What is it about?

This research introduces the combined use of partial least squares–structural equation modeling (PLS-SEM) and necessary condition analysis (NCA) that enables researchers to explore and validate hypotheses following a sufficiency logic, as well as hypotheses drawing on a necessity logic. The authors’ objective is to encourage the practice of combining PLS-SEM and NCA as complementary views of causality and data analysis.

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Why is it important?

The use of PLS-SEM and NCA enables researchers to identify the must-have factors required for an outcome in accordance with the necessity logic. At the same time, this approach shows the should-have factors following the additive sufficiency logic. The combination of both logics enables researchers to support their theoretical considerations and offers new avenues to test theoretical alternatives for established models. The authors provide insights into the logic, assessment, challenges and benefits of NCA for researchers familiar with PLS-SEM. This novel approach enables researchers to substantiate and improve their theories and helps practitioners disclose the must-have and should-have factors relevant to their decision-making.

Perspectives

Necessity thinking is relevant in many fields of research reflected in formulations such as "A is a necessary condition for B", "B requires A" and alike. Necessary condition analysis offers a tool to identify these necessary conditions, and therewith can complement a traditional PLS-SEM model by identifying the must have factors relevant for an outcome to materialize.

Nicole Richter
Syddansk Universitet

Read the Original

This page is a summary of: When predictors of outcomes are necessary: guidelines for the combined use of PLS-SEM and NCA, Industrial Management & Data Systems, August 2020, Emerald,
DOI: 10.1108/imds-11-2019-0638.
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