction: Beliefs about the consequences of stress, stress mindsets, are associated with health and performance outcomes under stress. This article reports the development and examination of the psychometric properties of a measure of stress mindset: The Stress Control Mindset Measure (SCMM). The measure is consistent with theory on mindsets about self-attributes and conceptualizes stress mindset as the extent to which individuals endorse beliefs that stress can be enhancing. Methods: The study adopted a correlational cross-sectional survey design in two student samples. Undergraduate students from an Australian university (Sample 1, N=218) and a UK university (Sample 2, N=214) completed the SCMM and measures of health and well being outcomes. Results: Confirmatory factor analyses supported a four-factor structure and strict measurement invariance across samples(ΔCFI <.01). Reliability, convergent validity, discriminant validity, and concurrent validity of the overall SCMM was supported in both samples. Incremental validity was supported for most outcomes, accounting for significantly more variance (between 2.2% and 5.9%) in health and wellbeing outcomes than an existing measure. Conclusions: Current data provide preliminary support for the SCMM as a reliable and valid measure with good psychometric properties and theoretically consistent relations with health outcomes under stress. Findings provide initial evidence supporting the potential utility of the SCMM in future research examining relations between stress mindsets and health and performance outcomes.