Examining the Internal Consistency Reliability and Construct Validity of the Authentic Happiness Inventory (AHI) among Iranian EFL Learners

Unlike other measures of happiness that have tended to capture current levels of happiness, the Authentic Happiness Inventory (AHI) (Peterson, 2005; Seligman et al. in The American Psychologist 60:410–421, 2005) assesses changes in happiness based on the creation of positive emotions (the pleasant life), engagement in activities that facilitate the utilization of one’s strengths (the engaged life), and serving a more worthwhile purpose than merely the self’s pleasures (the meaningful life). Nonetheless, there is little published data regarding the construct validation of the AHI. The present study, which is part of a larger research project in assessing the effectiveness of integrating happiness intervention programs in the foreign language teaching curriculum at private English institutes and universities in Iran, attempts an examination of the psychometric quality and the construct validation of the Persian version of AHI (hereafter AHI-PV) using data collected from 234 Iranian learners of English as a Foreign Language (EFL), mainly through employing the Exploratory Factor Analysis (EFA). The AHI was translated into Persian to ensure item comprehension by the Iranian participants. The results show that the AHI-PV enjoys a high internal consistency (alpha?=?.93). Further, having determined a ‘marvelous’ factorability of the present sample through the Kaiser-Meyer-Olkin (KMO) test of Sampling Adequacy (.94) and Bartlett’s Test of Sphericity (p?Principal Component Analysis (PCA) and the Scree test indicated that, in contrast to earlier findings, a four-factor solution provides a more parsimonious grouping of the items in the inventory. Having analyzed the items on the scale, we labeled the four factors as ‘Meaningful and Purposeful Life’, ‘Pleasures and Positive Emotions’, ‘Engagement in Life Activities’, and ‘Interpersonal Connectedness’, hence the alignment of these new factors to Seligman’s (2002) conceptualization of authentic happiness.