C180 Chapter 1 Foundations

Grace J.
November 10, 2025November 10, 2025
BSN, C180, Western Governors University

Student Name

Western Governors University

C180 Introduction to Psychology

Prof. Name

Date

Chapter 1: Foundations

Learning Outcomes

By the end of this chapter, you should be able to:

Grasp the wide-ranging scope of psychology.
Identify and compare the major perspectives in psychology.
Understand the scientific research methods employed to study human thought and behavior.

Different Approaches in Psychology

Psychology can be broadly defined as the scientific study of human behavior, emotions, and cognitive processes. Each psychological approach provides a unique lens to explain how and why individuals think, feel, and act in certain ways.

Behavioral Approach

The behavioral perspective emphasizes observable actions rather than internal mental states. It explores how external environmental stimuli and internal responses interact to shape behavior. Classical and operant conditioning, developed by researchers such as Pavlov and Skinner, remain central to this approach.

Biological Approach

The biological perspective focuses on the genetic, neurological, and physiological mechanisms underlying mental functions and behaviors. This approach views psychological phenomena through a biological and physical lens, considering factors such as neurotransmitters, hormones, and brain structures.

Evolutionary Approach

From an evolutionary standpoint, psychology examines how natural selection and adaptive behaviors have shaped human cognition and emotion. This approach investigates how survival and reproductive success influence traits such as aggression, cooperation, and mate selection.

Developmental Approach

Also known as Human Development, this approach studies the psychological growth and changes that occur across the lifespan—from infancy to late adulthood. It explores milestones in cognitive, social, and emotional development, as well as factors influencing individual differences.

Psychodynamic Approach

Rooted in the theories of Sigmund Freud, the psychodynamic approach highlights the influence of unconscious drives, motives, and early childhood experiences on behavior. It emphasizes inner conflicts and defense mechanisms that shape personality and emotional well-being.

Cultural Approach

The cultural perspective considers how cultural values, traditions, gender norms, and social identity influence psychological processes. It underscores how social and cultural contexts—including ethnicity, race, and sexual orientation—affect perception, motivation, and behavior.

Cognitive Approach

The cognitive approach investigates mental processes such as thinking, memory, attention, problem-solving, and language. It examines how information is acquired, processed, and stored, and how these processes affect decision-making and behavior.

Breadth of Content in Psychology

Psychology seeks to answer foundational questions such as:

Why do we behave the way we do?
Why do we experience certain emotions?
What factors shape our thinking?
What makes humans unique compared to other species?
How do individual differences arise?
In what ways do social contexts influence our behavior?

The field of psychology encompasses diverse research areas, as shown in the table below.

Table 1

Breadth of Psychological Content

Topic	Description
Brain Functioning	Investigates how brain activity correlates with behavior, emphasizing the integration of different brain regions.
Memory	Studies how memory operates as a functional system, exploring recall accuracy, eyewitness memory, and memory distortions.
Innate Capacities	Examines natural abilities present from birth, such as infants’ capacity for numerical understanding.
Communication and Displays	Explores verbal and nonverbal communication, including gestures, tone, and physical displays used for social signaling.
Social Behavior in Humans	Analyzes complex and strategic human interactions, particularly how behavior changes in groups or crowds.

The variability of human behavior in social contexts remains a key area of psychological research, providing insights into conformity, leadership, and group dynamics.

Diversity of Perspectives

The richness of psychology lies in its ability to study a single phenomenon from multiple angles. For example, the act of eating can be analyzed differently depending on the perspective applied.

Table 2

Psychological Perspectives on Eating Behavior

Perspective	Focus Area
Biological	Investigates the genetic and physiological bases of eating behaviors, such as hunger hormones and brain regulation.
Cultural	Considers how cultural traditions and social norms influence dietary habits and food preferences.
Social	Examines the role of social situations, peer influence, and family interactions in eating behavior.
Psychological Disorders	Focuses on abnormal eating patterns, including anorexia and bulimia nervosa.
Cognitive	Studies how individuals make decisions about food and self-regulate their eating behaviors.
Developmental	Traces how food preferences evolve throughout life, influenced by experience and exposure.

What Unites Psychology?

Despite the diversity of perspectives, psychology is unified by two central themes.

Theme 1: Types of Questions

Psychologists are primarily interested in understanding why humans think, feel, and behave as they do.

Theme 2: Methods of Inquiry

Psychologists rely on systematic and empirical methods, using observation, experimentation, and analysis to draw valid conclusions.

The Scientific Research Method in Psychology

Psychology aims to describe, explain, predict, and influence human behavior through scientific inquiry. The scientific method provides a structured process that includes identifying a problem, formulating hypotheses, collecting data, analyzing results, and drawing conclusions.

Research Methods in Psychology

Research in psychology is generally divided into experimental and non-experimental methods.

Table 3

Overview of Research Methods

Method Type	Examples	Data Type	Notes
Experimental	Laboratory experiments, field experiments, quasi-experiments	Quantitative	Offers control over variables and allows causal inference.
Non-experimental	Observations, surveys, interviews, case studies	Qualitative or quantitative	Descriptive in nature with limited variable control.

Observation

Naturalistic observation involves studying behavior in its natural setting without manipulation. For example, researchers might record the number of times individuals smile or engage in aggressive acts during everyday interactions.

Correlational Studies

Correlational research investigates relationships between two or more variables, determining their direction and strength without inferring causation.

Table 4

Types of Correlations

Correlation Type	Description	Coefficient Range
Positive Correlation	Both variables move in the same direction.	Close to +1.00
Negative Correlation	One variable increases while the other decreases.	Close to -1.00
No Correlation	No significant relationship between variables.	Around 0

Experimental Studies

In experimental designs, researchers manipulate one variable to determine its effect on another, allowing for cause-and-effect conclusions.

Table 5

Key Experimental Terms

Term	Definition
Independent Variable (IV)	The factor deliberately manipulated by the researcher.
Dependent Variable (DV)	The observed outcome influenced by the IV.
Control Group	Participants who do not receive the experimental treatment.
Experimental Group	Participants who receive the experimental treatment.

Example of an Experimental Hypothesis

A researcher might hypothesize: “Using verbal praise enhances students’ performance in mathematics.”
Two groups of students with similar academic ability are taught identical material. Group A receives verbal praise during lessons, while Group B does not. Upon assessment, Group A performs better, supporting the hypothesis.

Table 6

Variables in the Study

Variable Type	Example in Study
Dependent Variable	Student achievement in mathematics
Independent Variable	Use of verbal praise
Experimental Group	Group A (received praise)
Control Group	Group B (no praise)

Advantages and Disadvantages of Research Methods

Each research method offers distinct benefits and limitations.

Table 7

Comparison of Research Methods

Method	Advantages	Disadvantages
Observation	High ecological validity; minimal interference from the researcher.	Limited control over variables; cannot establish causation.
Correlational	Identifies patterns and allows predictions; applicable in real-world settings.	Cannot determine cause-and-effect relationships.
Experimental	Provides control over variables; enables causal inference.	Artificial settings; limited generalizability; potential researcher bias.

References

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000