Critical Thinking Guidelines and Steps in Psychology
Overview of Critical Thinking in Psychological Science
Textbook context:
Title: Psychology (Fourteenth Edition / 14th Edition, Pearson Rental Edition).
Authors: Carole Wade, Carol Tavris, Samuel Sommers, Lisa Shin.
Publication details: Copyright 2024, 2020, 2017 Pearson Education, Inc.
Chapter context: Chapter 1, Section 1.2 "Thinking Critically About Psychology".
Primary learning objectives:
Learning Objective 1.2.A: Explain why critical thinking applies to all scientific pursuits and why it should also guide everyday judgments and decision-making.
Learning Objective 1.2.B: Identify important steps to critical thinking, and give an example of how each applies to the science of psychology.
Core benefits of studying psychology:
Understanding general brain mechanisms and cognitive operation.
Learning how to use one's own brain effectively by developing and applying critical thinking skills.
Verbatim definition of Critical Thinking:
The ability and willingness to assess claims and make objective judgments on the basis of well-supported reasons and evidence rather than emotion or anecdote.
Distinguishing information quality:
Differentiating credible from noncredible information—specifically distinguishing "good science" from "bad science"—is vital when public and personal health are on the line (van Stekelenburg et al., 2021).
Importance during crises:
In times of crisis, critical thinking becomes exceptionally critical.
Misinformation surrounding the COVID-19 pandemic highlights the importance of critical thinking regarding:
Dynamics of virus transmission.
The effectiveness of mask usage.
Vaccination safety and efficacy.
The use of drugs not specifically indicated for treating the virus.
Core functions of critical thinkers:
Evaluating competing findings on personally and socially important psychological topics.
Looking for structural flaws in logical arguments.
Resisting claims that have no empirical support.
Applying critical thinking as a fundamental requirement across all scientific disciplines, including psychological science.
Step 1: Ask Questions and Be Willing to Wonder
Foundational drive of critical inquiry:
Both critical and creative thinking begin with wondering "Why."
Question type that most exasperates caregivers of young children: "Why" questions.
Aging and curiosity: Individuals frequently stop asking "why" questions as they grow older; asking "why?" more often is identified as the single most critical habit to maintain.
Photo attributions and visual contexts:
Photo credit: David Castillo Dominici/123RF (illustrating childhood inquiry).
Photo credit: Fayaz Aziz/Reuters (illustrating human intervention and social action).
Application to psychological research design:
Investigating prosocial behavior: Asking why some individuals bravely come to the aid of fellow human beings even when it is not their official job duty.
Investigating harmful behavior: Asking why people frequently behave in ways that are selfish, cruel, or violent.
Asking "why" questions serves as the essential first step in designing research that advances scientific knowledge.
Guideline application (Table 1.1):
Practical question: "Can I recall events from my childhood accurately?"
Step 2: Define Your Terms
Frame questions clearly:
Critical thinkers must frame questions in clear and concrete terms.
Consequences of vagueness: Vague or poorly defined terms in a question produce misleading, ambiguous, or incomplete answers.
Psychological research applications:
Research on prejudice: Psychologists studying prejudice obtain distinct and differing results depending directly on how prejudice is defined.
Research on intelligence:
Intelligence is frequently cited, but scientists must precisely define what it encompasses.
Questions raised: Does the musical genius of a world-class artist like Kendrick Lamar count as intelligence?
Questions raised: Is intelligence exclusively captured by an IQ score, or does it also encompass wisdom, creativity, and practical "smarts"?
Scientists and critical thinkers must maintain strict precision in operationalizing their terms.
Guideline application (Table 1.1):
Operational definitions:
Defining "childhood" explicitly as ages to .
Defining "events" as personal experiences, such as a trip to the zoo or a stay in the hospital.
Defining "accurately" as meaning the event basically occurred in the exact manner remembered.
Step 3: Analyze Assumptions and Biases
Operational definitions:
Assumptions: Beliefs that are taken for granted without direct verification.
Biases: Assumptions or beliefs that keep an individual from evaluating evidence in a fair and objective manner.
Cognitive consequences:
Failing to recognize personal assumptions or those of others severely impairs the ability to judge the true merits of an argument.
Emotional reasoning is frequently produced by unexamined assumptions and biases.
Applied example in substance perception and culture:
American cultural bias: A widespread assumption that all psychoactive drugs are inevitably harmful.
Rastafarian church counter-perspective: The Rastafarian church regards marijuana as a "wisdom weed."
Contextual variables to analyze:
Evaluating whether Rastafarians who have used marijuana with family, during religious ceremonies, and from a young age react to it in the same manner as an adult who purchases it on the street for the first time or smokes it alone.
Critical thinkers must check assumptions and actively monitor biases and emotional reasoning.
Guideline application (Table 1.1):
Analyzing personal assumptions: Identifying the long-held assumption that memory functions like a video recorder—perfectly accurate for every moment of life—and recognizing that this belief may be a bias driven by reassurance.
Step 4: Examine the Evidence
Standards for empirical grounding:
Critical thinkers base all conclusions strictly on evidence.
Rejection of lazy cognitive habits:
Avoiding oversimplification of complex facts.
Resisting easy or hasty generalizations.
Rejecting either/or (dichotomous) thinking.
Recognizing that accepting a claim without evidence is a symptom of lazy thinking.
Real-world exploitation:
Photo credit: Sergey Mironov/Alamy Stock Photo (depicting a fortune teller).
Exploitation by fortune tellers: When demonstrating supposedly magical phenomena, fortune tellers actively exploit people's tendency to not engage in a full examination of evidence.
Guideline application (Table 1.1):
Empirical evaluation: Subjectively feeling as though a fifth birthday party is recalled perfectly, while evaluating empirical research showing that people frequently reconstruct past events inaccurately.
Step 5: Weigh Conclusions
Navigating cognitive uncertainty:
One of the hardest lessons in learning to think critically is learning how to live with uncertainty.
Critical thinkers must tolerate uncertainty, weigh conclusions carefully, and actively consider alternative interpretations.
Recognizing that important psychological questions rarely possess simple answers.
Practical applications in parenting and caregiving:
Parents and caregivers deeply want children to turn out well, making it difficult for them to accept uncertainty or objectively evaluate competing research interpretations read online or in news media.
Co-sleeping debate: Questioning whether adult caregivers should co-sleep with children, or whether co-sleeping makes children excessively dependent and clingy.
Sleep training debate: Questioning whether caregivers should allow a baby to "cry it out" sometimes to learn how to self-soothe, or whether the practice inflicts lasting emotional scars on the developing child.
Guideline application (Table 1.1):
Formulating open conclusions: Accepting that an individual may never know for sure whether certain childhood memories are real or combinations of accurate and inaccurate information, while recognizing the need for additional research studies to identify characteristics associated with reliable versus unreliable memories.
🌟 Critical thinking is essential in psychological science as it aids in making objective judgments based on evidence rather than emotion. It involves evaluating information quality, analyzing assumptions and biases, and asking clear, concrete questions. Key steps to critical thinking include:
Asking Questions 🤔
Beginning research with curiosity and inquiry about behaviors.
Defining Terms 📖
In psychology, the precision of definitions influences research outcomes, particularly on complex issues like prejudice and intelligence.
Analyzing Assumptions 🧠
Recognizing biases that may cloud judgment ensures fair evaluation.
Examining Evidence 🔍
Conclusions should be grounded in robust evidence, avoiding oversimplification.
Weighing Conclusions ⚖
Accepting uncertainty and considering alternative interpretations helps navigate complex psychological inquiries.
💡 Looking at real-world implications reinforces the importance of critical thinking in addressing personal and public health issues, as shown during crises like the COVID-19 pandemic.