Four developmental psychologists have been conducting separate research into the patterns of language development of deaf children.They meet in Chicago to discuss, summarize,

and, hopefully, interrelate their conclusions from their published works and propose future research on this topic. Within the framework of the scientific method, these psychologists would most likely be
a. proposing a hypothesis.
b. hypothesis testing.
c. operationally defining terms.
d. theory building.

ANSWER: d