Abstract
In this study, we developed the subjective vitality scale, Japanese version (SVS-J) to investigate the improvement effect exerted by environment on psychological vitality. First, we translated the original SVS questionnaire into Japanese. Second, to develop the SVS-J, we conducted two experiments (exp. 1 and exp. 2) involving 168 participants. In exp. 1, 123 participants were exposed to a video of a forest environment for approximately 15 minutes in a room (off-site). Participants completed the SVS-J pre- and post-exposure. Then, we examined the reliability and construct validity of the data. Subsequently, in exp. 2, 45 participants were exposed for approximately 30 minutes to an on-site forest environment; they completed the SVS-J and other questionnaires pre- and post-exposure. Finally, we examined the criterion-related validity of the data by evaluating the correlation between the SVS-J and other questionnaires. Results verified that the SVS-J is valid and reliable scale and is therefore suitable for practical use.
