2018 Volume 16 Issue 2 Pages 103-109
The purpose of this study was to examine the reliability and validity of newly developed questionnaire to assess the burden expressive suppression for Japanese (J-BES) (Hatta et al., 2018). Reliability was assessed by the comparison of responses of J-BES between 2017 and 2018 of the same population and checked whether the factor structures are the same to those of 2017. Validity assessment was conducted firstly by examining of the correlation between scores of J-BES and the executive function tests (EF: D-CAT, Stroop test). Further, validity was compared using daily living behavior items related to EF for the high and the low score groups based upon subject's J-BES score by a median value whether there is a difference. Factor analyses of J-BES using two different populations revealed that both consisted of same factors and re-administration of one year later showed no correlation. Correlations between J-BES and EF tests were low and further high and low J-BES groups showed non-significant difference in EF test scores. These findings suggest low validity of the J-BES. However, possible reason of the discrepancy from previous study (Niermeyer, Franchow, & Suchy, 2016) might be participants' difference. Previous study relied mainly on young females but 40-80 years old community-dwellers were the participants in this study. Further studies are indispensable before concluding that J-BES is not worthy of use with low reliability or validity.
