Development and preliminary psychometric properties of Mental Health Promotion Scale

Abstract

Abstract Background There is no valid and reliable scale for assessing mental health promotion ability for adults in Turkish language. The purpose of this study was to develop a scale to mental health promotion ability for adults and to test the validity and reliablity of this scale. Methods This methodological study was conducted in Istanbul over the period October 2016- May 2018. The three rounds of the Delphi study were cunducted to develop the items of the scale and to determine the content validity. Thirty- three experts were participated in the Delphi study. A convenience sample of 452 adult people was recruited. The scale was tested for construct validity with Exploratory Factor Analysis (EFA), after which the scale’s reliability was evaluated for item-total correlations using Pearson’s correlation analysis and for internal consistency with Cronbach’s Alpha. Results At the end of the first Delphi round, 160 items were compiled. Experts reached consensus on 93 items of scale at the end of the third Delphi round. In the first EFA, twenty two factors with eigenvalues greater than 1 explained 65.2% of the total variance. Items with factor loadings of less than .30 and those that appeared in more than one factor with differences of less than %10 were removed from the scale one by one and the analysis was repeated. In the last EFA of the 47-item scale, twelve factor was found with an eigenvalue greater than 1 that explained 64.3% of total variance. The scale’s item-total correlations ranged between .36 - .62 and Cronbach’s coefficient alpha was calculated to be .93. Conclusions This scale was found to be valid and reliable. It can be used to assess the mental health promotion ability of adults who native Turkish speaker. Key messages The Mental Health Promotion Scale has been found to be valid and reliable. The Mental Health Promotion Scale can be used to assess of mental health promotion ability for adults.