Interviewer Costs Associated with the use of Random Digit Dialing in Large Area Samples
研究在大区域住宅调查中，使用随机数字拨号相比基于电话簿的抽样方法所增加的访员额外成本，并给出了一个估算公式。
This study focuses upon the amount of extra interviewer expense incurred by using a Random Digit Dialing as opposed to a directory-based sample selection method in large area residential surveys. A formula is developed for estimating this extra cost given the expected parameters of a future survey.