This study investigated the effectiveness of Contingency Management (CM) and Systematic Desensitization (SD) on adolescent truant behaviour participants consist of one hundred and forty four students (72 male and 72 female) from four co-educational schools in Edo State of Nigeria. ANOVA was used to test the effectiveness among the independent variables (CM and SD) on truancy and CM was identified the most effective in the treatment of truancy than SD (p<.05). Based on this result the study advocated for the use of CM for the treatment of truancy
Keywords: Contingency Management, Systematic Desensitization And Truancy