| Abstract: | The growing proportion of households that have telephones and the increasing cost of face-to-face interviewing have led to greater interest in the use of telephone surveys in Australia over recent years. However about 20 per cent of private households do not have a telephone service, which could give rise to significant biases in population estimates derived from telephone surveys if no adjustment is made to take account of the differences between those with and without telephone access. This paper examines these differences and suggests ways in which their possible effects might be overcome. |
