This deep dive covers Primary and Secondary Data within Fieldwork Process and Enquiry for GCSE Geography. Revise Fieldwork Process and Enquiry in Fieldwork for GCSE Geography with 15 exam-style questions and 20 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 3 of 16 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 16
Practice
15 questions
Recall
20 flashcards
📊 Primary and Secondary Data
All data used in a geography investigation falls into one of two categories: data you collect yourself (primary data) or data collected by someone else that you use as evidence (secondary data). The best investigations use both, choosing each for a specific reason.
| Type | Definition | Examples | Advantages | Disadvantages |
|---|---|---|---|---|
| Primary data | Collected first-hand by the investigator during the fieldwork itself | Questionnaire responses, pedestrian counts, river velocity measurements, environmental quality assessments, pebble size measurements, photographs taken by the student, traffic counts, noise level readings | Specific to your exact question; up-to-date; you control when, where and how it is collected; directly relevant to your study area | Time-consuming and expensive to collect; small sample size is often unavoidable; results may be affected by conditions on the day (weather, time of year); requires equipment and training |
| Secondary data | Collected by someone else and used as evidence within the enquiry | Census data (ONS), Environment Agency river discharge records, Ordnance Survey maps, aerial photographs, Google Street View, newspaper articles, government deprivation statistics, historical climate data, satellite imagery | Often covers much larger areas or longer time periods than one fieldwork trip could cover; already collected so saves time; large datasets with high statistical power; enables historical comparison | May not perfectly fit your specific question or study area; may be outdated; you cannot control how or when it was gathered; may have its own methodological biases you are unaware of |
The examiner rewards students who can explain why they chose each source — not just what they used. A strong answer links the source to the investigation need: "Secondary census data was used to compare the demographic profile of the study area with the national average, because this required data from thousands of households — impossible to collect as primary data in one fieldwork session."