Pornthep Steannoppakao. (2000). The Effects of Training for Developing Water Conservation Attitude of Prathomsuksa Students. M.S. (Behavioral Science) Behavioral Science Research Institute. The main purposes of this researvh were to create and develop training program for Prathomsuksa students' attitude on water conservation, and for evaluating the training program The sample of this study were fifth grade students of Wat Plukesutha School in Lardkrabang district, Bangkok in the first semester of the 2000 academic year. Seventy three students were randomly sampling into two groups. A group of thirty seven students and thirty six students were randomly assigned into the experimental group and the control group respectively. The experimental group was trained using attitude on water conservation program. The control group was trained using "The Handbook on Activities and Materials for Affective Development in Elementary Level" for one hour a day for eight days. The design was randomized control group pretest-posttest design. The test on attitude on water conservation was employed before, after and one month afther training. The statistical analyses were t- test for dependent sample and different score including two-way analysis of variance ( Two-way ANOVA). The findings were as follows: 1. The attitude and behavior on water conservation of the experimental group after treatment and one month after treatment were significantly higher than before treatment and the control group at the .05 level. 2. The attitude on water conservation of female students, high academic achievement students, and high democratic child rearing was not significantly higher than those students of opposite characteristics From finding, found that teaching concepts on water conservation was not sufficient for behavior changes. This training program can be used with all group of students, especially the group that was high democratic child rearing | SWU | | BSRI |