A research team is investigating the relationship between aerobic training and blood pressure responses.
Explain why it is important to use valid and reliable data collection methods when investigating physiological responses to aerobic training. (5 marks)
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Sample Answer
- Valid data collection methods are important because they ensure that physiological variables being measured genuinely reflect aerobic training adaptations. This prevents extraneous factors like measurement timing or technique from affecting results. For example, consistent blood pressure measurement protocols eliminate variations from cuff placement or environmental conditions. Therefore, researchers can confidently attribute observed changes to training intervention rather than measurement errors.
- Reliable methods are essential because they enable accurate quantification of training effects across multiple testing sessions. This consistency eliminates variations from measurement technique, equipment performance, or observer differences. As a result, researchers can identify true physiological adaptations that occur due to aerobic training rather than random variations.
- Using valid and reliable methods is crucial because it ensures scientific credibility and enables practical applications. This accuracy leads to appropriate exercise prescriptions for health outcomes like blood pressure reduction. In contrast, invalid or unreliable methods could result in incorrect conclusions about training.
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Sample Answer
- Valid data collection methods are important because they ensure that physiological variables being measured genuinely reflect aerobic training adaptations. This prevents extraneous factors like measurement timing or technique from affecting results. For example, consistent blood pressure measurement protocols eliminate variations from cuff placement or environmental conditions. Therefore, researchers can confidently attribute observed changes to training intervention rather than measurement errors.
- Reliable methods are essential because they enable accurate quantification of training effects across multiple testing sessions. This consistency eliminates variations from measurement technique, equipment performance, or observer differences. As a result, researchers can identify true physiological adaptations that occur due to aerobic training rather than random variations.
- Using valid and reliable methods is crucial because it ensures scientific credibility and enables practical applications. This accuracy leads to appropriate exercise prescriptions for health outcomes like blood pressure reduction. In contrast, invalid or unreliable methods could result in incorrect conclusions about training.