Which statement best reflects the scope of psychology as a scientific discipline?

• A. Psychologists focus solely on the way we think and feel.
• B. Psychology is the study of the brain only, and it excludes social and environmental influences.
• C. Psychology is primarily concerned with diagnosing and treating mental illness and does not study everyday behavior.
• D. Psychology is the scientific study of behavior and mental processes, including thoughts, emotions, and actions.

Answer: (D)

Verified step by step guidance

1. Understand that psychology is a broad scientific discipline that studies both behavior and mental processes, not limited to just thoughts or feelings.
2. Recognize that psychology includes the study of brain functions as well as social and environmental influences on behavior.
3. Acknowledge that psychology is not only about diagnosing and treating mental illness but also about understanding everyday behaviors and mental activities.
4. Identify that the correct statement should encompass the comprehensive nature of psychology, including thoughts, emotions, actions, and their underlying processes.
5. Conclude that the best reflection of psychology's scope is that it is the scientific study of behavior and mental processes, covering a wide range of human experiences.