To what extent does acute hydration (consuming 500 ml water 30 minutes before) vs. mild fluid restriction (no fluid for 2 hours before) affect repeated-sprint performance (6 × 20 m suicides) in high-school basketball players?SL
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6
Official IB Result
IB Grade: 6
Criteria A: Research design
4/6
0
3
6
Criteria StrandsPro
A.1Research question context
Excellent
A.2Methodological considerations
Good
A.3Reproducibility of methodology
Good
Criteria Feedback
- The student frames a focused, testable question and places it in a clear basketball-specific context.
- The student identifies several relevant controls and procedural details, including repeated measures, counterbalancing, rest intervals, and standardized conditions.
- The methodology is detailed enough that most of the investigation could be repeated with only a few uncertainties.
- The investigation does not convincingly show that participants actually started in meaningfully different hydration states.
- There is an internal inconsistency between the report’s reference to consecutive-day testing and the claim of at least 48 hours between trials.
- Some important methodological details are still missing, such as the exact counterbalancing procedure and how compliance with pre-trial instructions was checked.
Criteria B: Data analysis
3/6
0
3
6
Criteria StrandsPro
B.1Communication of data
Good
B.2Consideration of uncertainties
Moderate
B.3Processing quality
Moderate
Criteria Feedback
- The raw data are organized clearly, with paired observations, units, and summary processing shown in a way that is easy to follow.
- The choice to calculate paired differences is appropriate for the repeated-measures design and helps make the effect visible.
- The student includes relevant statistical processing such as a paired t-test, effect size work, and an outlier check.
- Several summary values are inconsistent across the raw data, table, graph, and written discussion, which weakens precision.
- The treatment is sometimes described as hydration status even though hydration itself was not measured directly.
- Uncertainty is acknowledged, but the discussion of measurement error is not fully reconciled, especially where stopwatch precision and reaction-time error are concerned.
Criteria C: Conclusion
5/6
0
3
6
Criteria StrandsPro
C.1Relevance and support
Excellent
C.2Scientific context comparison
Excellent
C.3Practical implications
Excellent
Criteria Feedback
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- Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
- Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Criteria D: Evaluation
5/6
0
3
6
Criteria StrandsPro
D.1Weaknesses and limitations
Excellent
D.2Improvements
Excellent
Criteria Feedback
- Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
- Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
- Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
- Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.