Under this method, the task of filling the schedule is done by trained enumerators. Enumerators go door-to-door and make enquiries from the informants and fill the schedules. For the success of this method it is important that the enumerator should be faithful, experienced, having a good nature and hard working and must also know the language, customs, etc. of the area under investigation.
Uses of Method : This method is suitable for an extremely wide area. Mostly, this method is used by the government to collect data.
This method is used in the population census.
Merits :
1. Information can be collected for a wide area.
2. In this method the trained enumerators receive the correct information by making personal contact with the informants.
3. The data collected by this method is original and unbiased.
4. The level of accuracy in collected data is high.
Demerits :
1. More time is consumed in carrying out the investigation.
2. It is an expensive method.
3. It is diffcult to appoint and train the enumerators.
4. This method is less flexible.
