fieldwork: data collection and presentation
4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.
4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.

Write down everything you already know about fieldwork: data collection and presentation. Then check against the key terms: Primary Data, Key Concept, Key Principle. Use a mini-whiteboard or paper.
Start with the revision notes summary, then attempt: Explain the difference between primary and secondary data, giving two examples of each from fieldwork.
Your student states one thing they learned and one question they still have about fieldwork: data collection and presentation.
Quick recap: write 3 key points from Lesson 1 on fieldwork: data collection and presentation. Check them against the notes below.
| Term | Meaning | Example |
|---|---|---|
| Definition | Collected by you during fieldwork | Collected by others before your study |
| Examples | Velocity measurements, environmental quality surveys, pedestrian counts, questionnaires | Census data, OS maps, government statistics, newspaper articles, Google Earth imagery |
| Advantages | Specific to your hypothesis; up-to-date; you control the method; reliable if collected carefully | Quick and cheap to access; wider coverage; longer time periods; professional collection methods |
| Disadvantages | Time-consuming to collect; limited sample size; may be affected by weather/day of visit; potential for human error | May be outdated; may not exactly match your needs; accuracy unknown; may contain bias |
| Measurements | River width (tape measure), depth (ranging pole), velocity (flow meter/timer and float), bedload size (callipers) | Building heights, distance from CBD (tape/GPS), noise levels (decibel meter) |
| Surveys/Counts | Sediment roundness (Power's Scale), vegetation cover (%), angle of slope (clinometer) | Environmental quality survey, land use survey, pedestrian counts, traffic counts |
| Questionnaires | Tourist surveys at coastal sites | Shopper questionnaires, resident interviews about quality of life |
| Field sketches/Photos | River cross-sections, coastal landforms, evidence of erosion/deposition | Street scenes, land use zones, regeneration sites |
Q: Explain the difference between primary and secondary data, giving two examples of each from fieldwork.
Answer: Primary data is collected firsthand by the researcher: e.g. river velocity measurements using a flow meter; environmental quality scores recorded on-site. Secondary data was collected by someone else for a different purpose: e.g. census population data; Environment Agency river discharge records. Primary data is specific to the study and up-to-date but time-consuming; secondary data provides wider context and comparison but may be outdated or not perfectly matched to the hypothesis.
Your student teaches the key points back to you without looking. Fill any gaps immediately.
Recall the key terms: Primary Data, Key Concept, Key Principle. Define each in one sentence.
Q1: Explain the difference between primary and secondary data, giving two examples of each from fieldwork.
Answer: Primary data is collected firsthand by the researcher: e.g. river velocity measurements using a flow meter; environmental quality scores recorded on-site. Secondary data was collected by someone else for a different purpose: e.g. census population data; Environment Agency river discharge records. Primary data is specific to the study and up-to-date but time-consuming; secondary data provides wider context and comparison but may be outdated or not perfectly matched to the hypothesis.
Q2: Compare systematic and random sampling. When might each be the better choice?
Answer: Systematic sampling collects data at regular intervals (e.g. every 500m), while random sampling selects points by chance. Systematic is better when you want to cover the whole area evenly and identify trends along a transect (e.g. river changes downstream). Random is better when you want to eliminate all selection bias and the area is fairly uniform. However, random sampling may cluster or miss areas, while systematic may coincide with a regular pattern in the data.
Q3: Explain what stratified sampling is and why it might be used in an urban fieldwork study.
Answer: Stratified sampling divides the study area into subgroups (strata) based on known characteristics, then samples proportionally from each. In urban fieldwork, this is useful because towns have distinct zones (CBD, inner city, suburbs) with very different characteristics. By sampling proportionally from each zone, you ensure all parts of the town are represented. For example, if the CBD is 15% of the area, 15% of surveys should be conducted there.
Q4: Suggest the most appropriate presentation method for each of the following: (a) river width at 10 sites downstream; (b) land use proportions in a town centre; (c) the relationship between distance from the CBD and house prices.
Answer: (a) Line graph - shows continuous change along a transect (distance downstream on x-axis, width on y-axis). (b) Pie chart - shows proportions of different land uses making up the whole. (c) Scatter graph - shows the relationship between two continuous variables (distance from CBD and house price) with a line of best fit to identify the trend.
Q5: Explain why the choice of sampling method affects the reliability of fieldwork conclusions.
Answer: The sampling method determines how representative the data is of the whole area. A biased sample (e.g. only collecting data near roads because they are easy to access) will give results that don't reflect the true pattern. Systematic sampling ensures even coverage but may miss features between points. Random sampling eliminates bias but may leave gaps. Stratified sampling ensures all groups are represented. If the sampling method is poor, conclusions may be unreliable even if data collection is accurate - the sample simply doesn't represent reality.
Review any questions answered incorrectly. Identify whether the error was knowledge, method, or reading the question.
Review what these command words require: state (one point), describe (say what happens), explain (say why), compare (both sides), evaluate (judgement).
Attempt a past-paper style question on fieldwork: data collection and presentation from the exam board past paper finder (see Resources), then mark it against the scheme.