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Development and validation of the Oxford Benchmark Scale for Rating Vaccine Technologies (OBSRVT), a scale for assessing public attitudes to next-generation vaccine delivery technologies

Abstract:

Next-generation vaccine delivery technologies may provide significant gains from both a technical and behavioral standpoint, but no scale has yet been developed to assess public attitudes to novel vaccine delivery technologies. We therefore performed a cross-sectional validation study that included 1,001 demographically representative participants from the UK and US to develop and validate a novel scale, the Oxford Benchmark Scale for Rating Vaccine Technologies (OBSRVT). A sample of 500 UK participants was used to perform exploratory factor analysis with categorical variables (using a polychoric correlation matrix) followed by promax oblique factor rotation to develop the initial model. This yielded a 15-item 4-domain scale with domains including acceptance (6 items), effectiveness (4 items), comfort (3 items), and convenience (2 items). This model was tested for robustness on a 501-participant demographically representative sample from the US. A confirmatory factor analysis with a Satorra-Bentler scaled test statistic was performed, which demonstrated adequate goodness of fit statistics including the root mean squared error of approximation (0.057), standardized root mean squared residual (0.053), and comparative fit index (0.938). Reliability as internal consistency was excellent (alpha = 0.92). Convergent validity with the Oxford Needle Experience Scale was supported by an adequate correlation (r = 0.31, p < .0001), while discriminant validity was supported by a lack of correlation with an unrelated question (r = -0.03, p < .0001). These findings suggest that the OBSRVT scale represents a feasible, valid, and reliable scale that could be used to gauge the acceptability of existing and future vaccine delivery technologies, and further investigation and testing should be considered.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1080/21645515.2025.2469994

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Sub department:
Institute of Biomedical Engineering
Research group:
Oxford Vaccine Group
Role:
Author
ORCID:
0000-0002-3256-3014
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Sub department:
Institute of Biomedical Engineering
Role:
Author
ORCID:
0000-0003-4508-4802
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Paediatrics
Research group:
Oxford Vaccine Group
Role:
Author
ORCID:
0000-0001-8685-7758
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Paediatrics
Research group:
Oxford Vaccine Group
Oxford college:
St Cross College
Role:
Author
ORCID:
0000-0001-7361-719X
More by this author
Institution:
University of Oxford
Division:
SSD
Department:
Law
Research group:
Centre for Health, Law, and Emerging Technologies (HeLEX)
Role:
Author
ORCID:
0000-0001-6870-6673



Publisher:
Taylor & Francis
Journal:
Human Vaccines and Immunotherapeutics More from this journal
Volume:
21
Issue:
1
Article number:
2469994
Place of publication:
United States
Publication date:
2025-03-03
Acceptance date:
2025-02-18
DOI:
EISSN:
2164-554X
ISSN:
2164-5515
Pmid:
40028861


Language:
English
Keywords:
Pubs id:
2095213
Local pid:
pubs:2095213
Deposit date:
2025-03-31
ARK identifier:

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