Such specialization is necessary because the subject matter of psychology has become so vast over the years. Today it is virtually impossible for anyone to stay abreast of the new research in all specialties. Specialization is also necessary because specific skills and training are required to do research in some areas. As you can see, social psychology and developmental psychology have become especially active areas of research. Figure caption 1.7 Major research areas in contemporary psychology.
Most research psychologists specialize in one of the seven broad areas described here.
The figures in the pie chart reflect the percentage of research psychologists belonging to APA who identify each area as their primary interest.