Final answer:
Behaviorism suggests that psychologists should focus on studying observable behavior due to the impossibility of directly studying the mind. By focusing on observable behavior, behaviorists aim to make psychology an objective science.
Step-by-step explanation:
One of the key ideas of behaviorism is that psychologists should limit their attention to the study of observable behavior because the mind is not directly observable. Behaviorists believe that all behavior, including ideas and feelings, can be explained in terms of basic physical factors and conditioning. By focusing on observable behavior, behaviorists aim to make psychology an objective science.