# Smartphone based Respondent Driven Sampling

> Contract award record from UK public-sector procurement sources.

## Key facts

- Public buyer: [Office for National Statistics](/buyers/office-for-national-statistics/contract-awards)
- Contract winner: University Court of the University of Glasgow
- Award value: £80,000
- Tender value: £80,000
- Award date: 4 December 2023
- Published: 11 March 2024
- Contract start: 26 February 2024
- Contract end: 26 December 2024
- Stage: awarded
- Procurement category: services
- Notice ID: 049184d4-f157-4c25-9b0c-31bc07ebae91-730756
- OCID: ocds-b5fd17-74551da6-75b9-4e1e-af58-0981440eed1e

## Description

The FPMS team have identified a method called Respondent Driven Sampling \(RDS\) which is designed for surveying small or hard to reach populations\. The RDS method comprises three specific elements: firstly, the researcher must consider RDS assumptions and whether they are likely to be met in a study under consideration; secondly, the data collection is conducted in a manner that resembles 'snowballing' but, crucially, information is collected allowing identification of who invited whom to the survey; and lastly a bespoke RDS algorithm that exploits this information to correct for biases that occur in 'snowballing' is used for data analysis

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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/049184d4-f157-4c25-9b0c-31bc07ebae91-730756)