As many others, the Institute for Development Research And Applied Care (IDRAC) has chosen the Temperament Evaluation of the Memphis Pisa Paris and San Diego Auto-Questionnaire (Temps-A) for the National Assessment of Affective Temperament on 2857 Lebanese Adults as part of the National Lebanese Evaluation of the Burden of Ailments and Needs Of the Nation study (L.E.B.A.N.O.N study). This National study includes two components: the L.E.B.A.N.O.N World Mental Health Surveys where the Arabic Composite International Diagnostic Interview (CIDI 2000) was the instrument used for the diagnostic assessment of mental health disorders (Depression, Mania, Anxiety, Panic, Phobias, Substance Use, Obsessive Compulsive Disorder, etc), risk factors, treatment, physical condition, demographic variables, etc., and the L.E.B.A.N.O.N-TEMP where the instrument used was the Lebanese-Arabic version of the Temps-A.