How to Master Data-Based Questions in IB SEHS Paper 2
In the updated IB Sports, Exercise and Health Science (SEHS) syllabus, Paper 2 places a strong emphasis on interpreting real performance data. Many students find this section challenging—not because the content is unfamiliar, but because success depends on how you analyse and explain information.
This guide rewrites the strategy from the ground up, giving you a clear, exam-ready approach aligned with the expectations of the International Baccalaureate.
Understanding the SEHS Paper 2 Format
Paper 2 combines:
- Short-answer questions
- Extended responses
- Scenario-based prompts built around real data
You may be given tables, line graphs, bar charts, or statistics related to heart rate, VO₂, reaction time, fatigue, biomechanics, or psychological variables. Questions often integrate physiology, biomechanics, and psychology within a single context.
The goal is not memorisation—it is applied interpretation.
Why Data Questions Feel Difficult
Students commonly lose marks because they:
- Describe data without analysing it
- Fail to link numerical trends to SEHS theory
- Overlook axes, units, or variability indicators
- Ignore evaluation when it is required
High-scoring answers always move from data → theory → evaluation.
A Reliable 5-Step Strategy for Data Questions
Step 1: Read the Question With Purpose
Identify the command terms immediately.
- Describe = state trends using data
- Explain = link trends to theory
- Evaluate = discuss strengths, weaknesses, and improvements
Underline exactly what is being asked.
Step 2: Decode the Data Presentation
Before writing anything, clarify:
- Independent and dependent variables
- Units and scales
- Type of data (mean, standard deviation, percentage change)
- Graph format (line, bar, table)
This prevents misinterpretation later.
Step 3: Describe Trends Precisely
Use quantified language, not vague statements.
For example:
“As VO₂ increases from 2.0 to 3.5 L·min⁻¹, heart rate rises from approximately 120 to 170 bpm, after which the increase becomes less pronounced.”
Precise numbers signal control and accuracy.
Step 4: Anchor Observations to SEHS Theory
This is where marks are gained.
Depending on the context, link trends to:
- Energy systems, stroke volume, oxygen delivery, or fatigue
- Motor unit recruitment, lever efficiency, or force production
- Motivation, arousal, reaction time, or cognitive processing
Explain why the data behaves as it does.
Step 5: Evaluate and Reflect
When evaluation is required, address:
- Anomalies or inconsistencies
- Sample size and participant variability
- Measurement reliability or validity
- Suggested improvements (e.g. repeated trials, control variables, refined protocols)
Evaluation demonstrates higher-order thinking.
Example: How to Break Down a Typical Prompt
Scenario:
A table shows mean reaction times (± SD) of sprinters before and after a mental imagery programme.
Effective approach:
- Describe the reduction in mean reaction time and any change in variability
- Explain improvements using cognitive processing speed and neuromuscular readiness
- Evaluate limitations such as small sample size, learning effects, or lack of control group
This structure consistently matches examiner expectations.
Statistical Understanding You Should Be Comfortable With
You should be able to:
- Interpret mean values and standard deviation
- Compare groups or conditions using differences in averages
- Explain what error bars indicate
- Distinguish consistency from variability
You are not expected to perform complex statistics—but you must interpret them accurately.
A Simple Answer Structure You Can Reuse
- Identify what the question asks
- Define key data features (variables, units, format)
- Describe trends using numbers
- Explain trends using SEHS theory
- Evaluate limitations and improvements
Using this structure prevents incomplete answers.
How to Prepare Effectively
To improve quickly:
- Practise data-based SEHS questions under timed conditions
- Focus on linking numbers to theory, not rewriting the data
- Review examiner language and mark allocations
- Test yourself on identifying command terms and required depth
Consistency matters more than volume.
Final Advice
SEHS Paper 2 data questions reward clarity, precision, and application. When you follow a repeatable strategy—reading carefully, describing accurately, explaining with theory, and evaluating thoughtfully—data stops being intimidating and starts becoming a scoring opportunity.
