-47 The null hypothesis was rejected since the t ratio 3.145 was significant at the .01 level. Table I shows the pre- and posttest means and standard deviations for the twenty-five classes. Nineteen out of twenty-five teachers showed an increase in mean on the posttest. Two teachers indicated no change and four teachers showed decrease in mean. The range of pretest means went from 24.2632 to 36.4643 while the posttest ranged from 24.5500 to 40.2143. The results of this questionnaire supported an affirmative answer to the question posed in the purpose of the study: Did the use of these skills by teachers have any effect on student attitudes or learning? The significant increase indicated that students rated their teachers higher on the posttest, indicating that they observed a change in behavior following use of the module. Hypothesis II H 2: There is no significant difference between the total even scores of the experimental groups and control groups on the observation instrument.