10-14 depending on maturity
They were first used as evidence in 1892.
<span>The best rule to follow in applying operant conditioning to your own life is to is a form of associative learning in which behaviors are triggered by associations with events in the environment. In classical conditioning it is learning in which an organism comes to ASSOCIATE one stimulus with another.</span>
The nature of each one's relationship to Sally is what sociologists call a tie.
Explanation:
Strong and weak ties are relevant when socializing in an environment. A strong tie is someone who know you very well and whom you also trust in all endeavors and at all times. Mostly Blood relations form such ties.
Weak ties are the people who establish a relationship for a short period of time. examples are like a train passenger who shares good terms with you and they move in their own way when they reach the destination. A common friend establishes such a relationship who stays with you until the other person is friendly and then they leave.