EXPERT SYSTEM MENDIAGNOSA TINGKAT DEPRESI SISWA MENGGUNAKAN METODE CERTAINLY FACTOR

Depression is a mood disorder characterized by symptoms such as moodiness, lethargy, lack of passion, feelings of worthlessness, deep frustration, hopelessness, thoughts of death and suicidal thoughts, depression is one of the mental health conditions, many students still have difficulty determining which stage and how severe the depression they are experiencing, Identifying factors that affect the level of depression experienced by students by applying the Certainty Factor (CF) method to the  expert system to diagnose the level of student depression, Certainty Factor is a method for dealing with uncertainty in rule-based systems by performing calculations, after the system runs well, the implementation is carried out on students by registering first then logging in after that answering questions from data on symptoms that cause depression based on their respective levels