Conventional wisdom is a poor predictor of the relationship between discipline policy, student misbehaviour and teacher stress.

Will an effective discipline policy improve student misbehaviour and result in a reduction of teacher stress? It is commonly believed that student misbehaviour is a major cause of teacher stress, and that the degree of student misbehaviour is reflected in student suspension rates. Moreover, it is believed that student misbehaviour can be reduced by improving a school's discipline policy through the collaborative efforts of whole school communities. As a result of growing concern about student misbehaviour and teacher stress, a Whole School Approach to Discipline and Student Welfare programme was implemented throughout the Australian state of Victoria. This paper reports on the evaluation studies that were conducted to assess the effectiveness of the programme and examine the assumptions which underpinned its implementation. Data were obtained from 4,072 primary and secondary school teachers. Although longitudinal analyses suggested that the programme was effective in reducing teacher stress, there was no mean change in student misbehaviour. Structural equation analyses showed that there was little relationship between a school's discipline policy and the perceived level of student misbehaviour. It was also found that student suspension rates were not related to student misbehaviour, but could be predicted on the basis of a school's discipline policy and the self-esteem of teachers. Two and three wave causal analyses also demonstrated the problems associated with using cross-sectional research to support major policy decisions. Overall, these studies showed that there is little point in trying to reduce teacher stress by reducing student misbehaviour. Rather, it is more appropriate to develop a supportive organisational climate that enables teachers to cope with the student misbehaviour that confronts them.