This study was conducted to establish the influence of stress arising from motivation on professional effectiveness of secondary school teachers in Cross River State. The study adopted an ex-post facto design. Stratified random sampling technique was used to select sixty (60) schools out of two hundred and thirty (230) public secondary schools, while random sampling was used to select six hundred (600) teachers. Research data were collected through the use of 2 sets of self-developed and validated questionnaire titled: Motivation Inventory (MOI) and Professional Effectiveness Questionnaire (PEQ). MOI consisted of 21 items Likert-type scale with a alternative responses (very stressful, stressful, less stressful, not stressful). PEQ was a 28 items Likert-type scale with 4 alternative responses (very effective, effective, ineffective, less effective and has submits such as lesson presentation, use of instructional aids, classroom management, evaluation of students, learning motivation, supervision of co-curricular activities and professional/personal qualities. Both instruments has reliability index of 0.81 and 0.87 significance. Result obtained showed a significant influence of stress arising from (motivation on lesson presentation, use of instructional aids, classroom management and evaluation of students, supervision of co-curricular activities). Based on the finding, it was recommended among others that teachers should learn how to manage stressful situations by use of self-talk technique which enables an individual emit self-statements that may prompt coping behaviour
Keywords: Cross River State, Motivation, Stress, Teacher, professional effectiveness
