The planning of the sample presented some difficulty, since it seemed that the nature of the problem imposed the need for safeguard against certain possible biasing factors.
1. Opinion in large towns might not be representative in such a question.
2. It was thought that heavy bombing might seriously have affected habits.
Because of these changes it was thought necessary to limit the number of large towns subjected to bombing in which interviewing took place. The number of interviews made were as follows:
|Reception Areas 305||Bombed Areas 435||Others 728|
Rural Calls were distributed all over the country, outside the following towns:
These proportions were maintained in reception, bombed and other areas with a tendency for the A and B groups to be slightly more emphasised in reception areas.
Regionally the calls were dispersed as follows:-