Telephone surveys are subject to coverage bias from noncoverage of nontelephone households. Though the percentage of households not having telephone service is small nationally, it can vary substantially by geographic area and by socioeconomic factors. For example, lack of telephone service is more common among low-income households than in other income groups, so low-income households may not ...

Telephone surveys are often used by Customer Services to evaluate their clients’ satisfaction and to improve their services. Large amounts of data are collected to observe the evolution of customers’ opinions. Within this context, the automatization of the process of these databases becomes a crucial issue. This paper addresses the automatic analysis of audio messages where customers are asked ...

The quality of survey estimates depends on coverage of the target population, response rates, and measurement errors. Landline telephone surveys exclude households that do not have landline telephones including wireless-only households. Among children under 18 years of age, the prevalence of living in wireless-only households increased from 3.7% in 2003 (January-June) to 19% in 2008 (July-Decem...

This study compared interview and telephone surveys to select the better method for regularly estimating nationwide vaccination coverage rates in Korea. Interview surveys using multi-stage cluster sampling and telephone surveys using stratified random sampling were conducted. Nationwide coverage rates were estimated in subjects with vaccination cards in the interview survey. The interview surve...

Increasingly, web surveys are being used to supplement telephone survey data and some predict internet methods will one day replace telephone interviews as the primary method for surveying general populations. Despite these trends, few studies have systematically compared response differences between the two methods. This article describes a study in which both telephone and web surveys were us...

It is well known that telephone surveys are subject to coverage bias because of noncoverage of nontelephone households. Although only around 5% of the households in the U.S. do not have a telephone, rates of telephone coverage show substantial variation by geography, and demographic and socioeconomic factors. In particular, lack of telephone service is more common among households that contain ...

BACKGROUND This study tested the hypothesis that data from random digit-dial telephone surveys underestimate the prevalence of cigarette smoking among African-American adults. METHOD A novel, community-sampling method was used to obtain a statewide, random sample of N = 2118 California (CA) African-American/Black adults, surveyed door-to-door. This Black community sample was compared to the B...

1. THE CURRENT STATUS OF TELEPHONE SURVEY DESIGNS The two stage random digit dialing design for sampling telephone households, first proposed by Mitofsky (1970) and more fully developed by Waksberg (1978), has been widely employed in telephone surveys. The Mitofsky-Waksberg technique capitalizes on the fact that working residential numbers (hereafter referred to as WRNs) tend to be highly clust...