Grammarly free plagiarism checker versus Turnitin and Quillbot plagiarism checkers -tested

ecologicaltime
16 May 202306:57

TLDRThe video compares three plagiarism checkers: Grammarly, Turnitin, and Cobot. It demonstrates their effectiveness by uploading various texts, including an original document and copies from the web. While Grammarly consistently reports no plagiarism, Turnitin and Cobot detect significant matches, highlighting the disparity in their detection capabilities. The video emphasizes the unreliability of solely relying on Grammarly for plagiarism checks.

Takeaways

  • 🔍 The video compares three plagiarism checkers: Grammarly, Turnitin, and Coubbot.
  • 🆓 Grammarly's plagiarism checker is a free tool that claims to compare documents against 16 billion web pages.
  • 📈 In the first test, Grammarly reported no plagiarism for a document, while Coubbot found a 46% match, indicating significant similarities.
  • 🔎 Coubbot detailed the sources of the copied text, highlighting the areas of verbatim copying and minor changes.
  • 📊 Turnitin reported a 64% similarity score for the same document, suggesting direct copying and paraphrasing.
  • 🔄 Turnitin also scans student repositories, which can affect the similarity score when comparing to public domain sources.
  • 🛠️ A second text with known plagiarism from the internet was not detected by Grammarly's initial scan but was flagged by Turnitin with a 64% similarity score.
  • 💯 In a test with text copied directly from one source, Turnitin showed a 99% similarity score, indicating academic misconduct.
  • ⏰ Grammarly's results were inconsistent, with no plagiarism found in some tests and plagiarism found in others.
  • 📚 For a long document (conference paper), Grammarly reported no plagiarism, while Turnitin and Coubbot found extremely high similarity scores.
  • 🤔 The video highlights the differences in results between the plagiarism checkers and suggests that relying solely on Grammarly may not catch all instances of plagiarism.

Q & A

  • What is Grammarly's plagiarism checker capability according to the video?

    -Grammarly's plagiarism checker claims to compare documents to 16 billion web pages and identifies if any plagiarism is present.

  • How does the video compare Grammarly's plagiarism checker with Turnitin and Cobot?

    -The video compares these tools by uploading the same documents and analyzing the results each tool provides in terms of plagiarism detection. It shows that Grammarly often reports no plagiarism while Turnitin and Cobot find significant matches.

  • What was the result of uploading a 2,000-word document on Grammarly's plagiarism checker?

    -Grammarly reported no plagiarism found in the 2,000-word document.

  • What was Cobot's result for the same 2,000-word document?

    -Cobot found a 46% match, indicating that a considerable portion of the content was identical or had minor changes.

  • What was Turnitin's result for the 2,000-word document?

    -Turnitin reported a 64% similarity score, suggesting a high amount of direct copying or paraphrasing.

  • How does the video demonstrate the inconsistency in Grammarly's plagiarism checker results?

    -The video shows that after pasting the same text multiple times into Grammarly and scanning for plagiarism, the results fluctuate between reporting plagiarism and not finding any.

  • What was the result of testing a text that was 100% copied from one source?

    -Turnitin showed a 99% similarity score, indicating verbatim copying. However, Grammarly inconsistently reported no plagiarism or found plagiarism only after multiple attempts.

  • How does the video illustrate the difference in sources located by Cobot and Turnitin?

    -While Cobot found free sources, Turnitin located the publication site that hosts the article, which often requires payment or institutional login to access.

  • What was the outcome of uploading an 8-page conference paper in the public domain for plagiarism checking?

    -Grammarly quickly reported no plagiarism, Turnitin reported a 100% copied result, and Cobot found 91.2% as identical, showing significant differences in the tools' capabilities and results.

  • What advice does the video give regarding the use of Grammarly's plagiarism checker?

    -The video advises users to be aware that Grammarly's plagiarism checker may not pick up on all instances of plagiarism and to consider using other tools for a more comprehensive check.

  • What is the overall conclusion of the video regarding the effectiveness of the tested plagiarism checkers?

    -The video concludes that while all tools have their uses, there are significant differences in their effectiveness and sources they check, with Grammarly showing less consistency compared to Turnitin and Cobot.

Outlines

00:00

🔍 Comparing Plagiarism Checkers: Grammarly vs Turnitin vs Cobot

The paragraph discusses a comparative analysis of three plagiarism checking tools: Grammarly, Turnitin, and Cobot. The speaker uploads a document and tests each tool to check for plagiarism. Grammarly claims no plagiarism is found, while Cobot identifies a 46% match, highlighting that a significant portion of the content is copied. Turnitin reports a 64% similarity score, indicating direct copying and paraphrasing. The speaker also notes that Turnitin scans student repositories, which can affect results. The inconsistency in Grammarly's results when scanning the same text multiple times is highlighted, as well as the 99% similarity score when scanning text directly copied from a single source. The paragraph concludes with the speaker's skepticism towards relying solely on Grammarly for plagiarism checks.

05:01

📄 Evaluating Plagiarism Checker Effectiveness: Grammarly's Inconsistencies

In this paragraph, the speaker continues the evaluation of plagiarism checking tools, focusing on Grammarly's effectiveness. A lengthy academic paper, available in the public domain, is used for testing. Despite the paper being a verbatim copy, Grammarly quickly reports no plagiarism. This is contrasted with Turnitin, which accurately identifies the copied nature of the document with a 100% similarity score. Cobot also detects the plagiarism, albeit with a slightly lower 91.2% match, possibly due to its database consisting of free sources. The speaker advises caution when using Grammarly as it may not catch all instances of plagiarism, especially when compared to the more comprehensive results from Turnitin and Cobot. The paragraph ends with a reminder of the importance of understanding the limitations of each tool when assessing plagiarism.

Mindmap

Keywords

💡Plagiarism Checker

A plagiarism checker is a tool or service used to identify and prevent plagiarism in written works. It compares the text against a vast database of content to detect any matches or similarities. In the video, the user tests the effectiveness of Grammarly's plagiarism checker against other services like Turnitin and Coobot, aiming to determine which tool is more accurate in detecting copied content.

💡Grammarly

Grammarly is an online writing assistant that helps users with grammar, spelling, and style improvements. It also offers a plagiarism checker feature that scans documents against a large database of web pages to identify any instances of copied content. In the video, the user is evaluating Grammarly's plagiarism checker by comparing its results with those of Turnitin and Coobot.

💡Turnitin

Turnitin is a widely used plagiarism detection service primarily in academic institutions. It checks submitted documents against a vast database of academic papers, journals, and internet sources to identify instances of plagiarism. The video demonstrates that Turnitin reported a 64 percent similarity score for a document, suggesting significant plagiarism.

💡Coobot

Coobot is a plagiarism detection tool that compares documents to a database of web pages to identify copied content. It provides a percentage match and highlights the areas in the text that are identical or have minor changes. In the video, Coobot is used alongside Grammarly and Turnitin to compare the effectiveness of detecting plagiarism.

💡Web Pages

Web pages refer to the individual pages on the World Wide Web that can contain various types of content, including text, images, and multimedia. In the context of the video, web pages are the sources against which plagiarism checkers compare documents to identify copied content.

💡Identical Verbatim Copying

Identical verbatim copying is when a piece of text is directly lifted from a source without any changes. This type of plagiarism is easily detectable by plagiarism checkers as it involves no alterations to the original content. The video highlights instances where this type of copying is found in the documents being tested.

💡Minor Changes

Minor changes refer to slight alterations made to the original text, such as changing a few words or using synonyms, with the intent to avoid detection by plagiarism checkers. These changes do not alter the essence of the copied content and can still be considered plagiarism.

💡Student Repository

A student repository is a database that stores academic works submitted by students, typically within an educational institution. Turnitin is known for scanning this repository in addition to public sources to detect plagiarism, which can include comparing a document against previously submitted works.

💡Academic Misconduct

Academic misconduct refers to the violation of academic standards, such as plagiarism, cheating, or fabrication of data, which can lead to serious consequences for students or researchers. In the video, the term is used to describe the act of submitting work that contains plagiarized content.

💡Public Domain

The public domain refers to creative works that are not protected by intellectual property laws and can be freely used by the public. These works may include texts, images, music, and other forms of content that are no longer under copyright or were never eligible for it.

💡Database

A database is an organized collection of data or information that is stored and accessed electronically. In the context of plagiarism checkers, databases consist of various sources, such as web pages, academic papers, and publications, that are used to compare and detect similarities in the documents being checked.

Highlights

Grammarly's free plagiarism checker claims to compare documents to 16 billion web pages.

The document of over 2000 words showed no plagiarism on Grammarly but a 46% match on Coobot.

Coobot identifies 21.7% as identical copying and 24.3% as minor changes.

Turnitin reported a 64% similarity score for the same document, indicating direct copying and paraphrasing.

Turnitin scans the student repository, which includes university submissions.

Without the student repository, Turnitin's similarity score dropped to 53%.

Grammarly's inconsistency in detecting plagiarism in a text copied from multiple sources.

A 100% copied text from a single source was not detected as plagiarized by Grammarly in the first attempt.

Turnitin showed a 99% similarity score for the 100% copied text, indicating academic misconduct.

An eight-page conference paper, available publicly, was not flagged by Grammarly as plagiarized.

Turnitin and Coobot showed high plagiarism scores for the public domain paper, with Turnitin at 100% and Coobot at 91.2%.

Coobot and Turnitin locate different sources, with Turnitin finding the publication site.

The video demonstrates the variability and potential limitations of different plagiarism checkers.

Grammarly's quick results may not always be reliable in detecting plagiarism.

The importance of being cautious when relying on a single plagiarism checker.