Comparison of the Effectiveness of Certainty Factor vs Dempster-Shafer in the Determination of the Adolescent Learning Styles

Adolescent is a transition from child to adulthood. In this phase, many teenagers do not know their learning style, whether auditory, visual or kinesthetic. To analyze the way of adolescent learning required counseling from a psychologist. Furthermore, To maintain the objectivity of advice, technology can help the psychologists to build an expert system. This research discussed the expert system to determine of adolescent learning styles based on expert knowledge by comparing the effectiveness of demster-Shafer and certainty factor by referring at the process of calculation or processed data effectively and generating accurate confidence values. The results can be a reference for psychologists in determining learning styles so that it can be developed into an expert system application-based technology.