Catalogue de données central

Début	Fin	Cycle
2012	2012	Every 3 years

Face-to-face [f2f]
The following actions were taken to reduce non-sampling error:
- Trained data collection staff
- Trained data processing staff

The National Assessment of Grade Four Students comprises four background questionnaires:
- student questionnaire
- teacher questionnaire
- parents questionnaire
- school principal questionnaire
Each questionnaire has a standard completion duration of 30 minutes.