Temperament characteristics of mentally retarded children.

In a comparative study of temperament and intelligence in groups of mentally retarded and normal children, it was found that mentally retarded children who also had excess of psychopathology in them, showed greater signs of 'difficult' child temperament. Relationship between intelligence and emotionality variable of temperament was linear and positive in the mentally retarded children. This study generates the hypothesis that negative mood may be temperamental correlated with mental retardation.