PADI Divemaster Certification Practice Exam

How many individual hyperbaric and open water dives were involved in demonstrating the validity of the Rogers' model?

1. 100

2. 500

3. 1,000

4. 10,000

The correct answer is: 1,000

The correct choice indicates that the Rogers' model was validated through 1,000 individual hyperbaric and open water dives. This amount of dives underscores the extensive research and testing that went into establishing the reliability of the model. The quantity allows for a comprehensive examination of various factors that contribute to dive behavior and physiology under hyperbaric conditions. The significance of having 1,000 dives lies in its ability to account for variability in diver experiences, environmental conditions, and dive profiles, ensuring that the findings are robust and applicable to a wide range of situations. Such thorough testing is essential in scientific models to ensure that they accurately represent reality and can be used confidently by dive professionals. The other options present significantly lower dive counts, which may not provide comprehensive enough data to draw accurate conclusions about a model's validity. Each increase in the number of dives adds to the statistical power of the findings, which is crucial for scientific rigor.