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Psychometric characteristics of process evaluation measures for a rural school-based childhood obesity prevention study: Louisiana Health.

ABSTRACT: To evaluate the implementation of intervention components of the Louisiana Health study, which was a multicomponent childhood obesity prevention program conducted in rural schools.Content analysis.Process evaluation assessed implementation in classrooms, gym classes, and cafeterias.Classroom teachers (n ?=? 232), physical education teachers (n ?=? 53), food service managers (n ?=? 33), and trained observers (n ?=? 9).Five process evaluation measures were created: Physical Education Questionnaire (PEQ), Intervention Questionnaire (IQ), Food Service Manager Questionnaire (FSMQ), Classroom Observation (CO), and School Nutrition Environment Observation (SNEO).Interrater reliability and internal consistency were assessed on all measures. Analysis of variance and ?(2) were used to compare differences across study groups on questionnaires and observations.The PEQ and one subscale from the FSMQ were eliminated because their reliability coefficients fell below acceptable standards. The subscale internal consistencies for the IQ, FSMQ, CO, and SNEO (all Cronbach ? > .60) were acceptable.After the initial 4 months of intervention, there was evidence that the Louisiana Health intervention was being implemented as it was designed. In summary, four process evaluation measures were found to be sufficiently reliable and valid for assessing the delivery of various aspects of a school-based obesity prevention program. These process measures could be modified to evaluate the delivery of other similar school-based interventions.

SUBMITTER: Newton RL

PROVIDER: S-EPMC3132146 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundIncreasingly, public health interventions are delivered via telephone and/or text messages. Recent systematic reviews of early childhood obesity prevention interventions have not adequately reported on the way interventions are delivered and the experiences/perceptions of stakeholders. We aimed to summarise the literature in early childhood obesity prevention interventions delivered via telephone or text messages for evidence of application of process evaluation primarily to evaluate stakeholders' acceptability of interventions.MethodsA systematic search of major electronic databases was carried out using the Population, Intervention, Comparison, Outcomes framework. Studies were included if interventions were delivered via telephone/text messages; aimed at changing caregivers' behaviours to prevent early childhood obesity; with one or more outcomes related to early obesity risk factors such as breastfeeding, solid feeding, tummy time, sleep and settling, physical activity and screen time; published from inception to May 2020. All eligible studies were independently assessed by two reviewers using the Cochrane Collaboration tool for assessing risk of bias. Qualitative studies were assessed using the Consolidated Criteria for Reporting Qualitative Research and Standards for Reporting Qualitative Research tools.ResultsTwenty-four studies were eligible, and the overall risk of bias was low. Eight studies (33%) had evidence of process evaluation that examined participants' perceptions of interventions. Participants appreciated the convenience of receiving interventions via telephone or text messages. 63% of all studies in this review showed improvement in one or more behaviours related to childhood obesity prevention. Participants were likely to modify behaviours if they received information from a credible source such as from health professionals.ConclusionThere is limited reporting of stakeholders' experiences in early obesity prevention studies delivered by telephone or text messages. Only one-third of studies examined participants' acceptability and the potential for delivery of childhood obesity prevention interventions conveniently using this mode of delivery. Interventions delivered remotely via telephone or text messages have the potential to reach equal or a greater number of participants than those delivered via face-to-face methods. Future research should build in process evaluation alongside effectiveness measurements to provide important insight into intervention reach, acceptability and to inform scale up.Trial registrationPROSPERO registration: CRD42019108658.

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Psychometric characteristics of process evaluation measures for a rural school-based childhood obesity prevention study: Louisiana Health.

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