A sports scientist investigated the effectiveness of two different warm-up protocols on explosive leg power in professional rugby players.
In Condition X, 12 players performed a static stretching routine before completing a vertical jump test. In Condition Y, 12 different players performed a dynamic warm-up routine before completing the identical vertical jump test.
The results are displayed in Table 1 below.
Table 1 Number of athletes who achieved a vertical jump height exceeding 60 cm
| Condition X (Static Stretching) | Condition Y (Dynamic Warm-up) |
|---|---|
| 4 | 10 |
After collecting the results, the sports scientist asked all 24 players to self-report their subjective levels of muscle readiness on a scale of 1 to 10.
What is reliability? Explain how the sports scientist could decide whether the findings in Table 1 are reliable.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
