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A 200-metre freestyle swimming race is used to test strength and power - HSC - SSCE Personal Development and Physical Education - Question 14 - 2019 - Paper 1
Question 14
A 200-metre freestyle swimming race is used to test strength and power. The race is conducted three times. Electronic timing devices are used. Which of the followin... show full transcript
Worked Solution & Example Answer:A 200-metre freestyle swimming race is used to test strength and power - HSC - SSCE Personal Development and Physical Education - Question 14 - 2019 - Paper 1
Step 1
It is valid and reliable.
Answer
To determine if the test is valid and reliable, we must assess both concepts:
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Validity: This refers to whether the test actually measures what it intends to measure. In this case, a swimming race designed to test strength and power is expected to give insights into an athlete's performance in these areas. If the test accurately reflects the strength and power involved in swimming, it can be considered valid.
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Reliability: This refers to the consistency of the test results over time. Conducting the race three times using electronic timing devices helps ensure that the results are consistent and not affected by human error. The use of electronic timing adds to the reliability of the results.
Therefore, given that the test is conducted in a controlled manner with consistent measures, it can be concluded that the test is valid and reliable.
Step 2
It is reliable but not valid.
Answer
While the test may yield consistent results, the nature of the test must be examined. If the swimming race does not adequately reflect strength and power, it cannot be deemed valid. The focus here should be on whether the results represent those strength and power metrics accurately beyond just consistency.
Step 3
It is valid but not reliable.
Answer
If the test effectively measures strength and power, it can be considered valid, but if there are inconsistencies in the timing or measurement during different trials, then it would lack reliability. This would invalidate the use of the results for assessing the athletes properly.
Step 4