Challenges and solutions for N-of-1 design studies in health psychology

© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. Theories of behaviour change and health behaviour change interventions are most often evaluated in between-person designs. However, behaviour change theories apply to individuals not groups and behavioural interventions ulti...

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Main Authors: Kwasnicka, Dominika, Inauen, J., Nieuwenboom, W., Nurmi, J., Schneider, A., Short, C., Dekkers, T., Williams, A., Bierbauer, W., Haukkala, A., Picariello, F., Naughton, F.
Format: Journal Article
Published: Routledge 2019
Online Access:http://hdl.handle.net/20.500.11937/74043
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author Kwasnicka, Dominika
Inauen, J.
Nieuwenboom, W.
Nurmi, J.
Schneider, A.
Short, C.
Dekkers, T.
Williams, A.
Bierbauer, W.
Haukkala, A.
Picariello, F.
Naughton, F.
author_facet Kwasnicka, Dominika
Inauen, J.
Nieuwenboom, W.
Nurmi, J.
Schneider, A.
Short, C.
Dekkers, T.
Williams, A.
Bierbauer, W.
Haukkala, A.
Picariello, F.
Naughton, F.
author_sort Kwasnicka, Dominika
building Curtin Institutional Repository
collection Online Access
description © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. Theories of behaviour change and health behaviour change interventions are most often evaluated in between-person designs. However, behaviour change theories apply to individuals not groups and behavioural interventions ultimately aim to achieve within-person rather than between-group change. Within-person methodology, such as N-of-1 (also known as single case design), can circumvent this issue, though has multiple design-specific challenges. This paper provides a conceptual review of the challenges and potential solutions for undertaking N-of-1 studies in health psychology. Key challenges identified include participant adherence to within-person protocols, carry-over and slow onset effects, suitability of behaviour change techniques for evaluation in N-of-1 experimental studies, optimal allocation sequencing and blinding, calculating power/sample size, and choosing the most suitable analysis approach. Key solutions include involving users in study design, employing recent technologies for unobtrusive data collection and problem solving by design. Within-person designs share common methodological requirements with conventional between-person designs but require specific methodological considerations. N-of-1 evaluation designs are appropriate for many though not all types of interventions. A greater understanding of patterns of behaviours and factors influencing behaviour change at the within-person level is required to progress health psychology into a precision science. Video abstract: Supplementary Material 1.
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institution Curtin University Malaysia
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publishDate 2019
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spelling curtin-20.500.11937-740432019-02-19T04:28:12Z Challenges and solutions for N-of-1 design studies in health psychology Kwasnicka, Dominika Inauen, J. Nieuwenboom, W. Nurmi, J. Schneider, A. Short, C. Dekkers, T. Williams, A. Bierbauer, W. Haukkala, A. Picariello, F. Naughton, F. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. Theories of behaviour change and health behaviour change interventions are most often evaluated in between-person designs. However, behaviour change theories apply to individuals not groups and behavioural interventions ultimately aim to achieve within-person rather than between-group change. Within-person methodology, such as N-of-1 (also known as single case design), can circumvent this issue, though has multiple design-specific challenges. This paper provides a conceptual review of the challenges and potential solutions for undertaking N-of-1 studies in health psychology. Key challenges identified include participant adherence to within-person protocols, carry-over and slow onset effects, suitability of behaviour change techniques for evaluation in N-of-1 experimental studies, optimal allocation sequencing and blinding, calculating power/sample size, and choosing the most suitable analysis approach. Key solutions include involving users in study design, employing recent technologies for unobtrusive data collection and problem solving by design. Within-person designs share common methodological requirements with conventional between-person designs but require specific methodological considerations. N-of-1 evaluation designs are appropriate for many though not all types of interventions. A greater understanding of patterns of behaviours and factors influencing behaviour change at the within-person level is required to progress health psychology into a precision science. Video abstract: Supplementary Material 1. 2019 Journal Article http://hdl.handle.net/20.500.11937/74043 10.1080/17437199.2018.1564627 Routledge restricted
spellingShingle Kwasnicka, Dominika
Inauen, J.
Nieuwenboom, W.
Nurmi, J.
Schneider, A.
Short, C.
Dekkers, T.
Williams, A.
Bierbauer, W.
Haukkala, A.
Picariello, F.
Naughton, F.
Challenges and solutions for N-of-1 design studies in health psychology
title Challenges and solutions for N-of-1 design studies in health psychology
title_full Challenges and solutions for N-of-1 design studies in health psychology
title_fullStr Challenges and solutions for N-of-1 design studies in health psychology
title_full_unstemmed Challenges and solutions for N-of-1 design studies in health psychology
title_short Challenges and solutions for N-of-1 design studies in health psychology
title_sort challenges and solutions for n-of-1 design studies in health psychology
url http://hdl.handle.net/20.500.11937/74043