Comprehensive Notes on Psychological Inquiry, Critical Thinking, and Early History

The Power of Psychological Inquiry and Critical Thinking

• Psychological Science vs. Widely Held Beliefs
  • What psychological scientists have learned often contradicts popular belief.
  • Emphasizes that what truly matters is factual truth, not what "feels" true.
  • Critical thinking allows for the identification of effective policies, often revealing that counter-intuitive approaches are more effective.
• Examples of Critical Inquiry Leading to Effective Policies
  • Crime Deterrence: Increasing the likelihood of arrest is more effective than lengthening prison sentences (Bridgland et al., 2024; Shafir, 2013).
  • Trauma Recovery: Counselors should not help people relive trauma, but rather focus on other therapeutic approaches.
  • Reducing Psychological Distress: Providing "trigger warnings" is not as effective as other methods.
  • Increasing Voting: Emphasizing that peers are voting is more effective than highlighting low turnout.
• Critical Thinking's Impact
  • It can change the world by promoting evidence-based policies and practices.
  • It can change individuals by helping them critically assess popular applications of psychology, such as self-help advice.
• Assessing Self-Help Advice
  • Questions to ask:
    • Are suggestions based on evidence or mere anecdote?
    • How might the author's personal values influence the advice provided?
  • Guidance on how to live (e.g., raising children, self-fulfillment, sexual feelings, career advancement) is inherently value-laden.
  • While psychological science can help achieve goals, it cannot determine which goals are inherently worth pursuing.
  • Psychological scientists teach principles and evidence, but they do not preach values or dictate life choices.

Study Strategies for Enhanced Learning

• Testing Effect: Memory research demonstrates that information is retained much better through active retrieval.
• Retrieval Practice: Actively self-testing and rehearsing material significantly bolsters learning and memory.
• Throughout the text, utilize "Retrieval Practice" questions and questions in "Module Review" sections to apply this principle.

Defining Critical Thinking and the Scientific Attitude

• What is Involved in Critical Thinking? (RP-1)
  • Examining our own assumptions.
  • Appraising the source of information.
  • Discerning hidden biases present in arguments or data.
  • Assessing conclusions based on the available evidence.
• The Three Parts of the Scientific Attitude (RP-2)
  • Curiosity: An insatiable desire to explore and understand the world around us.
  • Skepticism: A healthy questioning of untested claims and ideas, requiring evidence for acceptance.
  • Humility: An awareness of one's own limitations and the possibility of being wrong, leading to a willingness to discard ideas that do not hold up to scientific scrutiny.
  • These attitudes guide psychologists in testing ideas with scientific methods and discarding those that are unsupported by evidence.

Psychology's Early History: Important Milestones

• Ancient Roots (Before $300 \text{ B.C.E.}$)

  • The Greek philosopher Aristotle theorized about fundamental psychological topics such as learning, memory, motivation, emotion, perception, and personality.
  • Although some of his specific guesses were incorrect (e.g., a meal causing sleepiness due to gas and heat around the heart), he is credited with asking the foundational and "right questions" about human nature.

• Psychology's First Laboratory (1879)

  • Pivotal Event: The birth of scientific psychology occurred in December $1879$ in a small, third-floor room at Germany's Leipzig University.
  • Wilhelm Wundt (1832-1920), an austere, middle-aged professor, established the first psychology laboratory.
  • Initial Experiment: Wundt and two students created an experimental apparatus to measure the "atoms of the mind" (the fastest and simplest mental processes).
  • Procedure: They measured how quickly people pressed a telegraph key after hearing a ball hit a platform.
  • Findings:
    • Responded in approximately $0.1$ seconds when asked to press the key immediately upon hearing the sound.
    • Responded in approximately $0.2$ seconds when asked to press the key upon consciously perceiving the sound.
    • This demonstrated that being consciously aware of one's awareness takes a small but measurable amount of time.

Pioneering Women in Psychology

• Mary Whiton Calkins (1863-1930)
  • In $1890$, William James (a legendary teacher-writer and author of Principles of Psychology, $1890$) admitted Calkins to his Harvard graduate seminar, despite objections from the university president.
  • All male students dropped out, so James tutored her individually.
  • Calkins completed all Harvard's Ph.D. requirements, outscoring all male students on qualifying exams.
  • Discrimination: Harvard denied her the earned degree, offering an inferior doctorate from Radcliffe College (its undergraduate "sister" school).
  • Calkins resisted this unequal treatment and declined the Radcliffe degree.
  • Achievements: Despite the institutional barrier, she became a distinguished memory researcher and, in $1905$, the first female president of the American Psychological Association (APA).
• Margaret Floy Washburn
  • Received the honor of being the first official female psychology Ph.D.
  • Authored an influential book, The Animal Mind.
  • In $1921$, she became the second female APA president.
  • Discrimination: Despite her achievements (including her thesis being the first foreign study Wundt published in his psychology journal), her gender prevented her from joining the all-male organization of experimental psychologists founded by her graduate adviser, Edward Bradford Titchener.

Increasing Diversity in Psychology

• Historical Context: A $1964$ meeting of the Society of Experimental Psychologists showed Eleanor Gibson as a rare female face among White men.
• Modern Progress:
  • Between $1988$ and $2025$, more than half of the elected presidents of the Association for Psychological Science (APS) have been women.
  • Women now hold an increasing proportion of other leadership positions within psychology.
  • In the United States, Canada, and Europe, women now earn most psychology doctorates.
  • Current APS Membership Statistics:
    • Women constitute $51\%$ of APS members.
    • Women comprise $70\%$ of APS psychology student affiliates.
  • Overall Diversity: Psychology's diversity continues to grow.
    • Nearly half of psychology graduate students are people of color.
    • The majority of graduate students are women (Assefa et al., 2023; Gruber et al., 2021).

The Start of Scientific Psychology

• Defining Event (RP-3)
  • Scientific psychology officially began in Germany in $1879$.
  • This was marked by Wilhelm Wundt opening the first psychology laboratory at the University of Leipzig.