This study examines the hypothesis that teachers' perceptions of the decision participation may predict their teaching efficacy and job satisfaction. It examines data obtained from 197 secondary school teachers from 6 secondary schools to identify how teachers' perception of the decision participation varies, and the extent to which this predict teaching efficacy and job satisfaction. The results obtained from correlation and multiple regression analyses indicated that decision participation factors are positively related to teaching efficacy and job satisfaction. The findings show that decision participation should be supported to promote teaching efficacy and job satisfaction of teachers in schools.