Final answer:
The claim that psychologists avoid studying emotions because they have little impact on behavior is false; emotions greatly influence behavior, which is why they are important in psychological studies.
Step-by-step explanation:
The statement 'Psychologists avoid studying emotions because they have little impact on behavior' is FALSE. Psychologists are deeply interested in the study of emotions because of their significant impact on behavior. Emotions can influence a wide range of human behaviors, and understanding these emotional states is crucial for psychologists who study mental health and human actions. Behavioral economics is one field that incorporates psychological insights, recognizing that emotions like revenge, optimism, or loss can affect decision-making and financial judgments. Emotions are essential for understanding the complexity of human behavior, and psychologists employ various methods to study them, even when direct communication with the subject is not possible.