As a Developmental Psychologist you would be studying how humans undergo changes socially (eg: identity and sexuality), cognitively (eg: learning, language and memory) and physiologically. You would look at the interplay between genetics and environmental factors in determining individuals' personalities. As this area of psychology includes development over the whole life span, you would choose to specialise in a specific age range (infancy, childhood, adolescence, the elderly). Not only would you look at how individuals develop but you would identify disabilities that might affect development.
Developmental Psychologists are employed in a variety of different workplaces depending on what they choose to specialise in:
Qualifications - How do I become a Developmental Psychologist?