Concepts have contestable cores and uncontested usual-suspect features.

Evidence

The Usual Suspects Guideline challenges the notion that some concepts are “essentially contested.” There are parts that are not essentially contested, which constitute the usual suspects. So while complete agreement on a definition may be unlikely, there are key parts that are essentially not contested. — Gary Goertz, Social Science Concepts and Measurement, 498

Categorization

• QUESTION: Goertz asserts that some conceptual parts are ‘essentially not contested’; worth testing whether any real-world contested concept still has parts no one seriously disputes.
• XREF: Connects to Gallie’s essentially contested concepts and to the Wittgensteinian family-resemblance debates about whether concepts have shared cores at all.