8th Grade Writing (Common Core) • Writing

Credible Research: Search, Evaluate, Cite

Master the skills to find trustworthy sources and give proper credit for your research.

Middle School English emblem with an open book, a writing pencil, and spelling check.
Inside this lesson 10 sections 5 questions 6 figures

SECTION 1

The Evolution of Information and Research

Imagine trying to write a report about ancient Egypt without any books, computers, or libraries. You'd have to rely on what people told you or what you remembered hearing somewhere. This was the reality for most of human history. People shared information through stories, and it was hard to know what was true and what had been changed over time.

3200 BCE • First Written Records

Ancient civilizations like Mesopotamia and Egypt began keeping written records. This was the start of preserving information for future researchers.

1440s • Printing Press Revolution

Johannes Gutenberg's printing press made it possible to create multiple copies of the same book. Now information could spread more widely and accurately.

1665 • First Academic Journals

Scientists began publishing their research in peer-reviewed journals. Other experts could check their work before it was published.

1990s • Internet Era Begins

The World Wide Web made it possible for anyone to publish anything. This created amazing opportunities but also new challenges in determining what information to trust.

Today, we have access to more information than any generation in history. But with this amazing resource comes a big responsibility: learning how to find, evaluate, and properly credit credible sources. Without these skills, we can easily spread false information or accidentally steal someone else's ideas.

SECTION 2

Core Principles of Research

Good research is built on three fundamental pillars. Think of them like the legs of a stool — if any one is missing, the whole thing becomes unstable. These principles help ensure that your writing is trustworthy and gives proper credit where it's due.

1

Strategic Searching

Using the right keywords and databases to find information efficiently. This means knowing where to look and what search terms will give you the best results.
2

Critical Evaluation

Checking whether sources are reliable, current, and unbiased. Not every website or article contains accurate information, so you need to be a detective about what you read.
3

Proper Citation

Giving credit to original authors and providing a clear trail so readers can find your sources. This protects you from plagiarism and helps others verify your information.
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KEY TAKEAWAY

Research is like being a detective solving a case. You need to know where to look for clues (strategic searching), determine which clues are trustworthy (critical evaluation), and document your evidence so others can follow your reasoning (proper citation). Just like a detective's report, your research is only as strong as the quality of your sources and how well you present them.

SECTION 3

The Research Process Visualization

SEARCHFind SourcesUse KeywordsEVALUATECheck QualityVerify FactsCITEGive CreditDocument SourcesRESEARCH QUALITY CHECKLISTWHOWho wrote this? Are they an expert?What are their qualifications?WHATWhat type of source is this?Is it a scholarly article or blog post?WHENWhen was this published?Is the information current?WHYWhy was this written?Is it trying to sell something or persuade?
The research process flows in three main stages: searching for sources, evaluating their quality, and citing them properly. The quality checklist in the bottom section shows the key questions to ask about every source you consider using.

This diagram shows how good research is a step-by-step process, not just a quick Google search. Each stage builds on the previous one. You can't properly evaluate sources until you've found them, and you can't cite them correctly until you've determined they're worth using. The checklist questions help you become a critical thinker about the information you encounter.

SECTION 4

Strategic Searching Techniques

Finding good sources isn't about typing random words into Google and hoping for the best. Professional researchers use specific techniques to locate the most reliable and relevant information. Learning these strategies will save you time and help you find better sources for your projects.

Keyword Development

Start by brainstorming all the different ways people might describe your topic. If you're researching climate change, don't just search for "climate change." Try related terms like "global warming," "greenhouse effect," "carbon emissions," and "environmental science." Scientists and experts might use different vocabulary than what you learned in class.

Search TechniqueHow It WorksExample
Quotation MarksSearches for the exact phrase in that order"renewable energy"
AND OperatorResults must include both termspollution AND ocean
OR OperatorResults can include either termtornado OR hurricane
Site-SpecificSearches only within a specific websitesite:nasa.gov mars

Common search operators that help you find more precise results

Database vs. Search Engine Strategy

Not all information lives on Google. Academic databases contain scholarly articles that have been reviewed by experts. Your school library probably gives you access to databases like JSTOR, ProQuest, or EBSCO. These sources are generally more reliable than random websites because they go through a quality-control process before publication.

SECTION 5

Understanding Different Source Types

Not all sources are created equal. Understanding the differences between source types helps you choose the right kind of evidence for your research and evaluate how trustworthy each source might be.

SOURCE RELIABILITY HIERARCHYPRIMARY SOURCESOriginal documents, dataResearch studies, interviewsMOST RELIABLESECONDARY SOURCESAnalysis of primary sourcesTextbooks, encyclopediaGENERALLY RELIABLETERTIARY SOURCESSummaries, indexesWikipedia, almanacsSTARTING POINT ONLYQUALITY INDICATORS TO LOOK FORAuthor credentials and expertisePublication date (recent for current topics)Peer review or editorial oversightClear citations and referencesBias or agenda-driven contentEmotional language or opinions
Sources form a reliability hierarchy from primary sources (most reliable) to tertiary sources (good for starting research but not strong evidence). The green indicators show what makes a source trustworthy, while red indicators warn of potential problems.
Source TypeExamplesBest Used For
Scholarly ArticlesJournal of Environmental Science, Nature, Scientific AmericanCurrent research findings, expert analysis
BooksTextbooks, biographies, published researchComprehensive background information
Government SourcesCensus data, NASA reports, CDC guidelinesOfficial statistics and policy information
News ArticlesNew York Times, BBC News, ReutersRecent events and current developments
WebsitesOrganization sites, educational institutionsGeneral information (verify with other sources)

Different source types and their most appropriate uses in research

SECTION 6

Evaluating Sources: A Step-by-Step Example

Let's work through a real example of evaluating sources. Imagine you're writing a research paper about the effects of social media on teenagers. You've found several potential sources, and now you need to determine which ones are reliable enough to use in your paper.

Source Evaluation: Social Media Research

  1. 1

    Step 1 — Identify Your Sources

    You found three potential sources: (A) A blog post titled "Social Media is Destroying Our Kids" on parentingblog.com, (B) A research study from the Journal of Adolescent Health called "Social Media Use and Mental Health Among Teenagers," and (C) A Wikipedia article about "Social Media and Youth."
    Three sources to evaluate using our quality checklist
  2. 2

    Step 2 — Apply the WHO Test

    Source A: Written by "Sarah M.," a mother of three with no listed credentials. Source B: Written by Dr. Amanda Chen, PhD in Psychology, affiliated with Stanford University. Source C: Wikipedia article with multiple contributors, some anonymous.
    Source B has the strongest author credentials
  3. 3

    Step 3 — Apply the WHAT Test

    Source A: Personal blog post with opinions and anecdotes. Source B: Peer-reviewed research study with data from 2,000 participants. Source C: Encyclopedia entry that summarizes other sources but provides no original research.
    Source B is original research; Source C could be a starting point
  4. 4

    Step 4 — Apply the WHEN Test

    Source A: Published last month. Source B: Published in 2023 (recent for academic research). Source C: Last edited two weeks ago, but many references are from 2015-2018.
    Sources A and B are current; Source C has mixed currency
  5. 5

    Step 5 — Apply the WHY Test

    Source A: Appears designed to get clicks and express personal frustration. Uses emotional language like "destroying." Source B: Written to contribute to scientific understanding, follows research methodology. Source C: Intended to provide neutral information.
    Source B is most objective; Source A shows clear bias
  6. 6

    Step 6 — Make Your Decision

    Based on all four criteria, Source B (the research study) is the strongest for your paper. It has expert authorship, original research, current data, and objective purpose. Source C could be useful for background reading and finding additional sources. Source A should not be used as evidence in an academic paper.
    Use Source B as primary evidence; consider Source C for background

SECTION 7

Understanding Citation Styles and Methods

Citing sources properly serves two important purposes: it gives credit to the original authors and helps your readers find the same information you used. Different academic fields prefer different citation styles, but they all accomplish the same basic goals.

Citation StyleUsed InIn-Text FormatExample
MLAEnglish, Literature, HumanitiesAuthor's last name and page number(Smith 42)
APAPsychology, Science, Social ScienceAuthor's last name and publication year(Johnson, 2023)
ChicagoHistory, Art, MusicNumbered footnotes¹ or (Wilson 2022, 15)

Major citation styles and their typical uses

The Two Parts of Citation

Every citation system has two parts: in-text citations that appear right in your paper, and a bibliography or works cited page at the end with complete information. Think of the in-text citation as a quick reference and the bibliography as the full address where readers can find your source.

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Important Note

Always check with your teacher about which citation style to use for your assignment. Using the wrong style isn't usually a major problem, but using no citations at all can result in plagiarism charges. When in doubt, cite your source!
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KEY TAKEAWAY

Citation is like giving someone's home address. The in-text citation is like saying "my friend Sarah said this" — it lets people know where the information came from. The full bibliography entry is like writing down Sarah's complete address, phone number, and email — it gives all the details someone would need to contact her directly. Without proper citations, you're essentially claiming that all the ideas in your paper came from your own brain, which usually isn't true!

SECTION 8

Building Advanced Research Skills

As you become more comfortable with basic research skills, you can start using more sophisticated techniques that professional researchers and college students rely on. These advanced strategies will make your research more thorough and help you find sources that other students might miss.

Basic SkillAdvanced VersionWhy It Matters
Google searching with keywordsUsing multiple databases and library catalogsAccess to scholarly sources not indexed by Google
Reading the first few sources you findFollowing citation trails to find related workDiscover the key studies and authors in your field
Using one citation style consistentlyUsing citation management tools like ZoteroAutomatically format citations and organize sources
Accepting sources at face valueCross-checking facts across multiple sourcesCatch errors and identify areas of debate

How basic research skills evolve into advanced techniques

Citation Trail Following

One of the most powerful research techniques is following citation trails. When you find a good source, look at its bibliography to see what sources the author used. This can lead you to the most important studies and experts in your research area. You can also search for newer articles that cite your source — this shows you how the research has developed since your source was published.

Evaluating Conflicting Information

As you research more complex topics, you'll often find sources that disagree with each other. This isn't necessarily a problem — it's actually normal in many fields where research is ongoing. When you encounter conflicting information, look for patterns: Which view is supported by more recent research? Which sources have stronger methodology? Acknowledging different perspectives in your writing actually makes your work more sophisticated.

SECTION 9

Practice Problems

Question 1: CONCEPTUAL

Explain why a research study published in a peer-reviewed scientific journal is generally considered more reliable than a blog post on the same topic, even if the blog post was written more recently.
Show answer
A peer-reviewed journal article goes through a rigorous quality control process where other experts in the field review the research methods, data analysis, and conclusions before publication. The authors must have credentials and follow scientific methodology. Blog posts, while sometimes written by experts, don't undergo this review process and may be based on personal opinions rather than systematic research. The recent publication date of a blog doesn't make up for the lack of expert verification and methodological rigor.

Question 2: BASIC CALCULATION

You're researching climate change and find an article from 2015. Today is 2024. For a topic like climate change where new data is constantly being collected, is this source too old to use? Explain your reasoning and suggest how you might determine if newer information is available.
Show answer
A 2015 source on climate change is 9 years old, which is getting outdated for a rapidly evolving scientific topic. While it might contain valuable background information or historical data, you should look for more recent sources for current statistics and findings. To find newer information, search the same databases using recent date filters (2020-2024), check if the original authors have published follow-up studies, and look for review articles that summarize the latest research in the field. Use the older source for context but prioritize recent data for evidence.

Question 3: INTERMEDIATE

You find a website about the health effects of a particular diet. The site doesn't list an author, but it has a professional design and includes several studies in its references. How would you evaluate this source using the WHO-WHAT-WHEN-WHY framework?
Show answer
WHO: Major red flag — no identifiable author means you can't verify expertise or credentials. WHAT: The professional design and references are positive, but the lack of author information is concerning. Check if it's from a reputable organization. WHEN: Check when the page was last updated and whether the referenced studies are recent. WHY: This is crucial — look for signs of commercial intent (selling products), check if the URL suggests a business (.com vs .edu or .gov), and see if the information seems balanced or biased toward one conclusion. Without knowing the author, this source should not be used as primary evidence, but the studies it references could be tracked down and evaluated independently.

Question 4: APPLIED

Your teacher assigned a research paper about the impact of social media on mental health. Create a search strategy that includes: (1) three different types of sources you would look for, (2) specific keywords and search operators you would use, and (3) at least two different databases or search engines you would check.
Show answer
SOURCES: (1) Peer-reviewed psychology journals for scientific studies, (2) Government health websites (CDC, NIH) for official statistics and guidelines, (3) Reputable news sources for recent developments and real-world examples. KEYWORDS: "social media" AND "mental health", "Instagram OR Facebook OR TikTok" AND anxiety, "adolescent" AND "depression" AND "screen time", "digital wellness". DATABASES: PubMed or PsycINFO for academic articles, Google Scholar for broader academic sources, and news databases like ProQuest for current coverage. I would also check organization websites like the American Psychological Association for position statements and research summaries.

Question 5: CRITICAL THINKING

You discover that two seemingly credible sources — a 2023 university study and a 2023 government report — present conflicting conclusions about the same issue. Both appear to meet quality criteria for WHO-WHAT-WHEN-WHY. How would you handle this disagreement in your research, and what additional steps would you take to determine which source (if either) to trust more?
Show answer
This situation actually strengthens rather than weakens your research because it shows you're encountering the real complexity of the issue. First, I would examine the methodology: How large were the study samples? What research methods were used? Were there any limitations acknowledged? Second, I'd look for additional sources to see if either conclusion has broader support in the literature. Third, I'd check if the sources are measuring exactly the same thing — sometimes apparent conflicts arise from slightly different research questions. In my paper, I would present both findings and note the disagreement, explaining what might account for the different conclusions. This demonstrates sophisticated critical thinking rather than trying to pretend all sources agree.

SUMMARY

Research Mastery Summary

Summary

Effective research is built on three core skills: strategic searching using targeted keywords and appropriate databases, critical evaluation using the WHO-WHAT-WHEN-WHY framework, and proper citation to give credit and provide a trail for readers to follow. Remember that primary sources are generally more reliable than secondary or tertiary sources, and peer-reviewed sources have undergone expert quality control. As your research skills develop, you can use advanced techniques like following citation trails and handling conflicting sources thoughtfully. Most importantly, when in doubt about whether to cite something, always err on the side of giving credit — this protects you from plagiarism while showing respect for other researchers' work.

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