What is the name of the principle that states that if questions are held constant over time, differences over time are not seriously affected by specific question wording?

Question

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The principle of form-resistant correlations suggests that if the questions in a survey or study remain consistent over time, then any observed changes or differences in responses over time are not significantly influenced by the specific wording of the questions. This principle is important in longitudinal studies and surveys to ensure that observed changes reflect actual changes in attitudes, opinions, or behaviors rather than changes in how questions are phrased.

What Is the Name of the Principle That States That