# Consultancy Research - Delivery of Discrete Choice Experiments

> A sourced UK public sector contract award published by Midlands & Lancashire C S U.

## Key facts

- Buyer: Midlands & Lancashire C S U
- Supplier: [IPSOS RESEARCH LTD](/suppliers/ipsos-research/public-sector-contract-awards)
- Award value: £43,000
- Tender value: £43,000
- Award date: 2 June 2022
- Published: 29 November 2022
- Contract start: 2 June 2022
- Contract end: 1 December 2022
- Stage: awarded
- Procurement category: services
- Notice ID: d25a385b-be67-4a7b-bc22-7eb1939a8ce7-594301
- OCID: ocds-b5fd17-5333d64c-da9c-4548-afaf-aa5f3e6b7155

## Description

In brief, a range of COPD treatments will be characterised by their component features, known as attributes\. Each attribute will then be represented by a range of options, known as levels\. These attributes and levels can be formulated into a range of different scenarios, each of which represents a different combination of levels for each attribute\. Respondents are asked to make a series of choices within scenario sets and, through their choices, inferences can be made about their relative preferences across attributes/levels\. While respondents are only subjected to a small number of possible combinations of these levels, Bayesian statistical methods can be applied to determine the impact on treatment preference for any combination of attribute levels\. A first step of the DCE is to define the most relevant attributes for relevant COPD treatment/ management strategies and, for each attribute, to define the levels to be tested\. It is recommended to use a maximum of eight attributes with two to three levels\. With more than 8 attributes, there is a risk that respondents start to use simplifying heuristics to answer questions and they will typically only focus on 2-3 attributes important to themselves when making choices between scenarios, thereby potentially reducing the robustness of the results\.

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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/d25a385b-be67-4a7b-bc22-7eb1939a8ce7-594301)