Academic Performance 1 Agro-economic variables 1 Agronomic variables 1 Attitude scales 1 Dissertations, Academic (Ph.D) 1 Personal variables 1 Personality Variables 1 Personality variables 1 Psychological variables 1 Psychology 1 Rheumatoid arthritis 1 Situational and communicational variables 1 Social Behaviour-- Personality Variables 1 Social variables 1 Socio-personal variables 1 Thesis (Ph.D)-Psychology 1 psychological variables 1