A student is investigating changes in respiratory rate during submaximal exercise following an 8-week aerobic training program.
Compare the validity and reliability in the context of this physiological investigation. (4 marks)
--- 12 WORK AREA LINES (style=lined) ---
Show Answers Only
Sample Answer
Similarities:
- Both validity and reliability are essential concepts for accurate assessment of respiratory rate changes following aerobic training.
- Both require standardised protocols to produce meaningful data.
Differences:
- Validity refers to whether respiratory rate measurements accurately reflect physiological adaptations. This requires ensuring the exercise protocol adequately challenges the respiratory system.
- Reliability refers to the consistency of measurements across multiple testing sessions. This requires consistent counting methods.
- Validity focuses on accuracy of what is measured, while reliability focuses on consistency.
- Validity might be compromised if measurements occur during inappropriate intensities.
- Reliability might be compromised if different methods are used consistently.
Show Worked Solution
Sample Answer
Similarities:
- Both validity and reliability are essential concepts for accurate assessment of respiratory rate changes following aerobic training.
- Both require standardised protocols to produce meaningful data.
Differences:
- Validity refers to whether respiratory rate measurements accurately reflect physiological adaptations. This requires ensuring the exercise protocol adequately challenges the respiratory system.
- Reliability refers to the consistency of measurements across multiple testing sessions. This requires consistent counting methods.
- Validity focuses on accuracy of what is measured, while reliability focuses on consistency.
- Validity might be compromised if measurements occur during inappropriate intensities.
- Reliability might be compromised if different methods are used consistently.