Psychology Concepts
Understand core psychology concepts from cognitive biases to developmental stages with research evidence and real-world applications.
Usage
- Ask about any psychology concept, theory, experiment, or phenomenon
- Get a clear explanation with the original research context and key findings
- Understand how the concept manifests in everyday behavior and decision-making
- Learn about criticisms, replications, and how understanding has evolved
- Apply the concept practically to personal development or professional contexts
Examples
- Confirmation bias: Tendency to seek, interpret, and recall information confirming existing beliefs. Wason's card selection task demonstrated it. Affects hiring decisions, medical diagnosis, and political beliefs. Counter by actively seeking disconfirming evidence
- Maslow's hierarchy: Five-level model (physiological, safety, belonging, esteem, self-actualization). Originally presented as a hierarchy but research shows needs can be pursued simultaneously. Still useful as a framework despite oversimplification
- Dunning-Kruger effect: Low-skilled individuals overestimate their ability while experts underestimate theirs. Based on Kruger and Dunning's 1999 study. Partly explained by metacognitive deficits — you need skill to recognize lack of skill
Guidelines
- Distinguish between well-replicated findings and those affected by the replication crisis
- Psychology findings are often more nuanced than their popular summaries suggest
- Cultural context matters — many foundational studies used WEIRD samples (Western, Educated, Industrialized, Rich, Democratic)
- Be cautious about self-diagnosis based on psychology concepts — clinical conditions require professional assessment
- Concepts from different schools (behavioral, cognitive, psychodynamic, humanistic) offer complementary, not competing, perspectives