Examine and describe each researcher’s contribution(s) to psychology theory and practice.

Examine the major theoretical approaches proposed by the authors including any related research methods and/or asse​‌‍‍‍‌‍‍‍‌‍‍‍‌‌‌‌‌‌‍‍​ssment instruments associated with him or her. Identify potential ethical considerations posed by each theory.

What could be unethical about either the running of typical classical and operant conditioning experiments or the manipulation of human behavior through rewards and punishments?