Self-esteem posters were displayed as a reinforcement of the lessons. Both groups were exposed to the posters due to the alternating daily teaching schedule of the second grade teachers. Excitement and fun filled the air when the puppet Yes-Yes, the interactive video, and class activities were used. It is very likely that comments and stories about the lessons were told to the non-treatment class at recess time. This could have resulted in the contamination of the program, thus causing the non-treatment scores to increase.
Further research is needed to evaluate the program using children in the first and third grades.
Expanded research, perhaps using students from several schools, is also a possible direction for further study. A larger group of subjects would increase the power of the test and the likelihood of receiving higher levels of significance in the six self-esteem clusters. Recommendations of directions for future research were detailed in the following paragraphs. As indicated in this research, simply dividing the classes according to an equal number of males and females and balanced GPA is not enough. The researcher recommends that the groups be randomly selected to insure a better balance between the treatment and non-treatment classes.