Objective: to describe a guideline for the use of the Delphi method to evaluate nursing theories, from the perspective of internal validation.
Method: a methodological study, targeted at the development of a guideline for the use of the Delphi method in the evaluation of nursing theories.
Results: the Delphi method, principles of collective wisdom and levels of proficiency are used in the production of a guideline for organizing, searching, selecting and coordinating the activities of theoretical evaluators in teams.