Validation of a general mental health self-efficacy assessment tool.

ABSTRACT

The aim of this study was to assess the validity of a 14-item mental health self-efficacy scale developed to assess the effectiveness of the Road to Mental Readiness (R2MR) - a program aimed at improving the well-being and mental health of Canadian Armed Forces (CAF) personnel. The validity of the scale was assessed through an analysis of data collected as part of a pilot study and a larger group randomized control trial (GRCT) on the effectiveness of R2MR administered to CAF noncommissioned member recruits during basic training. Using data collected for the pilot study (N = 276), an initial review of items indicated a need to eliminate two redundant items and two items that were weakly correlated with other scale items. A parallel analysis and exploratory factor analysis (EFA) conducted on the resulting 10-item scale pointed to a one-factor model with all items loading satisfactorily. Using data from the GRCT (N = 1962), a confirmatory factor analysis (CFA) was conducted to further assess the revised scale. This CFA suggested good model fit (Root Mean Square Error of Approximation of .07 and Standardized Root Mean Square Residual of .06). The revised scale had an alpha of .88, was very strongly correlated with the full scale (r = .97, p < .001), and significantly predicted perceived control and self-efficacy regarding accessing mental health care and intention to access care.