Child psychology and Psychological science

Child psychology noun - The branch of psychology that studies the social and mental development of children.

Psychological science and child psychology are semantically related. In some cases you can use "Psychological science" instead a noun phrase "Child psychology".

Psychological science noun - The science of mental life.

Child psychology and psychological science are semantically related. Sometimes you can replace phrase "Child psychology" with "Psychological science", this phrases are similar.