De nitionUndecidedness about enacting a behaviour population statistic Behaviour Change Intervention Ontology (BCIO) De nition: A population statistic about undecidedness about enacting a behaviour.This de nition was imported from the Behaviour Change Intervention Ontology (see https://bciosearch.org/).Comments and suggestions for improvements are welcome using the Qeios review system.De nitions imported from the Behaviour Change Intervention Ontology (BCIO) are what are known as ' ontological de nitions' .See this article in Qeios for an explanation https://www.qeios.com/read/YGIF9B.Ontological de nitions can sometimes be hard to read.In those cases we also include an informal de nition.De nitions also often require elaboration to make it clear how they should be used and what they include.In those cases we include a comment.Also, de nitions sometimes require an explanation as to how they came about to help users understand how they relate to alternative de nitions.In those cases we include a curator note.