To Assist in His Experimental Analysis of Behaviour,Skinner Invented a Device

Multiple Choice

To assist in his experimental analysis of behaviour,Skinner invented a device known as the "operant chamber." What did this apparatus allow researchers to manipulate?

A) an organism's level of motivation.
B) the amount of planning behaviour that was required of an organism.
C) an organism's state of mind.
D) the consequences of an organism's behaviour.