How do you present, analyse, conclude and evaluate a fieldwork investigation?
Presenting fieldwork data, analysing results, drawing a conclusion against the hypothesis, and evaluating the investigation (AO3).
A focused CCEA GCSE Geography guide to the final stages of a fieldwork investigation for Unit 3. Covers choosing the right presentation method, analysing results, drawing a conclusion against the hypothesis, and evaluating the reliability of the study and how to improve it.
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What this dot point is asking
CCEA wants you to handle the final stages of a fieldwork investigation: presenting the data in suitable graphs and maps, analysing what it shows, drawing a conclusion against the hypothesis, and evaluating how reliable the study was. These stages carry the higher tariffs in Unit 3, because they test the AO3 skills of communicating and judging, so technique matters as much as the data itself.
Presenting the data
Analysing the results
Analysis is more than describing the graph.
- Describe the pattern: what does the data show overall (a rise, a fall, a trend)?
- Use figures from the data to support what you say.
- Explain the pattern using the geography you have learned (for example attrition making pebbles smaller downstream).
- Identify anomalies (results that do not fit) and suggest why they occurred.
Drawing a conclusion
Evaluating the investigation
The evaluation is where the highest marks lie, because it shows judgement.
- Reliability of the data. Was the sample large enough and taken fairly? Were there errors? A small or biased sample weakens the conclusion.
- Methods. Were measurements accurate? Were there problems such as weather, equipment or human error on the day?
- Improvements. Suggest realistic changes: a larger sample, more sites, repeating measurements, or collecting at different times, to make the results more reliable.
- Confidence. Judge how confident you can be in the conclusion given these limitations.
Worked example: a strong evaluation
Common mistakes
Examples in context
Example 1. Why the evaluation earns the top marks. Two students can collect identical data, but the one who honestly judges that their sample of ten pebbles was too small, spots that one anomalous reading came from a tributary, and suggests measuring at more sites, shows the geographical thinking examiners reward. The evaluation is where you prove you understand that fieldwork is never perfect and that a conclusion is only as strong as the data behind it.
Example 2. Matching the graph to the question. If the hypothesis is about change downstream, a scatter graph of pebble size against distance with a line of best fit instantly shows whether the data supports the prediction, far better than a table of numbers. Choosing the presentation that reveals the pattern, and saying why, turns raw data into a clear, convincing answer, which is the heart of the AO3 skills Unit 3 tests.
Try this
Q1. Which graph best shows how a value changes with distance downstream? [1 mark]
- Cue. A line graph or scatter graph (of the value against distance).
Q2. What must a conclusion refer back to? [1 mark]
- Cue. The hypothesis (and aim), stating whether it was supported or rejected, with evidence.
Q3. Give two ways to improve the reliability of a fieldwork investigation. [2 marks]
- Cue. Any two: a larger sample, more sites, repeating measurements, or collecting at different times.
Exam-style practice questions
Practice questions written in the style of CCEA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
CCEA Unit 3 (style)4 marksSuggest a suitable way to present fieldwork data and explain why it is appropriate.Show worked answer →
Four marks: two for a suitable method, two for why it fits the data.
To show how pebble size changes downstream, a line graph or scatter graph of pebble size against distance is suitable, because it clearly shows the trend and any pattern over distance.
To show data at points on a map, located proportional bars or pie charts can be placed at each site, because they link the data to its location.
A good answer matches the presentation method to the type of data and explains why it shows the pattern clearly.
Markers reward a sensible method linked to the data type, plus a clear reason it is appropriate.
CCEA Unit 3 (style)6 marksExplain how you would evaluate a fieldwork investigation.Show worked answer →
Six marks for explained evaluation points.
Evaluation judges how reliable and valid the investigation was. Comment on the data: was the sample large enough, taken fairly, and free of errors? A small or biased sample weakens the conclusion.
Comment on the methods: were measurements accurate, and were there problems such as weather, equipment or human error on the day?
Suggest improvements: a larger sample, more sites, repeating measurements, or collecting at different times, would make the results more reliable.
Finally judge how confident you can be in the conclusion given these limitations.
Markers reward honest comments on the reliability of the data and methods, realistic improvements, and a judgement on confidence in the conclusion.
Related dot points
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A focused CCEA GCSE Geography guide to the geographical enquiry process for Unit 3 fieldwork. Covers the stages of an enquiry, how to choose a suitable aim and hypothesis, how to link fieldwork to a Unit 1 or Unit 2 topic, and what the Unit 3 exam expects.
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Sources & how we know this
- CCEA GCSE Geography specification — CCEA (2017)
- CCEA GCSE Geography (2017) Unit 3 past papers and mark schemes — CCEA (2024)