Dante is a very active parent who enjoys playing basketball and riding his bike but he must repeatedly ask, cajole and beg his son to join him for a bike ride. His son, Michael does not enjoy physical activity and would rather read or play with his toys. This dynamic demonstrates the importance of which development principle:

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.