True El Salvador RDD Sample for National Representative Data
Our El Salvador RDD sample is the backbone of global telephone surveys, opinion polling and social research. The industry Gold Standard RDD Sample is used by over 350 Think Tanks, government agencies, fieldwork agencies and corporate clients.
RDD Portfolio
Going beyond random sampling for El Salvador
Our random sampling is backed by a transparent methodology and enhanced filtering for fieldwork efficiency.
Mobile RDD Sample
Expand your reach with an updated mobile RDD sample including provider information covering every single phone number in El Salvador
Dual-Frame RDD sample for El Salvador
The mixed Dual-Frame approach mode combines both landline and mobile and is designed to reduce bias data, increase the response rate and reach a larger audience. In some countries such as El Salvador, older respondents or females can be reached easier this way.
Landline RDD Sample
Sample Solutions provides a fully geo-coded landline RDD sample with removed business listings to the market research industry. Keep in mind that the landline share has been declining in El Salvador.
RDD records delivered
Countries Covered
RDD Projects annually
Coverage
Our El Salvador RDD sample connects with 7 million individuals for your research.
In El Salvador, mobile phones are more frequently used than landline numbers. According to data from the International Telecommunication Union, mobile cellular subscriptions in El Salvador have been steadily increasing over the years, while fixed telephone lines have been on the decline. This trend is reflective of a global shift towards mobile technology and away from traditional landline services. Mobile phones offer convenience, portability, and often more affordable communication options compared to landlines. In a country like El Salvador, where mobile penetration is high and access to fixed-line infrastructure may be limited in certain areas, mobile phones have become the primary means of communication for many people. Additionally, the widespread availability of prepaid mobile plans has made it easier for individuals to afford and use mobile phones for their communication needs. While some businesses and households may still maintain landline numbers for specific purposes, such as for internet connections or as a backup communication method, the overall trend in El Salvador shows a preference for mobile phones. This shift towards mobile technology is likely to continue as advancements in mobile networks and devices make them even more essential in daily life.
Sample Solutions for methodological sampling
The RDD sample El Salvador provided comes with full country information such as frame coverage, potential bias or mobile & landline access data.
Testimonials
Sample some of our Testimonials
Global Resources, SSRS
D3 Systems, Inc.
Verian
DT&P international
Past Projects
Sampling coverage when other modes fail.
Some of our previous projects included surveys in Crimea, Greenland, data collection in Syria as well as Afghanistan. We can sample when other data collection modes are close to impossible. With all these countries covered, you understand why sampling for El Salvador is not an issue for us.
ESRA Presentation
Big Data Matching
Using Big Data applications to Decrease The Coverage Error and Sample Bias in European Establishment Surveys
AAPOR Poster
IVR Phone Surveys
Screened mobile sample for IVR surveys in developing countries 2020 Paper – The case of Sri Lanka and Ecuador
WAPOR Presentation
From CAPI to CATI
By looking at Greece and comparing a Face-2-Face and CATI study using our RDD Dual-Frame RDD Sample
Recognized by global standards
A yearly re-certification for ISO 27001, ISO 20252 in combination with a dedicated policy document, sampling methodologies and quality structure ensures enterprise level sampling quality.
- ISO 27001
- ISO 20252
- GDPR Ready
RDD Sample Process
Our El Salvador RDD Sample Generation
Over the years, we built a comprehensive RDD frame for El Salvador to fit various needs for conducting international projects and we have worked hard to earn a trusted network of customers all based on a solid methodology.
Frequently Asked Questions
Got any questions about sampling for El Salvador using RDD? We’re here to help
As data controller you can provide them with a link to our data subject request and we can pick it up from there.
Our database is global in terms of coverage. However through Western Europe and North America we have the best in-country coverage and depth of data.
We generally have the owner or Managing Director as contact. If needed we can add other direct contact people that are relevant for your research.
Turnaround time is usually 2-3 working days.
No problem, take a glance at our data enrichment options which can help you to enrich missing data points.
