What percentage of people carrying the Huntington's gene develop the disorder?

The purpose of an Institutional Review Board is ____

a. to prevent ethical violations and judge whether the research being proposed follows reasonable ethical guidelines b. to design research studies, test hypothesizes, and secure funding c. to generate theories, measure variables, and publish findings in peer-review journals d. to supervise and monitor research that is being conducted and to support the mission of the university

Skills, such as tying a tie or playing a guitar, are most easily learned through

a. classical conditioning. b. verbal instruction. c. modeling. d. instrumental learning.