A researcher asks 400 adults about offences they have committed during the previous 12 months. Each adult is asked about the same ten offences but completes one of two self-report methods.
| Self-report method | Number of participants | Number reporting at least one offence |
|---|---|---|
| Anonymous questionnaire | 240 | 72 |
| Face-to-face interview in which the participant's name is recorded | 160 | 24 |
The researcher concludes that the anonymous questionnaire produced a more accurate measure of offending.
Evaluate the researcher's conclusion. Use the data in your answer.
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.