IA1 — Data Test
Weighting: 10%
What is a data test?
The data test assesses your ability to analyse and interpret scientific data. You will be provided with unseen data sets (tables, graphs, scenarios) and asked to apply your understanding of the relevant subject matter to respond to questions.
Conditions
- Time: 60 minutes plus perusal time
- Mode: Written, supervised
- Calculator: QCAA-approved graphics or scientific calculator permitted
- Formula book: QCAA Physics formula and data book provided
Objectives assessed
- Apply understanding of relevant subject matter
- Analyse data to identify trends, patterns, relationships, limitations or uncertainty
- Interpret evidence to draw conclusions based on analysis
What to expect
Questions may require you to:
- Interpret graphs (identify gradients, intercepts, areas under curves)
- Analyse data tables to identify trends and patterns
- Calculate values using provided data and relevant formulas
- Evaluate the reliability and validity of data
- Determine uncertainties (absolute, percentage, uncertainty of the gradient using min/max lines of best fit)
- Draw evidence-based conclusions
Preparation tips
How to prepare
- Practise interpreting unfamiliar data sets — you won't have seen the data before
- Revise how to calculate gradients, intercepts, and areas from graphs
- Practise propagating uncertainties (absolute and percentage)
- Review how to linearise non-linear data (e.g. plotting \(t^2\) vs \(s\))
- Work through past data test papers and examiner reports
- Use the cognitive verbs correctly — "analyse" requires more depth than "describe"