This study investigated the effectiveness of Rational Emotive Behaviour Therapy (REBT) in the attitudinal change of senior secondary school adolescents towards examination malpractice. To guide this study, two research questions were raised and two hypotheses formulated. The study, a pre-test, post-test non-equivalent control group quasi experiment. A sample of 15 senior secondary school students participated in the study. A twenty four- item Examination Malpractices Perception Questionnaire (EMPQ) adopted from Aluta and Aluede (2006) was revalidated and administered on the sample to collect data for study. The internal consistency of instrument had a Cronbach Alpha value of 0.89, data collected were analyzed using t-test and mean score, the hypothesis were tested at 0.05 level of significance. The result revealed statistically significant in attitudinal change of participants towards examination malpractice in the treatment group. It could be concluded that rational emotive behaviour therapy (REBT) is an effective method for the attitudinal change of its recipient towards examination malpractice. Some recommendations were made, that measures of examination anxiety could be used by counselors to identify students high on examination anxiety so that preventive or proactive counseling therapies could be administered on them before sitting for an examination. Counselors should administer REBT on students to reduce examination malpractice.Keywords:
Effectiveness, rational emotive behaviour therapy, attitudinal change, Adolescents, examination malpractice, anxiety.