| Date | May 2019 | Marks available | 2 | Reference code | 19M.3.SL.tz0.13 |
| Level | Standard Level | Paper | Paper 3 | Time zone | time zone 0 |
| Command term | Calculate | Question number | 13 | Adapted from | N/A |
Question
A study was conducted during a practice soccer game in which participants completed a dribbling test every 15 minutes. The participants were randomly allocated to two groups and consumed a gel product after 85 minutes:
- Group 1: placebo gel
- Group 2: carbohydrate gel.
Participants then continued playing for an extra 35 minutes, and testing continued.
The dribbling test required participants to dribble a ball around a series of obstacles; their precision (distance from obstacle), speed, and success (avoiding the obstacles) were measured. The mean results are shown in the graphs.
Graph showing the mean precision (distance from obstacle) of participants in the dribbling test.
Graph showing the mean speed of participants in the dribbling test.
Graph showing the mean success (avoiding the obstacles) of participants in the dribbling test.
State what happened to the speed of participants between 90 and 105 minutes for the group who consumed the carbohydrate gel.
Calculate the difference in precision between the carbohydrate gel and placebo gel conditions at 120 minutes.
Evaluate the consumption of carbohydrate gel during the soccer match.
Markscheme
stayed the same ✔
[1]
40 – 25 ✔
15 cm ✔
Accept answers in the converse.
[2]
Strengths:
dribbling precision is improved through carbohydrate consumption ✔
% success got better between 85 and 105 min / 0–15 min after consumption/initially improved after consumption ✔
Limitations:
% success got worse/decreased between 105 and 120 min / 20–35 min after consumption ✔
dribbling speed was unchanged due to consumption of CHO gel ✔
Award [2 max] for either strength or limitation.
[3 max]
