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Why Us??

Quality Assurance Measures take place at every stage of the study 

Quality Assurance in Field

Proper and adequate training to all field interviewers and supervisors irrespective of prior experience they have.

Assignments given to field staff so as to assess understanding levels during training.

Scrutiny by Supervisor / Field Editor in case of large scale surveys/ Field Executive.

Back check / spot check by Supervisor (20% in Field and 10% over phone).

Back check by Field Executive (5%).

Field visits by senior field professionals.

Accompanied interviews by Supervisors / Field Executive  – 100% during the first few days of field work.

Quality Assurance in Data Processing

Double data entry

100% questionnaire scrutiny before starting data entry

Regular data checking during data entry for validate the assure quality outputs

Outputs as per the research requirements

Stack of hands

   Multidisciplinary and experienced team  

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 Capability of handling sensitive issues/topics  Issues/ Topics

HIV/AIDS related

Sexual and Reproductive health related with Adolescent girls/boys

Domestic violence among woman at household level

Ability to carry out field work in sensitive, conflict and geographically difficult areas 

Worked in the Valley of Bastar and Dhantewada carrying out survey among the Pregnant and Lactating mother and the Nutrition Rehabilitation Centers.
In the North east corner of the country we have done survey in Assam, Manipur and Nagaland.

Our Field team has the ability to work anywhere and in any place under any given circumstance.

Image by Ahmed Nishaath
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    Ability to use CAPI for data collection  


Sigma has experience in handling CAPI Surveys using PDA, Laptop/mini laptop and Android Tablets/Mobile applications.

Experienced team in CAPI Programming

Experienced in CAPI tool training

Capability of handling large scale studies in CAPI using large no. of equipment.

IRB for ethical review and approvals 

Sigma-IRB has been associated with the highly qualified members. They are expert in the field of population and reproductive health, medicine (non-clinical), social research, legal aspects of research etc.

Sigma organises IRB meetings as frequently as possible so as to hasten the process of IRB review or once in two months as per the requirement.

Please contact: Dr U V Somayajulu (, Sigma IRB member secretary, Sigma Research and Consulting Private Limited

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