To study for any type or level of degree in child psychology, you must take general psychology prerequisite classes. General psychology introduces the processes, methods and reasoning behind the field of psychology to give you a basis from which to work. An introduction to child psychology is also often required before you can choose to major or specialize in child psychology. Introduction to child psychology classes take a general look at the field of developmental psychology. Students will study the pioneering theories that created developmental psychology and the theories that further articulated this field, separating it from developmental psychology to become its own focus.
A bachelor of arts in child psychology is the simplest degree that can be earned in child psychology. This degree requires the least amount of science classes and takes the broadest view of child psychology. While this is a first step for future child psychologists, most will attain a master's or Ph.D. to begin practice. A bachelor of arts in child psychology can take between two to four years to complete.
A bachelor of science in child psychology differs from the bachelor of arts because it requires a higher number of science classes to complete. Those taking classes to obtain a bachelor of science in child psychology study the chemistry and biology of mental and physical development in children from birth to childhood. Attaining a bachelor of science is the first step to realizing whether you would enjoy gaining your master's or Ph.D. to become a practicing doctor.
A child psychologist with a Ph.D. can not only counsel and diagnose patients, but prescribe medication. This requires a deep understanding of the chemistry, biology and psychology behind behavioral disorders, and how they might be corrected through counseling, medicine or a combination of the two. To attain a master's or Ph.D. in child psychology, you can complete a master's first or enter a program that allows you to work toward your master's and Ph.D. simultaneously. These degrees can take anywhere from four to 10 years to complete, and in certain circumstances, even longer. A child psychologist with a Ph.D. can open a private practice, work through a counseling agency or participate in research centers, among other important jobs.