If you wanted to investigate the possibility of a brain tumor, the best type of neuroimaging would be a(n) _____

An interesting result of Bigelow's (1977) study examining friendships is that children rarely mentioned _______________ as an important characteristic in best friends

A) physical attractiveness B) acceptance C) loyalty D) having an admirable character

A(n) ________ is an innocuous substance that has no specific physiological effect

A) placebo B) agonist C) drug D) pseudotransmitter E) ligand