Psychology as a Science: Concepts, Research and Ethics · Lesson 1

What Is Psychology? From Historical Schools to Contemporary Questions

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Lesson objectives

  • Distinguish observable behavior from a proposed explanation involving a mental process.
  • Compare the central questions of historical schools without treating their influence as evidence for all their ideas.
  • Classify biological, cognitive and social explanations and turn a broad impression into a question that can be investigated.

In a fictional learning circle, some participants answer quickly while others remain silent. Someone concludes, “The silent participants are not interested.” What was actually observed? People differed in answering; interest itself was not directly observed. A person might need time to formulate an idea, misunderstand the question or prefer to hear others first. Psychology is useful here not because it supplies a ready-made explanation of people, but because it helps identify the question and the evidence needed to answer it.

What does psychology investigate?

Behavior concerns what a person does, such as asking a question or postponing a task. Mental processes include attending, remembering, thinking and feeling. They are investigated through performance, reports and other evidence, not by reading minds. Psychology is not limited to psychological difficulties: it also asks about learning, development, personality, social interaction and the biological bases of behavior. Different branches can examine the same situation using questions suited to their focus and methods.

An explanation can address more than one level. A biological question concerns processes in the body and nervous system; a cognitive question concerns information processing; a social question concerns interaction, norms and context. These are levels of inquiry, not fixed boxes for a person. A cognitive possibility does not rule out social influences, and mentioning “the brain” does not establish an explanation. The following table presents hypothetical questions, not research findings about the participants.

LevelA question about silenceEvidence that would be needed
BiologicalIs alertness related to task performance?Suitable measures of alertness and performance; appearance alone is insufficient.
CognitiveDid participants understand the wording of the question?A task showing understanding of the instructions, with how they were presented specified.
SocialDo responses differ between individual writing and discussion in front of the group?A described comparison of the two formats that examines other differences.

Historical schools: different questions and methods

History helps explain why psychology has varied concerns. Attention has shifted among conscious experience, its function, observable behavior and processes not directly visible. This was not a race in which every earlier idea simply disappeared. A useful question can survive while methods change, and a theory can remain culturally influential without all its explanations being readily testable. Read the table as a brief comparison, not as a judgment on every study associated with an approach.

ApproachCentral question or focusA distinction to retain
Structuralism; associated with Titchener following Wundt’s workAnalyzing components of conscious experience through systematic reports of experience.A report of inner experience is not direct observation of every mental process.
Functionalism; associated with William JamesAsking what mental activity and behavior do in adaptation.Asking about function differs from asking about components of experience.
Behaviorism; represented by Watson and SkinnerStudying observable behavior and its relationships with the environment and learning.It focuses on observable, testable behavioral relationships rather than analysis of subjective experience alone.
Psychoanalysis; associated with FreudGiving unconscious processes and early experiences a role in explaining behavior.This describes a historical approach; it does not establish a particular hidden explanation.
Humanism; represented by Maslow and RogersPersonal experience, choice and the capacity for growth.It asks about the meaning of experience and personal choice, not only outward action.
The cognitive shiftInvestigating attention, memory and thinking through experiments and testable models.Returning to mental processes does not mean abandoning systematic evidence.

It also helps to distinguish an approach, a research field and a finding. An approach brings together ways of thinking about people; a field identifies a topic such as development or perception; a finding concerns what a particular study observed under its conditions. A developmental researcher might use cognitive, biological or social explanations. Neither the name of an approach nor that of a field settles whether a finding is sound. Ask about evidence for the particular statement.

How can an impression become a research question?

Begin by specifying whom or what you are discussing, the behavior or experience of interest, and circumstances that can be examined. Then ask: what result would make me reconsider my explanation? Saying “Everything this person does shows the same motive” closes off examination: it can explain an action and its opposite after either occurs. A specific question allows more than one outcome. Being testable does not make an idea true; it provides a route to information that could support or weaken it.

Reference guide: OpenStax’s Psychology 2e, “History of Psychology,” compares approaches; “Contemporary Psychology” describes research fields. The examples and exercises here are original instructional cases, not findings from those sections. The next lesson makes words such as “question” and “participation” specific enough for two people to record the same thing.

Lesson summary

Psychology investigates behavior and mental processes with methods open to examination. Description states what happened; explanation proposes why and needs further evidence. Historical schools show changing questions and methods, not a list of equally established facts. Begin with a specific observation and compare testable explanations rather than judging a person from one event.