True or False: High reliability is required to have a valid and accurate procedure.

High reliability is indeed essential for ensuring that a procedure is valid and accurate. Reliability refers to the consistency of a measurement, meaning that repeated measurements under unchanged conditions would yield the same results. In the context of scientific procedures, a valid method must consistently produce the same results when applied in the same situation, which is a hallmark of reliability.

Without high reliability, a procedure may yield variable results that can lead to incorrect conclusions. This inconsistency undermines not only the validity of the particular study involved but can also impact the overall credibility of subsequent research based on those findings. Thus, reliable procedures are foundational to achieving valid and accurate results, making the statement true.

In contrast, other factors, such as the appropriateness of the measurement tools or the experimental design, play important roles too, but without reliability, even the best design or tools can lead to flawed outcomes.