An executive in a computer software firm works with his office door closed. at the same time every hour he opens the door to see what his employees are doing. the employees have learned to work especially hard during the five minutes before and while the door is open. their work pattern is typical of responses that are reinforced on a schedule.

What would happen to the tides if there was no moon and no sun in the sky?

You think all professors are uncoordinated, but then you see your social psychology professor make a diving catch down the left-field line at an intramural softball game against the arts department team. you also notice that your professor hits lead-off for the team and is able to score from second base on a ground-out. you maintain your original stereotype of professors as uncoordinated by deciding that this one individual is an exception to the rule because he is a “young professor.” this is an example of

What is a basic principle of the declaration of independence