Primary data-collection techniques, sampling, validity and limitations

What this note covers

1. Primary data and the main collection techniques
2. Sampling strategies: choosing where and how often to collect data
3. Validity, reliability and accuracy: three different qualities
4. Limitations specific to common techniques
5. Worked example: choosing and justifying a technique
6. Structuring an evaluation answer in the exam
7. How this is examined and what separates a top response

7 sections · 12 key terms & formulas · 6 common mistakes