Still a leading methodology

Telephone sampling is an important and widely used methodology, according to ESOMAR's Global Market Research 2008 report. It is also the method preferred by political and academic researchers for whom the control of quality and sampling bias are of paramount importance.

SSI has been offering telephone sampling since 1977. In fact, we started the commercial sampling business with our first telephone based sampling products. SSI is the preeminent supplier of telephone sample to survey research agencies in the US, Canada, Europe, Latin America, Australia, and Asia.

Download SSI's Telephone Sampling Services Brochure.

SSI's Telephone sampling services

Random Digit Dialing (RDD) - SSI builds a series of databases from which to generate probable working residential phone numbers in proportion to the households present. Learn more.

Random Digit Cluster - accurate and representative random digit sampling when your research is constrained to only one or two nights in the field. Learn more.

SSI-SNAP - our easy-to-use telephone sample ordering technology enables clients to communicate directly with our production system 24/7/365. Select the features you need, such as sample type, business number removal, sample screening, and more. Learn more.

Wireless/mobile - when conducting telephone research, it is important to represent the entire telephone universe. Adding a wireless/mobile phone component will increase the potential for including mobile-only households in your survey. Learn more.

B2B telephone - comprehensive coverage of the business universe in the US, proper nth selection procedures, and selection options to fit even the most rigorously defined research plan. View US SIC Codes.

Urban/Suburban/Rural coding - geo-coding services allow you to compensate for lower contact and cooperation rates in urban areas by ordering additional sample in the urban portion of your geography. Learn more.

Demographic targeting - target in the US by age, automobile ownership, Census data, ethnicity, and income. Other demographic information can sometimes be appended including gender, marital status, and presence of children.

Targeted Affluence - SSI offers two models for targeting affluent households. These multidimensional models use a variety of inputs to estimate household net worth and investible assets. Targeted affluence samples can be combined with other demographic variables. Learn more.

Incidence rate is a key factor in phone sampling

Incidence refers to the percent of contacts that will pass the screening questions in a telephone interview. Generally when any person (above the minimum age in that country) will qualify for the interview, SSI recommends an incidence rate of 90% to account for a language or other possible communication problem.