Formal Education has been recognized as a dynamic instrument of change in Nigeria and today there is increasing awareness and quest for secondary and higher education. However, under achievement especially in compulsory, core school subjects (Mathematics and English)in secondary school have been a problem. This problem has been traced to poor study habit and adjustment in schools. This book therefore addresses relationship among student adjustment, study habit and academic achievement with the aim of determining if student adjustment predicts achievement better than study habit. It considers...