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Related Concept Videos

Reasoning01:30

Reasoning

Reasoning is the action of thinking about something in a logical, sensible way. It is integral to problem-solving, decision-making, and critical thinking. Reasoning can be inductive or deductive. Reasoning involves transforming information into conclusions, which is essential for problem-solving, decision-making, and critical thinking.
Inductive reasoning involves deriving generalizations from specific observations. This type of reasoning helps form beliefs about the world. For example,...
Inductive Reasoning00:59

Inductive Reasoning

Inductive reasoning is a form of logical thinking that uses related observations to arrive at a general conclusion. It is uncertain and operates in degrees to which the conclusions are credible. As such, inductive arguments can be weak or strong, rather than valid or invalid, and conclusions can be used to formulate testable, falsifiable hypotheses.Inductive reasoning is common in descriptive science. A life scientist makes observations and records them. This data can be qualitative or...
Deductive Reasoning01:16

Deductive Reasoning

Deductive reasoning, or deduction, is the type of logic used in hypothesis-based science. In deductive reasoning, the pattern of thinking moves in the opposite direction from inductive reasoning. It uses a general principle or law to predict specific results. From these general principles, a scientist can predict specific results that remain valid as long as the general principles are correct.For example, a researcher can make specific predictions from the hypothesis "butterflies are attracted...
Reason and Intuition01:37

Reason and Intuition

The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...
Criteria for Causality: Bradford Hill Criteria - II01:28

Criteria for Causality: Bradford Hill Criteria - II

The Bradford Hill criteria serve as guidelines for establishing causative links in epidemiological research. Beyond Strength, Consistency, Specificity, and Temporality, key criteria also include Biological Gradient, Plausibility, Coherence, Experiment, and Analogy. These principles assist scientists in assessing the likelihood of causation in complex biological contexts. Below is a summary of these concepts:
Routes of Persuasion02:20

Routes of Persuasion

Persuasion is the process of changing our attitude toward something based on some kind of communication. Much of the persuasion we experience comes from outside forces. How do people convince others to change their attitudes, beliefs, and behaviors? What communications do you receive that attempt to persuade you to change your attitudes, beliefs, and behaviors?

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Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task
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Source credibility and syllogistic reasoning.

David E Copeland1, Kris Gunawan, Nicole J Bies-Hernandez

  • 1Department of Psychology, University of Nevada, Las Vegas, 4505 Maryland Pkwy Box 5030, Las Vegas, NV 89154, USA. david.copeland@unlv.edu

Memory & Cognition
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Area of Science:

  • Cognitive Psychology
  • Decision Making
  • Logic

Background:

  • Source credibility is a known factor influencing persuasion.
  • Previous research explored source credibility in conditional reasoning.
  • Belief bias affects syllogistic reasoning, where conclusions aligned with beliefs are favored.

Purpose of the Study:

  • To investigate the source credibility effect in syllogistic reasoning tasks.
  • To determine if source attributes (honesty, expertise) influence logical conclusion evaluation.

Main Methods:

  • Two experiments were conducted using syllogistic reasoning tasks.
  • Participants evaluated conclusions attributed to sources with varying credibility (honest/dishonest, expert/non-expert).
  • Conclusions were designed to be likely accepted to control for prior experience.

Main Results:

  • A significant source credibility effect was observed in both experiments.
  • This effect was particularly pronounced for invalid conclusions.
  • Source credibility influenced participants' reasoning, overriding logical validity.

Conclusions:

  • Source credibility, including honesty and expertise, impacts syllogistic reasoning.
  • Extraneous contextual information can influence logical judgment.
  • Findings align with belief bias and suggest susceptibility to source characteristics in reasoning.