In this quasi-experimental study, we adopted writing practice of a daily log of gratitude to test two
hypotheses: A daily writing of a gratitude log will have positive effects on the grateful disposition and
on the feelings of happiness of elementary students. Two 4th grade classes from an elementary school
were selected to serve as an experimental and a comparison group(31 and 29 students each). Prior to
the experimental sessions, students in both groups completed a pretest which contained a gratitude
questionnaire and a happiness inventory that had four sub-factors of happiness, namely, self-esteem,
optimism, peer relationship, and perception of home environment. After a 4-week implementation period,
both groups completed the same scales as posttest. The experimental group students wrote two blessings
everyday during 10-minute morning sessions. The results revealed a strong support for both hypotheses, in
that the experimental group showed great increase in the grateful disposition and in the reported feelings
of happiness. The results were discussed in relations to the functional effectiveness of gratitude on the
students’ happiness. In addition, some practical implications to the educational settings were discussed.