2. Bullying/experience of schooling

3. Achievement and school factors

5. Opportunity samples are in schools – classes/departments

6. But these lists may not reflect researchers interests, ie) schools may not have lists by ethnicity

8. Response rate may be higher and valid than interviews

9. Students need anonymity assured – distrust – no personal ocntact

10. Interpretivists – need rapport – honest opinions – explore meanings (inf. interviews)

12. But data often limited..can correlate but not always explain.

13. Literacy problems/understanding questions

15. Schools may object to topic or disruption to lessons

16. But response rate can be high (where school’s consent)

17. Response right may be high as teachers/students etc are used to filling in questionnaires but many teachers may be stressed or not have time to complete