Social psychology is the field of psychology that studies individuals' thoughts, feelings and actions within a social context, i.e. as a function of the current or perceived presence of other individuals or groups. In the area, properties / processes regarding different phenomena are studied both within individuals (e.g. attitudes) and between individuals (e.g. attraction) as well as different phenomena both within groups and between groups.
Developmental psychology includes the study of normal development and individual variations from birth to adulthood. Developmental psychology deals with various aspects such as perceptual, motor, cognitive, emotional, social and personality development, as well as the biological basis for developmental processes. The field of developmental psychopathology has special relevance for clinical psychology. Based on knowledge of normal development, descriptions and explanations for deviant developmental processes are sought, primarily with regard to emotional, social and personality psychological processes.
Source: The Swedish National Committee for Psychological Sciences