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Related Concept Videos

Bias01:22

Bias

6.5K
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...
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Blinding01:11

Blinding

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Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
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Randomized Experiments01:13

Randomized Experiments

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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
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Blind Procedures02:07

Blind Procedures

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Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
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Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

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Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
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Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

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Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
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Related Experiment Video

Updated: Nov 2, 2025

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
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Interpretation bias modification for hostility: A randomized clinical trial.

Martijn W van Teffelen1, Jill Lobbestael1, Marisol J Voncken1

  • 1Department of Clinical Psychological Science, Maastricht University.

Journal of Consulting and Clinical Psychology
|June 14, 2021
PubMed
Summary
This summary is machine-generated.

Cognitive bias modification for interpretation bias (CBM-I) showed modest support for reducing hostility, improving interpretation bias, and decreasing behavioral aggression in clinical populations. Further research is needed to confirm efficacy for self-reported hostility and general psychiatric symptoms.

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Area of Science:

  • Psychology
  • Clinical Psychology
  • Cognitive Behavioral Therapy

Background:

  • Hostility negatively impacts interpersonal functioning and psychopathology.
  • Cognitive bias modification for interpretation bias (CBM-I) may reduce hostility.
  • Limited efficacy studies exist for clinical hostility levels.

Purpose of the Study:

  • Investigate CBM-I effects on interpretation bias and hostility in clinical samples.
  • Assess CBM-I's impact on hostility symptoms, traits, and general psychiatric symptoms.
  • Explore CBM-I's carry-over effects on working alliance in psychotherapy.

Main Methods:

  • Two studies conducted: a feasibility study (N=29) and a randomized clinical trial (N=135).
  • Participants received CBM-I or an active control (AC).
  • Measures included interpretation bias, hostility, aggression, psychiatric symptoms, and working alliance.

Main Results:

  • CBM-I increased benign interpretation bias in both studies.
  • CBM-I partially reduced hostile interpretation bias in Study 2.
  • Study 2 showed greater reductions in behavioral aggression with CBM-I, but not self-reported hostility or psychiatric symptoms.

Conclusions:

  • CBM-I offers modest support as an intervention for hostility.
  • Evidence supports CBM-I for hostile interpretation bias and behavioral aggression.
  • Further research is warranted to confirm efficacy for self-reported hostility and general psychiatric symptoms.