Analysing data, errors, reliability, accuracy, validity and justified conclusions

What this note covers

1. Represent results so the evidence can be interpreted
2. Describe trends, patterns and relationships precisely
3. Calculate means, rates and percentage change
4. Random and systematic errors affect results differently
5. Reliability, accuracy, precision and validity ask different questions
6. Conclusions answer the question within the evidence
7. Checking calculations and graph choices against the biological question
8. Matching an investigation improvement to the error it addresses

8 sections · 11 key terms & formulas · 6 common mistakes