A research team compared burglary in the same district during two consecutive 12-month periods. Both sources covered burglaries from residents' homes. At the beginning of Period 2, the police introduced tighter recording rules.
| Measure | Period 1 | Period 2 |
|---|---|---|
| Burglaries recorded by the police | 480 | 720 |
| Estimated burglaries from an anonymous victim survey | 1,200 | 1,180 |
Calculate the estimated dark figure of burglary for Period 2.
Using the source, explain what the researchers should conclude about whether the amount of burglary changed between Period 1 and Period 2.
41 exam-style questions on OCR GCSE Psychology 1.1 Key Concepts, covering 1.1.1 Types of crime, 1.1.2 Crime as a social construct, and 1.1.3 How crime is measured. Each one has a worked solution and a mark scheme showing where the marks go.