Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Blind Procedures02:07

Blind Procedures

10.8K
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...
10.8K
Bias01:22

Bias

4.7K
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...
4.7K
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

481
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:  
481
Confirmation Biases01:31

Confirmation Biases

5.6K
The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
5.6K
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

156
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,...
156
Ethics in Research01:56

Ethics in Research

23.1K
Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
23.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Robust Bayesian multilevel meta-analysis: Adjusting for publication bias in the presence of dependent effect sizes.

Behavior research methods·2026
Same author

Investigating the replicability of the social and behavioural sciences.

Nature·2026
Same author

Investigating the analytical robustness of the social and behavioural sciences.

Nature·2026
Same author

Truncating the likelihood allows outlier exclusion without overestimating the evidence in the Bayes factor t test.

Psychological methods·2025
Same author

Informative data visualization with raincloud plots in JASP.

Behavior research methods·2025
Same author

Introducing synchronous robustness reports.

Nature human behaviour·2025

Related Experiment Video

Updated: Aug 12, 2025

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K

Reducing bias, increasing transparency and calibrating confidence with preregistration.

Tom E Hardwicke1, Eric-Jan Wagenmakers2

  • 1Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands. hardwickete@gmail.com.

Nature Human Behaviour
|January 27, 2023
PubMed
Summary

Preregistration of research plans helps prevent bias by ensuring decisions are made before outcomes are known. This scientific integrity practice increases transparency and reliability in research findings.

More Related Videos

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
10:22

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements

Published on: September 7, 2019

8.3K
Improving Small RNA-seq: Less Bias and Better Detection of 2'-O-Methyl RNAs
08:49

Improving Small RNA-seq: Less Bias and Better Detection of 2'-O-Methyl RNAs

Published on: September 16, 2019

7.7K

Related Experiment Videos

Last Updated: Aug 12, 2025

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K
Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
10:22

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements

Published on: September 7, 2019

8.3K
Improving Small RNA-seq: Less Bias and Better Detection of 2'-O-Methyl RNAs
08:49

Improving Small RNA-seq: Less Bias and Better Detection of 2'-O-Methyl RNAs

Published on: September 16, 2019

7.7K

Area of Science:

  • Scientific methodology
  • Research integrity
  • Meta-science

Background:

  • Scientific studies offer flexibility in design, analysis, and interpretation.
  • This flexibility can lead to selective reporting, introducing bias and potentially misleading results.
  • Scientists may favor positive outcomes while suppressing inconvenient or negative findings.

Purpose of the Study:

  • To explore the concept and benefits of preregistration in scientific research.
  • To review the historical development and pragmatic functions of preregistration across disciplines.
  • To provide recommendations for implementing preregistration among scientists and journal editors.

Main Methods:

  • Review of the historical evolution of preregistration in medicine, psychology, and other fields.
  • Clarification of the functional aspects of preregistration.
  • Discussion of relevant meta-research findings.

Main Results:

  • Preregistration reduces bias by promoting outcome-independent decision-making.
  • It enhances research transparency, allowing for better assessment of bias.
  • Preregistration helps calibrate confidence in scientific outcomes.

Conclusions:

  • Preregistration is a crucial tool for enhancing scientific rigor and combating bias.
  • Adoption of preregistration practices is recommended for scientists and journal editors.
  • Increased transparency through preregistration bolsters the reliability of research findings.