IranPoll has extensive experience in conducting nationally representative probability sample survey research in Iran and is unparalleled in its expertise to adjust various questions, even those that evoke extreme sensitivity to local conditions.

“methodology stands up to scrutiny.”
Referring to a poll conducted by IranPoll for the University of Maryland.
— The Washington Post, Feb 4, 2016

Link to the Washington Post article.

our Telephone (CATI) & omnibus methodology

IranPoll is unique in that unlike most other fielding agents who only use interviewers fluent in Farsi (Persian), which is the native language of only about 55% of Iran’s current population, it uses interviewers fluent in the vernaculars of various regions in Iran. This allows IranPoll to more effectively communicate survey questions and accurately record obtained responses.

Our sampling methodology for face-to-face, CATI, and omnibus uses a nationally representative probability sampling method which is both simple and robust:

  1. The sample is allocated to all 31 Iranian provinces in accordance to their population size.

  2. All settlements within each province are categorized into seven population groups, one group for all rural settlements and six groups for urban settlements.

  3. The sample allocated to each province is distributed among each of the seven population groups relative to each group’s population size relative to the population of that province.

  4. One settlement within each of the seven groups is randomly selected and the interviews allocated to that group are conducted in the randomly selected settlement.

  5. After fixing the list of area codes and telephone exchanges for landline telephones in each of the randomly selected settlements, Random Digit Dialing (RDD) is used to reach random households.

  6. When a residence is reached, a qualified respondent is randomly selected from within that household, often using the random table technique.

  7. An initial attempt and at least two callbacks are made in an effort to complete an interview with the randomly selected respondents.

  8. All of the interviews are conducted in a centralized call centers, all interviewers are continuously monitored and all interactions are recorded for quality control purposes.

  9. Our Call Center is staffed with interviewers native in the following ethnic languages and dialects of Iran:

  • Persian/Farsi

  • Azerbaijani

  • Gilaki

  • Mazandarani

  • Kurdish

  • Luri

  • Arabic

  • Balochi

  • Turkmen

  • Tat

IranPoll training
It’s not easy conducting opinion polls in Iran. But IranPoll has a good track record by using anonymous phone surveys. It has accurately predicted presidential election result.
— Erlich, R. (2018). Iran Agenda (1st ed., pp. 129). Abingdon: Routledge.

phone penetration in Iran

Phone survey is an extremely strong mode of data collection in Iran, as the response rate IranPoll obtains is very high (around 86%) and the phone penetration in Iran is almost universal. Based on the 2013 report by “Statistical Centre of Iran”, about 98% of Iranians households (22.3 million) had access to telephone (fixed or mobile cellular telephone or both) at home. These shares were 99% for urban and 94% for rural households. 5% had a fixed telephone only, 1.5% were with a mobile telephone only, and 91% enjoyed both fixed and a mobile telephone. In addition, 46% of households (10.5 million) - 54% urban and 23% rural - had access to a computer at home. Based on the 2016 report by “Statistical Center of Iran”, 62.1% of urban Iranian households and 55.5% of total Iranian households have access to the internet. [source]

OUR client Process

In Telephone (CATI) and Omnibus projects, we typically go through the following process for each of our clients:

  1. Depending on client’s preference, the client will either send us a draft questionnaire or send us a list of topics/questions in which the client is interested.

  2. IranPoll will then either make comments on the client’s draft questionnaire or develop a questionnaire to cover the research questions of the client.

  3. IranPoll and the client will have few rounds of deliberation (usually two or three) to incrementally enhance the questionnaire to the level that satisfies all client needs and observes all scientific standards. Throughout the process, IranPoll will draw on its past experiences and its local knowledge to help the client develop a valid and reliable survey instrument.

  4. After IranPoll and the client arrive at a final questionnaire approved by the client, if needed, IranPoll will translate the instrument into Persian, and make it ready for the field.

  5. IranPoll will propose a sample design for client’s approval based on client’s preferences and scientific standards. At this stage client will need to provide IranPoll with the desired target population as well as any oversampling the study might require.

  6. Once the client approves the methodology, sample design, and the questionnaire, IranPoll will commence fieldwork.

  7. The duration of fieldwork depends on a number of factors which will be discussed in detail with the client in advance. During the fieldwork IranPoll will regularly update the client on the fielding progress.

  8. When data is collected, IranPoll will provide client with the data file, and any other agreed upon deliverables. The data file is normally in SPSS format, but can be adjusted to the client’s preferences.

  9. Depending on the client’s preference, IranPoll can also analyze the data and produce statistical reports at an additional cost.



IranPoll’s online panel respondents have been recruited from probability-based sources. Panelists are past Telephone (CATI) or Face-to-Face survey respondents who use the internet and have accepted to become a part of IranPoll’s online panel.

Based on the 2016 report by “Statistical Center of Iran”, 62.1% of urban Iranian households and 55.5% of total Iranian households have access to the internet. [source]

IranPoll follows a strict recruitment and maintenance standard:

  • All IranPoll panel members have been validated through a telephone interview conducted over the panel members’ personal cellular phones.

  • Panel members are unequivocally informed during the validation process that they must provide a proof of identity matching their online panel profile before they can claim any reward.

  • Individuals who fail to provide such proof are removed from the panel and are prevented from ever joining IranPoll’s online panel.

  • IranPoll also monitors the panel for fraudulent activities and permanently removes offending panelists.

  • No individual can partake in IranPoll or any of its client’s online surveys without being electronically authenticated first.

  • In line with ESOMAR standards, IranPoll prevents users from taking each survey more than once.



In line with our strict validation and authentication standards and procedures, IranPoll takes its responsibility to protect the privacy and personal information of its panel members very seriously. We particularly follow Article 4.3 of ESOMAR/WAPOR guidelines, which ordains that:

Researchers must respect the principles of data protection and privacy (see Article 7 of the ICC/ESOMAR International Code). In some parts of the world, especially where democracy is not well-established, the importance of protecting respondents and the confidentiality of the information they provide is even more important… Personal information must only be collected and used for specified research purposes. The researcher must ensure that respondent’s personal identity is withheld from the client/research user… Researchers must ensure that adequate security measures are employed to prevent unauthorised access, manipulation and disclosure to the personal data, including any possible third parties.

IranPoll has adopted a series of measures to give confidence to its Iranian panel members that their personal identity will never be disclosed to any third party. These measure extend from standard privacy protocols, to providing respondents with high-quality VPN services that to a degree prevents online fingerprinting by masking their exact whereabouts, browser and system details, and IP addresses when they partake in our survey.


INTERVIEWER and staff training

All of our interviewers and staff need to enroll and pass our training standard modules. Our interviewer and staff training includes covering two major polling industry codes of conduct and quality:

1.     The ESOMAR/WAPOR Guideline on Opinion Polls and Published Surveys sets out the responsibilities of researchers to conduct opinion polls in a professional and ethical way. It was jointly prepared by the World Association for Public Opinion Research (WAPOR) and the European Society for Opinion and Marketing Research (ESOMAR).

2.     The ICC/ESOMAR ethics code on Social Research, developed jointly between the International Chamber of Commerce (ICC) and ESOMAR.

As a member of WAPOR, we are committed to following its standards pertaining to Professional responsibility and transparency and Data protection and privacy. In addition, our supervisors are extensively trained to ensure that all interviewers strictly adhere to our standards and code of conduct.

Human Subjects Research training

Beside our technical call center training, the training includes a human subjects training portion. We have designed this potion based on the method used by Collaborative Institutional Training Initiative (CITI) Program at the University of Miami for their “Human Subjects Research (HSR)” training. We focus on the “Social-Behavioral-Educational (SBE)” portion of their training including topics on Ethical Principles, Assessing Risk, Informed Consent, Privacy and Confidentiality, and Unanticipated Problems and Reporting Requirements.

IranPoll is unique in that it uses interviewers fluent in the vernaculars of various regions in Iran.

What makes us unique?

  • Local experience coupled with scientific expertise.

  • Ability to collect field data from Iran.

  • Exclusive access to VoxIran, the single most comprehensive databank of polls and surveys of the Iranian people.

  • Decade long experience in surveying the Iranian people.

  • Ability to conduct interviews in local languages and dialects.