Day 20 of 150 Logic Difficulty 4/10

System 1 is fast and automatic; System 2 is slow and deliberate

Quick answer

System 1 is fast and automatic; System 2 is slow and deliberate. Today's question (Dual-process theory) asks about a finding from Stanovich, K. E., & West, R. F. in 2000. The correct option is Fast, automatic, intuitive — full explanation, primary source, and glossary cross-links below.

Today's question

In dual-process accounts of reasoning, "System 1" thinking is best described as:

  1. A Slow, deliberate, effortful
  2. B Fast, automatic, intuitive
  3. C Conscious step-by-step deduction
  4. D Restricted to mathematical reasoning
Reveal the answer and explanation

Correct: B — Fast, automatic, intuitive

Stanovich & West (2000) consolidated decades of dual-process research into the now-dominant System 1 (fast, automatic, associative) versus System 2 (slow, deliberate, rule-based) frame, popularized by Kahneman in 2011. System 1 generates an answer; System 2 monitors and can override — but only when engaged. The two-system metaphor is descriptive rather than anatomical: there is no single "System 1 region" in the brain.

About the source

Stanovich, K. E., & West, R. F. (2000). Individual differences in reasoning: Implications for the rationality debate?. Behavioral and Brain Sciences, 23(5), 645–665.

Every Cognition Bible question cites a primary source — a paper, book chapter, or monograph that exists, that we can point to on Google Scholar, and whose finding the question accurately summarizes. No fabricated authority strings, no name-drops without paper-level grounding.

More from the Cognition Bible

Done with today's question? Play the FOKIQ Daily — six puzzles across six cognitive domains, free, every day.