The study examines the extent to which competency-based curriculum factors predict the achievement of effectiveness among Middle Basic Education pupils in Abuja Municipal Area Council (AMAC) of the Federal Capital Territory, Abuja. In this regard, the researcher formulated three research questions along with three null hypotheses to guide the study. This study was a correlational research design. The population of the study consisted of all 156 public primary schools with 2100 teachers in Abuja Municipal Area Council (AMAC) of the Federal Capital Territory, Abuja.