手法を比較

	アイデア盗用および概念窃盗	類似性と盗用：その区別を理解する
分野	研究倫理	研究倫理
系統	Process / pipeline	Process / pipeline
提唱年	1980s	2000s
提唱者	Academic integrity framework (modern definition)	Academic integrity frameworks and plagiarism detection software companies
種類	Concept	Concept
原典	Hirsch, L. R. (2013). Recognizing plagiarism: A guide for academic professionals. Teaching Professor Blog.	Hirsch, L. R. (2013). Recognizing plagiarism: A guide for academic professionals. Teaching Professor Blog.
別名	conceptual plagiarism, idea theft, intellectual theft	similarity index, turnitin score, similarity percentage
関連	3	4
概要	Idea plagiarism, or conceptual plagiarism, occurs when an author takes another's ideas, arguments, theories, or conceptual frameworks and presents them as original work without crediting the source. Unlike verbatim or paraphrasing plagiarism (which involve copying language), idea plagiarism involves taking the intellectual content itself—the argument, theory, or framework—regardless of how it is worded. It is the hardest form of plagiarism to detect because it does not require word-for-word copying.	A critical distinction exists between similarity percentages generated by plagiarism detection software (Turnitin, iThenticate) and an actual plagiarism verdict. A similarity index is a red flag requiring review; it is not a plagiarism determination. High similarity can result from legitimate quotations, references, shared technical language, or common knowledge. Conversely, low similarity does not guarantee absence of plagiarism. Human expert judgment is essential—similarity detection software provides data, not judgment.