The Unique Extended Selection Cohorts Design for the Evaluation of the School-Based Jump-In Intervention on Dietary Habits: A Study Protocol

Froukje E. Takens, Vincent Busch, Joanne K. Ujčič-Voortman, Manon van Eijsden and Mai J. M. Chinapaw
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Froukje E. Takens: Department of Public and Occupational Health, Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
Vincent Busch: Sarphati Amsterdam, Public Health Service of Amsterdam, Nieuwe Achtergracht 100, 1018 WT Amsterdam, The Netherlands
Joanne K. Ujčič-Voortman: Sarphati Amsterdam, Public Health Service of Amsterdam, Nieuwe Achtergracht 100, 1018 WT Amsterdam, The Netherlands
Manon van Eijsden: Voedingsjungle, p/a Arnhemseweg 114, 3817 CK Amersfoort, The Netherlands
Mai J. M. Chinapaw: Department of Public and Occupational Health, Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands

IJERPH, 2020, vol. 17, issue 4, 1-13

Abstract: Background : To promote healthy dietary and physical activity behaviour among primary school children, the city of Amsterdam structurally implements the school-based Jump-in intervention in over half of its primary schools. Previously shown to be effective in stimulating physical activity and outside recess play, our study is the first to evaluate Jump-in’s effect on children’s dietary behaviour. Evaluating the effectiveness and implementation process of an intervention in a real-life setting requests an alternative study design. Methods : we chose a mixed-methods, quasi-experimental Extended Selection Cohorts design to evaluate Jump-in’s effectiveness and implementation process. Children and parents from the first ten primary schools that enrolled in the programme in 2016–2017 were invited to participate. The primary outcomes were children’s dietary behaviour and behavioural determinants, assessed by child and parent questionnaires, and photographs of the food and drinks children brought to school. Process indicators, contextual factors and satisfaction with the programme were assessed by interviews with health promotion professionals, school principals, school project coordinators, and teachers; focus group discussions with parents and children; and document analysis. Discussion : Conducting research in a real-life setting is accompanied by methodological challenges. Using an Extended Selection Cohorts design provides a valuable alternative when a Randomized Controlled design is not feasible.

Keywords: school-based intervention; dietary behaviour; children; study protocol; Extended Selection Cohorts design; mixed methods; effect evaluation; process evaluation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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