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Research designs in the d-family can be categorized along two dimensions...

Authors of an NCA publication can propose an accepted or published work (article, book chapter, book, thesis, conference paper, etc.) to be referenced on...

Most frequently asked questions about NCA are answered in more depth in the online NCA book or on the online NCA Forum. If your question is not answered...

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If you are interested in updates about NCA developments and NCA applications, you can subscribe to the NCA newsletter (four times per year).

The NCA philosophy is explained in four principles: Reduction of complexity, academic rigor, practical relevance, and history and future.

There are three ways to get started with NCA and to check whether your data may contain a necessary condition.

The starting point for identifying a necessary (but not sufficient) condition is a scatter plot of data (see figures)...

NCA is an approach and tool for researchers who wish to build or test theory with empirical data and write impactful publications, and for data analysts...

Necessary Condition Analysis (NCA) is an approach and tool for identifying necessary conditions in data sets.