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Related Concept Videos

Sympathetic Activation01:16

Sympathetic Activation

The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
Bias01:22

Bias

Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected or encouraged over others in sampling or testing. Bias can occur during any research phase, including study design, data collection, analysis, and publication.
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
Motivational Bias01:25

Motivational Bias

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,...
Self-Serving Bias01:29

Self-Serving Bias

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...
Correspondence Bias01:17

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Correspondence bias, also referred to as the fundamental attribution error, describes the tendency to attribute another person’s behavior to internal characteristics rather than situational influences. This cognitive bias leads individuals to overlook external factors that may be influencing actions, thereby fostering potentially inaccurate assessments of others’ intentions and dispositions.Empirical Evidence for Correspondence BiasResearch has consistently demonstrated the prevalence of...
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Sympathetic Signaling

Sympathetic signaling, a vital part of the autonomic nervous system, plays a crucial role in mobilizing the body's resources in response to stress or emergencies. It involves the transmission of nerve impulses from sympathetic preganglionic fibers to postganglionic fibers. This results in the release of specific neurotransmitters and activation of adrenergic receptors.
Sympathetic preganglionic fibers release the neurotransmitter acetylcholine (ACh) onto the ganglionic neurons in the...

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Related Experiment Video

Updated: Jul 11, 2026

Quantifying Acute Changes in Renal Sympathetic Nerve Activity in Response to Central Nervous System Manipulations in Anesthetized Rats
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Sympathetic bias.

David M Levy1, Sandra J Peart

  • 1Center for Public Choice, George Mason University, Fairfax, VA 22030, USA, DavidMLevy@gmail.com

Statistical Methods in Medical Research
|October 11, 2007
PubMed
Summary
This summary is machine-generated.

Investigator bias in statistics can arise from outlier handling, tempting statisticians to favor clients. This study models this bias and suggests solutions for unbiased statistical analysis.

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Area of Science:

  • Statistics
  • Research Methodology

Background:

  • Investigator bias poses a challenge in statistical analysis.
  • Standard methods for handling outliers may inadvertently introduce new forms of bias.
  • Understanding the motivations behind biased decisions is crucial.

Purpose of the Study:

  • To examine investigator bias within a statistical framework.
  • To model the 'approbation seeking statistician' and their susceptibility to bias.
  • To identify contexts conducive to investigator bias and propose mitigation strategies.

Main Methods:

  • Developing a stylized model of investigator bias.
  • Analyzing the interplay between outlier detection and bias.
  • Exploring the psychological factors influencing statistical judgment.

Main Results:

  • Textbook outlier solutions can create new avenues for investigator bias.
  • Statisticians seeking client approval may compromise disciplinary standards.
  • Specific contexts were identified where investigator bias is likely to occur.

Conclusions:

  • Tentative suggestions are offered to address investigator bias.
  • Further research is needed to refine the understanding and mitigation of this bias.
  • Emphasizing ethical guidelines and robust methodologies is key to maintaining statistical integrity.