
Media Bias/Fact Check - Detailed Review
News Tools

Media Bias/Fact Check - Product Overview
Introduction to Media Bias/Fact Check
Media Bias/Fact Check (MBFC) is a valuable tool in the news analysis and fact-checking category, aimed at helping users assess the credibility and bias of various media outlets.Primary Function
The primary function of MBFC is to evaluate and rate media sources based on their political bias and factual reporting accuracy. This is achieved through a comprehensive methodology that considers multiple aspects of a source’s content and presentation.Target Audience
MBFC is designed for anyone seeking to critically evaluate the news they consume. This includes general readers, researchers, students, and professionals who need to verify the credibility of news sources. It is particularly useful for those looking to avoid misinformation and ensure they are getting accurate and unbiased information.Key Features
Bias Ratings
MBFC uses a seven-point scale to rate the political bias of media sources, categorizing them as “extreme-left,” “left,” “left-center,” “least biased,” “right-center,” “right,” and “extreme-right.”Factual Reporting
The site rates the factual reporting of sources on a seven-point scale from “Very high” to “Very low,” based on criteria such as failed fact checks, sourcing, transparency, and one-sidedness or omission.Methodology
MBFC employs a weighted scoring system to assess media outlets. This includes evaluating the economic system, social values, straight news reporting balance, and editorial bias. For factual reporting, it considers failed fact checks, sourcing quality, transparency, and one-sidedness.Lateral Reading
MBFC encourages users to practice “lateral reading” by checking what other reliable sources say about a particular media outlet, rather than just relying on the outlet’s own self-description. This helps in contextualizing and verifying the information.Fact-Checking
While MBFC does not conduct original fact checks, it relies on fact-checkers affiliated with the International Fact-Checking Network (IFCN) to ensure accuracy. This alignment with IFCN’s Fact-checkers’ Code of Principles adds to the credibility of its ratings.Credibility Scoring
MBFC provides a credibility score based on factual reporting, bias, traffic, and longevity. Sources are rated as having high, medium, or low credibility, with additional considerations for press freedom in countries with significant censorship.Usage and Reception
MBFC is widely used in academic and professional settings, including studies on misinformation and media bias. Despite some criticisms regarding its methodology, it has shown high agreement with other independent fact-checking datasets and is recognized for its comprehensive coverage of biased and low factual news sources.
Media Bias/Fact Check - User Interface and Experience
User Interface Overview
The user interface of the Media Bias/Fact Check (MBFC) browser extensions and website is designed to be straightforward and user-friendly, with a focus on providing clear and actionable information about the bias and factual accuracy of online content.Browser Extensions
The MBFC browser extensions, available for Chrome and Firefox, offer a simple and intuitive interface. Here’s how they work:Color-Coded Icons
When you visit a website, the extension displays a color-coded icon in the browser toolbar. This icon indicates the bias rating of the site, such as Least Biased, Left Bias, Right Bias, or other categories like Conspiracy-Pseudoscience or Satire.Detailed Information
Clicking on the icon opens a popup that provides additional notes about the site, including its bias rating, factual reporting score, and other relevant details. This allows users to quickly assess the credibility of the source they are reading.Website Interface
The MBFC website itself is also user-friendly:Search Function
Users can search for specific websites or news sources to see their bias and factual reporting ratings. The search results are presented in a clear and easy-to-read format.Detailed Reports
Each source has a detailed report page that explains its bias rating, factual reporting score, and the methodology used to evaluate it. These reports include examples of headlines and articles analyzed, as well as notes on the source’s ownership, funding, and other relevant factors.Ease of Use
The interface is designed to be easy to use, even for those who are not tech-savvy. Here are some key points:Clear Visuals
The color-coded icons and simple ratings system make it easy for users to quickly identify the bias and factual accuracy of a source.Accessible Information
Detailed reports are available with just a click, providing users with in-depth information without requiring them to sift through complex data.Consistent Layout
The layout of both the browser extensions and the website is consistent, making it easy for users to find the information they need quickly.Overall User Experience
The overall user experience is centered around engagement and factual accuracy:Immediate Feedback
Users get immediate feedback on the bias and factual accuracy of the content they are reading, helping them make informed decisions about what they consume.Transparency
The methodology used by MBFC is transparent and explained in detail, which helps build trust with users.User Engagement
By providing clear and actionable information, MBFC encourages users to engage more critically with the content they consume, promoting a more informed and discerning audience. In summary, the Media Bias/Fact Check tools are designed to be easy to use, providing clear and immediate feedback on the bias and factual accuracy of online content, which enhances the overall user experience and promotes critical engagement with news sources.
Media Bias/Fact Check - Key Features and Functionality
Media Bias/Fact Check Overview
Media Bias/Fact Check (MBFC) is a comprehensive tool for assessing the political bias and factual reporting of media outlets. While it is not exclusively an AI-driven product, it incorporates several key features and methodologies that are relevant to the category of news tools.Main Features
Bias Assessment
MBFC uses a multi-layered approach to assess the political bias of media sources. This involves evaluating four main categories:- Use of wording and headlines: Analyzes how language is used to present information.
- Fact-checking and sourcing: Evaluates the reliability of sources and the accuracy of fact-checking.
- Choice of stories: Assesses the selection of news stories and their potential bias.
- Political affiliation: Determines the political leaning of the source.
Factual Reporting
The factual reporting score is derived from four weighted categories:- Failed Fact Checks: The number of fact checks that a source has failed.
- Sourcing: The quality and reliability of the sources used.
- Transparency: How transparent the source is about its methods and sources.
- One-Sidedness/Omission: The degree to which the source presents balanced information or omits certain facts.
Scoring Mechanism
MBFC uses a weighted scoring system for both bias and factual reporting. For bias, the scores range from -10 to 10, categorizing sources into various bias levels such as Extreme Left, Left, Left-Center, Least Biased, Right-Center, Right, and Extreme Right. For factual reporting, the scores range from 0 to 10, with categories like Very High, High, Mostly Factual, Mixed, and Low.Integration with AI and Human Oversight
While MBFC is primarily a human-driven assessment tool, it is often used in conjunction with AI tools in broader fact-checking studies. Its ratings have been compared and correlated with AI-driven fact-checking datasets, such as those from NewsGuard and BuzzFeed journalists, showing high agreement and inter-rater reliability.Detailed Reports and Transparency
Each evaluated source is provided with a detailed report explaining its characteristics and the reasoning behind its bias and factual reporting ratings. This transparency helps users understand the credibility and bias of the source.Use in Research and Studies
MBFC’s data is widely used in scientific studies on media bias, misinformation, and fact-checking. It has been utilized to create tools like the “Iffy Quotient” by researchers at the University of Michigan to track questionable sources on social media.Benefits
Comprehensive Assessment
MBFC offers a detailed and systematic assessment of media outlets, providing users with a clear understanding of both the political bias and factual reliability of the sources.High Reliability
Studies have shown that MBFC’s ratings correlate strongly with other fact-checking datasets, indicating a high level of reliability and accuracy.Human Judgment and Context
While AI tools can process large datasets quickly, MBFC’s human-driven approach ensures that context and subtleties are considered, reducing the risk of misinterpretation that can occur with purely AI-driven methods.Scalability and Consistency
Although not entirely AI-driven, MBFC’s methodology ensures consistency in evaluations, which is crucial for maintaining the integrity of fact-checking processes over time.Conclusion
In summary, Media Bias/Fact Check is a valuable tool for evaluating media sources, combining a systematic and transparent methodology with the benefits of human judgment and oversight, making it a reliable resource in the fight against misinformation.
Media Bias/Fact Check - Performance and Accuracy
Evaluating the Performance and Accuracy of Media Bias/Fact Check (MBFC)
Evaluating the performance and accuracy of Media Bias/Fact Check (MBFC) involves a detailed look at their methodology, scoring systems, and potential limitations.
Methodology and Scoring System
MBFC employs a comprehensive, weighted scoring system to assess media outlets’ ideological bias and factual reliability. Here are the key components:
Bias Assessment
MBFC uses a bias scale that evaluates sources based on their economic system, social values, straight news reporting balance, and editorial bias. Each category is weighted and scored to determine the overall bias rating.
Factual Reporting
The factual reporting score is derived from four categories: Failed Fact Checks, Sourcing, Transparency, and One-Sidedness/Bias Omission. These categories are weighted to provide an overall factuality rating, ranging from Very High to Very Low.
Credibility Rating
MBFC’s credibility rating combines factual reporting, bias, and traffic/longevity. This system assigns points based on these criteria to determine the overall credibility of a source.
Performance and Accuracy
Alignment with Human Evaluators
Studies have shown that MBFC’s ratings align well with human evaluators, particularly for sources with High or Low credibility ratings. However, there can be discrepancies for sources with Medium credibility, indicating some variability in how different models or evaluators might classify these sources.
Fact-Checking Mechanisms
MBFC’s fact-checking process involves analyzing fact-check records from credible third-party organizations, evaluating sourcing, transparency, and the presence of one-sidedness or bias. This approach helps in identifying and penalizing sources that promote misinformation or pseudoscience.
Limitations and Areas for Improvement
Subjectivity in Bias Assessment
While MBFC uses objective indicators to approximate bias, bias itself is inherently subjective. This means that different evaluators might interpret the same data differently, leading to potential inconsistencies.
Selection Bias in Fact-Checking
Like any fact-checking entity, MBFC can be accused of selection bias, where certain facts are preferred over others. This can affect the overall accuracy and fairness of the evaluations.
Cultural and Contextual Considerations
MBFC’s methodology is primarily tailored to the U.S. political landscape, which may not fully apply to other countries. This can lead to inaccuracies when evaluating sources from different cultural or political contexts.
Public Perception and Backfire Effect
Despite the accuracy of fact-checking, public perception can be resistant to factual corrections, especially if they challenge deeply-held beliefs. This “Backfire Effect” highlights the need for ongoing media literacy education to complement fact-checking efforts.
Engagement and Factual Accuracy
Transparency and Methodology Disclosure
MBFC encourages transparency by disclosing their methodology and scoring criteria. This helps build credibility and trust with their audience. However, continuous review and feedback are necessary to ensure that the methods remain unbiased and effective.
Educational Role
MBFC’s approach underscores the importance of media literacy. By educating the public on how to recognize bias and evaluate factual accuracy, MBFC contributes to a more informed and critical consumer base.
In summary, MBFC’s performance and accuracy are strong due to their systematic and transparent approach to evaluating media bias and factual reliability. However, the subjective nature of bias assessment, potential selection biases, and cultural contextual limitations are areas that require ongoing attention and improvement.

Media Bias/Fact Check - Pricing and Plans
Membership Plans
Media Bias/Fact Check (MBFC) offers several membership plans that cater to different needs and group sizes, focusing on ad-free access, exclusive content, and factual reporting analyses.
Individual Membership
For individuals, MBFC provides a few options:
- Ad-Lite Membership: $3 per month, which reduces the number of ads to just one and includes exclusive content.
- 6-Month Membership: $30, offering ad-free access and exclusive content.
Group Memberships
For groups, the pricing varies based on the number of members:
- Up to 10 Members: $25 per month. This plan allows up to 10 members to access MBFC ad-free and enjoy exclusive content.
- Up to 25 Members: $60 per month. This plan extends the benefits to up to 25 members.
- Up to 50 Members: $100 per month. This plan covers up to 50 members with the same benefits.
- More than 50 Members: $200 per month. For larger groups, this plan provides ad-free access and exclusive content for 50 members.
Features
Regardless of the plan, members get:
- Ad-Free Access: No ads or significantly reduced ads.
- Exclusive Content: Access to content that is not available to non-members.
- Factual Reporting Analyses: Detailed analyses of media outlets’ factual reporting and political bias.
Free Options
While there are no completely free membership plans, the website does offer free access to its bias ratings and some content for non-members. However, these users will see ads and do not have access to exclusive member content.

Media Bias/Fact Check - Integration and Compatibility
API Integration
MBFC offers an API that allows developers, researchers, and other stakeholders to access its extensive database of bias ratings and factual analyses in real-time. This API can be integrated into:
- News aggregators and analysis tools: To help users assess the bias of the news they read.
- Educational resources: For educators to incorporate real-time examples of media bias and factual reporting into their teaching.
- Research projects: To facilitate comprehensive studies on bias and factuality across different media outlets.
- Browser extensions: To display MBFC bias ratings and factual scores for news websites directly in the browser.
- Fact-checking services: To enrich evaluations with additional context on a source’s reliability and political leanings.
- News curation and recommendation platforms: To curate news feeds or recommend articles based on MBFC’s bias and factual ratings.
Compatibility Across Devices
The MBFC API and associated tools are designed to be highly compatible across various devices. For instance:
- Browser extensions: These can be used on desktops, laptops, and other devices that support browser extensions, ensuring users can access bias ratings and factual scores regardless of their device.
Educational and Public Use
MBFC’s data can be integrated into educational platforms and public awareness campaigns, making it accessible on a wide range of devices, from large desktop monitors to smartphones. This ensures that educators and the public can use the data seamlessly across different screen sizes and devices.
Fact-Checking and Research Tools
The integration of MBFC’s data into fact-checking platforms and research tools allows for real-time monitoring and analysis of media bias and factual accuracy. This can be done across multiple platforms, including social media, news websites, and other online content, ensuring that the data is accessible and usable in various contexts.
Conclusion
In summary, MBFC’s integration with various tools and its compatibility across different platforms and devices make it a versatile resource for enhancing media literacy, fact-checking, and research, all while prioritizing engagement and factual accuracy.

Media Bias/Fact Check - Customer Support and Resources
Customer Support
Submitting a Fact Check
Reporting Errors or Inaccuracies
Additional Resources
Bias and Factual Reporting Ratings
Fact Check Resources
Lateral Reading Tool
Educational and Research Resources
By utilizing these resources, users can make more informed decisions about the media they consume and ensure a higher level of engagement with factual and accurate information.

Media Bias/Fact Check - Pros and Cons
Advantages of Media Bias/Fact Check
Comprehensive Scoring System
Media Bias/Fact Check (MBFC) employs a detailed, weighted scoring system to evaluate media outlets based on several dimensions, including economic system, social values, straight news reporting balance, and editorial bias. This system helps provide a clear and transparent assessment of a source’s political alignment and commitment to factual reporting.
Factual Reporting Scoring
MBFC uses a factual reporting score derived from categories such as failed fact checks, sourcing, transparency, and one-sidedness/omission. This scoring mechanism helps readers gauge the reliability of a source, categorizing them from “Very High” to “Very Low” in terms of factual accuracy.
Credibility Rating
The credibility of a media source is assessed using a 10-point scale that prioritizes factual reporting, followed by bias, and then traffic/longevity. This rating system provides a comprehensive view of a source’s overall credibility.
Wide Coverage and Consistency
MBFC covers a large dataset of media outlets and maintains consistent ratings over time. Research has shown that MBFC’s ratings correlate strongly with other fact-checking datasets, such as NewsGuard, indicating a high level of reliability.
Use in Research and Studies
MBFC’s ratings are widely used in scientific studies and research on misinformation, media bias, and factual reporting. Its data has been integrated into tools like the “Iffy Quotient” to track the prevalence of fake news and questionable sources on social media.
Disadvantages of Media Bias/Fact Check
Subjective Analysis
Despite using objective indicators, MBFC’s methodology involves subjective analysis, which can leave room for human biases or inconsistencies to influence the ratings. Critics have described MBFC’s assessments as “armchair media analysis” and noted the potential for subjective biases.
Criticism of Methodology
MBFC’s method has been criticized for not being scientifically rigorous. Some studies and reviews have pointed out that while MBFC is widely cited, its approach is not considered scientific and may misfire in certain contexts.
U.S.-Centric Bias
The political bias ratings are primarily tailored to the U.S. political landscape, which may not be applicable or relevant in other countries where political terms and ideologies have different meanings. This can limit the global applicability of MBFC’s ratings.
Potential for Human Biases
Although MBFC aims to provide objective assessments, the involvement of human reviewers can still introduce biases. Additionally, the subjective nature of some categories, such as the use of loaded language, can be open to interpretation.
In summary, while Media Bias/Fact Check offers a comprehensive and systematic approach to evaluating media bias and factual reporting, it is not without its limitations, particularly in terms of subjective analysis and a U.S.-centric focus.

Media Bias/Fact Check - Comparison with Competitors
Comparing Media Bias/Fact Check (MBFC) with Competitors
When comparing Media Bias/Fact Check (MBFC) with its competitors in the news tools and fact-checking category, several key aspects and unique features come to the forefront.Methodology and Scoring System
MBFC uses a comprehensive, weighted scoring system to assess media outlets’ ideological bias and factual reliability. This system includes categories such as Economic System, Social Values, Straight News Reporting Balance, and Editorial Bias, each weighted to calculate a total bias score. In contrast, AllSides employs a multipartisan, scientific analysis to rate bias, using methods like Editorial Reviews, Blind Bias Surveys, independent reviews, and third-party research. AllSides focuses on revealing the media bias of fact checkers and media outlets, helping users consume a balanced news diet.Fact-Checking Approach
MBFC’s factual reporting score is derived from categories such as Failed Fact Checks, Sourcing, Transparency, and One-Sidedness/Omission. Each category is scored on a scale of 0–10, with the weighted average determining the overall factuality rating. Ad Fontes Media, another competitor, uses the Media Bias Chart® to rate news sources for bias and reliability. This chart visually represents the bias and reliability of various news sources, but it does not rate accuracy or credibility explicitly.User Interface and Tools
MBFC provides detailed reports on media outlets but does not offer interactive tools for users to compare or analyze content directly on their site. In contrast, Originality.ai offers a range of tools, including a text comparison feature that helps users detect plagiarism and ensure the originality of their content. This tool supports various file formats and is designed for ease of use across different devices.Engagement and Factual Accuracy
All of these platforms prioritize factual accuracy, but they differ in how they engage users. MBFC and AllSides focus on providing detailed reports and charts to help users make informed decisions about the media they consume. AllSides, in particular, aims to free users from filter bubbles by offering multiple viewpoints. Originality.ai, on the other hand, engages users through practical tools that help in maintaining the originality and authenticity of written work, which indirectly supports factual accuracy by preventing plagiarism and misinformation.Alternatives and Unique Features
- AllSides: A strong alternative for those seeking a balanced news diet. It offers a Fact Check Bias Chart and a Media Bias Chart, which are unique in helping users identify different perspectives across the political spectrum.
- Ad Fontes Media: Provides the Media Bias Chart®, which is a visual tool for assessing the bias and reliability of news sources. This chart is particularly useful for a quick overview of where various news sources stand in terms of bias and reliability.
- Originality.ai: Offers practical tools for text comparison and plagiarism checks, making it an excellent choice for writers, bloggers, and publishers who need to ensure the originality of their content.

Media Bias/Fact Check - Frequently Asked Questions
Frequently Asked Questions about Media Bias/Fact Check
Who founded Media Bias/Fact Check?
Media Bias/Fact Check was founded in 2015 by Dave M. Van Zandt.How does Media Bias/Fact Check determine the bias of a source?
Media Bias/Fact Check uses a combination of objective measures and subjective analysis to determine the bias of a source. They consider four main categories: (1) use of wording and headlines, (2) fact-checking and sourcing, (3) choice of stories, and (4) political affiliation. Additional subcategories include bias by omission, bias by source selection, and loaded use of language. The methodology is not scientifically proven but has shown consistency in field tests.What are the credentials of the Media Bias/Fact Check team?
The team members at Media Bias/Fact Check are not professional journalists. They are college-educated individuals from various fields who share an interest in keeping the media accountable. This is seen as an advantage as they are media consumers themselves.How is Media Bias/Fact Check funded?
Media Bias/Fact Check is financially independent, partly due to the support of third-party advertising. For more detailed information on funding, you can refer to their funding page.Does Media Bias/Fact Check have any employees?
Media Bias/Fact Check has a small team of volunteers who perform source research, writing, and assist in fact-checking. Currently, there are five volunteers involved.How many media sources does Media Bias/Fact Check evaluate?
Media Bias/Fact Check provides bias and factual reporting ratings for over 8,000 media sources.What ratings does Media Bias/Fact Check use?
Media Bias/Fact Check uses a seven-point scale for “Factual Reporting” ratings, ranging from “Very high” to “Very low.” For political bias, the ratings include “extreme-left,” “left,” “left-center,” “least biased,” “right-center,” “right,” and “extreme-right.” Additional categories include “Pro-science,” “Conspiracy/Pseudoscience,” “Questionable Sources,” and “Satire.”How accurate are the ratings from Media Bias/Fact Check?
Despite some criticism, scientific studies have shown that Media Bias/Fact Check’s ratings correlate strongly with other independent fact-checking datasets, such as those from NewsGuard and BuzzFeed journalists. The ratings have been found to have high agreement with other fact-checking datasets.Can Media Bias/Fact Check be used as a reliable tool for assessing news sources?
Yes, Media Bias/Fact Check is widely used by researchers and reputable news organizations as a tool for assessing bias and factual reporting. While it has its limitations and criticisms, it is considered a useful resource for evaluating the credibility of news sources.How can I use Media Bias/Fact Check to evaluate unknown news sources?
You can use Media Bias/Fact Check by looking up the source on their website. They provide detailed explanations for their ratings, including information on the source’s bias, factual reporting, and any history of failed fact checks. This can help you contextualize and verify the information from the source.
Media Bias/Fact Check - Conclusion and Recommendation
Final Assessment of Media Bias/Fact Check (MBFC)
Media Bias/Fact Check (MBFC) is a valuable tool for individuals seeking to evaluate the credibility and bias of news sources. Here’s a breakdown of its benefits and who would most benefit from using it.Benefits and Features
- Comprehensive Ratings: MBFC provides two scores for over 8,000 media sources: a bias rating and a factual reporting rating. These ratings help users quickly assess the reliability and ideological lean of a news source.
- Contextual Information: Each entry includes detailed explanations and contextual information, such as funding sources, audience demographics, and past fact-checking records. This helps users make informed decisions about the credibility of the news they consume.
- Lateral Reading: MBFC aligns with the recommended practice of “lateral reading,” where users consult external sources to verify the credibility of a publication. This approach is endorsed by research from Stanford University.
- Financial Independence: Despite some criticisms, MBFC claims financial independence, supported by third-party advertising, which helps maintain its neutrality.
Who Would Benefit Most
- General News Consumers: Anyone looking to ensure the news they read is credible and unbiased can benefit from MBFC. It helps in identifying sources with a history of good reporting and those that may have a particular ideological lean.
- Students and Researchers: Students and researchers can use MBFC to evaluate sources for academic work, ensuring they rely on trustworthy information.
- Media Literacy Educators: Educators teaching media literacy can use MBFC as a tool to demonstrate how to critically evaluate news sources and recognize bias.
Overall Recommendation
MBFC is a useful tool for anyone prioritizing engagement and factual accuracy in their news consumption. Here are some key points to consider:- Ease of Use: The website is straightforward to use, providing clear ratings and explanations that help users quickly assess a source’s credibility.
- Consistency: Studies have shown that news rating services, including MBFC, are highly consistent with one another, indicating they can be a good indicator of news quality.
- Limitations: While MBFC is valuable, it is important to use it with caution. Some critics argue that credibility scores can oversimplify the complex issue of online misinformation. Therefore, it should be part of a broader toolkit for media literacy.