Source Credibility, Reliability, and Bias

Types of Information Sources

Primary, Secondary, and Tertiary

Primary Sources

Firsthand, original accounts of a topic; authoritive sources representing original thinking the researcher can interpret.

Secondary Sources

Sources that summarize, interpret, analyze, or comment on information found in primary sources.

Tertiary Sources

Starting points or supplemental aids that index, abstract, organize, compile, or digest other sources and are chiefly used to list, summarize, or repackage.

Examples of Primary Sources

Artifacts, Scholarly Journals, Documents, Diaries, Manuscripts, Autobiographies, Recordings, Interviews, Speeches, Case Laws, Legislation, and Statistical Data.

Examples of Secondary Sources

Edited Works, Books, Articles, Literary Criticism and Interpretation, Reviews of Law and Legislation, Political Analyses and Commentaries, Dissertations, and Opinion Pieces.

Examples of Tertiary Sources

Almanacs, Encyclopedias, Dictionaries, Guidebooks, and Manuals.

Common Types of Media Bias

Political, Commercial, and Ideological

Political Bias

Favoring a particular political position.

Indicators of Political Bias

Use of partisan language, Selective reporting of facts, Emphasis uncertain political figures or parties

Commercial Bias

Prioritizing content for revenue.

Indicators of Commercial Bias

Sensationalized headlines, Clickbait content, and Excessive advertising

Ideological Bias

Shaping content to satisfy an agenda.

Indicators of Ideological Bias

Use of loaded language, Omission of opposing viewpoints, and Appeals to emotion rather than facts

Step-by-step Guide

Identify different source types

Detect bias

Employ fact-checking techniques

Evaluate currency

Determine relevance

Identify the purpose in intended audience

Draw conclusions from source evaluation

Identify Different Source Types

Gather a mix of scholarly articles, books, and reputable websites for your research.

Distinguish among primary secondary and tertiary sources.

Understand importance of peer-reviewed sources and academic research.

Detect Bias

Recognize political, commercial, and ideological bias.

Look for bias indicators such as language, tone, and omission of facts.

Note any strong opinions or emotional appeals.

Be aware of confirmation bias in yourself and sources

False Balance

Often seen in science or political reporting and can mislead audiences about expert knowledge.

Fact-checking Techniques

Cross-reference with credible sources.

Verify data and statistics.

Identify the original source of information when possible

Evaluate Currency

Check publication dates to insure the information is current.

Consider how your citations contribute to the broader academic conversation in your field.

Understand the concept of "evergreen" content and when it's applicable.

Assess the impact of time on the source's relevance to your research question.

Consider wether more recent sources might provide updated information or perspectives.

Currency Requirements

Different fields have varying "shelf lives" for information.

Rapidly changing fields like technology or medicine, recent sources within 5 years are often crucial.

Historical or philosophical studies may rely on much older sources that retain their relevance

Evergreen Content

Content that remains relevant over long periods.

Includes fundamental theories, basic principles, or historical events.

Such content can be valuable regardless of its age, especially for providing context or foundational knowledge in a certain field.

Determine Relevance

Assess whether the source directly addresses your research question.

Identify the Purpose and Intended Audience

Determine whether the source's target audience and purpose (to inform, persuade, or entertain).

Consider how these factors influence the content.

Identify potential conflicts of interest in the author or publisher.

Understand the funding sources for research and their potential impact

Draw Conclusions from Source Evaluation

Synthesize your findings to make informed decisions about using each source.

Use triangulation (multiple sources) to verify important information.

Learn to weigh conflicting information from different credible sources

Tips and Best Practices

Obtain information from a variety of sources.

Always verify information from multiple credible sources.

Question assumptions and consider multiple perspectives.

Use validated fact-checking tools.

Analyze source's language, tone, and framing of information.

Common Pitfalls

Relying solely on one source.

Accepting information without verification.

Ignoring potential bias in seemingly credible sources.

Using outdated information.

CRAAP Test

Helps you evaluate sources across five key areas: Currency, Relevance, Authority, Accuracy and Purpose. East elements help you determine whether a source is reliable enough for your research.

CRAAP Test Elements

Currency, Relevance, Authority, Accuracy, and Purpose

Currency

Asks whether information is up-to-date.

Relevance

Asks if the information directly relates to your topic.

Authority

Asks who the author is and if they are credible.

Accuracy

Asks whether the information is correct and supported by evidence.

Purpose

Asks why this information is/was created and if it is biased.