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Related Concept Videos

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Cognitive bias results from limitations in thinking and information processing, leading to systematic errors in judgment. Conversely, motivational bias stems from personal desires or emotions, causing distortions in perception to align with self-interest. Motivational bias influences how individuals perceive and attribute causes to events, often shaped by personal needs, goals, and self-esteem preservation. This bias can distort judgment, leading to inaccurate assessments of success, failure,...
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Self-serving bias is a cognitive phenomenon in which individuals attribute positive outcomes to internal factors such as their abilities, intelligence, or effort while attributing negative outcomes to external circumstances. This cognitive distortion helps maintain self-esteem but can also impede objective self-assessment.Theoretical Explanations of Self-Serving BiasTwo primary theories explain the self-serving bias: the cognitive explanation and the motivational explanation.The cognitive...
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Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now? 
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Unrealistic optimism bias is the tendency to overestimate the likelihood of positive outcomes. This cognitive bias makes individuals believe they are less likely to experience failures, setbacks, or risks and more likely to succeed than others. For example, people may assume they are less prone to health issues, accidents, or financial struggles than their peers, even when they share similar risk factors.One key component of this bias is the above-average effect, where individuals perceive...
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The source of the truth bias: Heuristic processing?

Chris N H Street1, Jaume Masip

  • 1University of British Columbia, Canada.

Scandinavian Journal of Psychology
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People tend to believe others are truthful due to truth bias. This bias lessens when statements are evaluated over time, not due to processing shifts, but based on perceived internal consistency.

Keywords:
Dual-process theoryconsistencydeception detectionheuristic processingsmart lie detectortruth bias

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Area of Science:

  • Cognitive Psychology
  • Social Psychology
  • Behavioral Science

Background:

  • The truth bias leads people to overestimate honesty.
  • Truth bias decreases when evaluating statements across multiple points.
  • Previous research suggested a shift from heuristic to analytical processing.

Purpose of the Study:

  • To investigate the mechanisms underlying the decline of truth bias.
  • To contrast the heuristic-analytic model (HAM) with alternative explanations.
  • To identify factors influencing truth bias reduction during statement evaluation.

Main Methods:

  • Four experiments were conducted to test different hypotheses.
  • Raters evaluated statements at multiple points.
  • Factors such as processing time and communication channel were manipulated.
  • Internal consistency of statements was assessed.

Main Results:

  • The decline in truth bias was attributed to the rater's processing style, not speaker deception.
  • The reduction in bias was independent of processing time and communication channel.
  • Evidence supported the role of perceived internal consistency in modulating truth bias.

Conclusions:

  • The heuristic-analytic model (HAM) does not fully explain the decline in truth bias.
  • Perceived internal consistency of a statement is a key factor in reducing truth bias.
  • Rater's processing style, rather than speaker cues, drives the decrease in bias over time.