Research suggests that subtle changes in environment design ('nudging') can encourage healthier eating habits without restricting choice. To investigate this, an educational psychologist conducted a covert observation study in a secondary school cafeteria. She monitored students' selection of fruit from two different service stations situated side-by-side during a single lunch hour (12:30 pm to 1:30 pm).
The psychologist recorded the division of choices among junior students (Years 7 to 9) and senior students (Years 10 to 11). The data collected is presented in the table below:
| Junior Students | Senior Students | |
|---|---|---|
| Display with spotlight & signs | 18 | 11 |
| Display without spotlight/signs | 8 | 13 |
Outline one weakness of using nominal data in this study.
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.