PSY 302 Lecture Notes - Prenatal Development, Internal Validity, External Validity

41. The fact that researchers have found that rat pups that were raised in a stimulating early environment have larger neurons and more dendrite branches supports A) the idea that brain development is primarily genetically determined B) the idea that the environment has an important impact on brain development C) the idea of neural plasticity D) all of the above E) Only B) and C) above

• Summarize object relations theory and attachment theory,
noting key contributions, developments, and concepts.

24. In developmental research, an) period is an age range during which specific experiences must take place if normal development is to occur. This is in contrast to period, where it is optimal but not necessarily essential for these experiences to occur A) sensitive; critical B) critical; receptive C) critical; sensitive D) explicit; sensitive E) none of the above are correct