The gratitude intervention used in this study seems to
be an effective intervention for well-being enhancement
in children and adolescents low in PA. Psychologists
should therefore stay sensitive to PA as a moderator.
Questions remain, however, if other variables moderate
this gratitude intervention in youth. Children and
adolescents low in PA who received the gratitude
intervention, compared with a control group, reported
more gratitude and PA. Given these findings, PA
might be a key variable in gratitude research and
practice in youth