Understanding Psychology: Core Principles and Scientific Methods

The Foundations of Psychology

Psychology is a relatively young science with roots in many disciplines, including physiology, sociology, medicine, and philosophy. It examines human behavior and the underlying causes that originate it.

Historical Roots

Until the early 20th century, psychology was defined as the science of mental life. From the 1920s to the 1960s, American psychologists, led by John Watson, redefined psychology as the science of observable behavior.

Key Areas of Psychology

• Experimental Psychology: Focuses on scientific methodology and research techniques.
• Psychophysiology: Studies the biological bases of behavior and the relationship between bodily processes and organism behavior.
• Evolutionary Psychology: Examines changes and development in human behavior from the prenatal period through adulthood.
• Clinical Psychology: Focuses on the diagnosis and therapy of emotional and behavioral disorders.
• School Psychology: Addresses educational problems; contrary to popular belief, it serves all students, not just those with specific difficulties.
• Social Psychology: Investigates the influence of social groups and media on individual behavior.
• Industrial/Work Psychology: Studies human factors within the industrial and labor sectors.
• Sports Psychology: Applies psychological principles to sports learning, practice, and performance.

The Scientific Approach

Applying a scientific attitude requires a considerable dose of humility, as we must be prepared to discard ideas that are not supported by evidence.

The Scientific Method

In science, a theory explains phenomena through an integrated set of principles that organizes and predicts observable facts. By organizing isolated facts, a theory simplifies complex information.

Psychological Research Methods

Description

The starting point of any science is description:

• Case Studies: Psychologists study one or more individuals in depth to understand important aspects of their behavior.
• Surveys: Researchers ask people to report on their own behaviors or opinions.