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Table 1 Criteria list for assessment of the methodological quality of fidelity components

From: Measuring implementation fidelity of school-based obesity prevention programmes: a systematic review

Criterion Fidelity component receives a positive score Fidelity component receives a negative score
1. Model used for evaluation If a theoretical framework or model for the evaluation was used and reported or referred to in the article. If no theoretical framework or model was used for the evaluation.
2. Level of evaluation If the fidelity component was evaluated on two or more levels (i.e. school director, teacher, student).a If the fidelity component was evaluated on only one level (i.e. school director, teacher, student).a
3. Operationalisation of fidelity component If the fidelity component was defined or operationalised. If only the name of the fidelity component was provided and not further defined or operationalised.
4. Data collection methods If two or more techniques for data collection were used (triangulation). If only one technique for data collection was used.
5. Quantitative fidelity measures If measurement of the fidelity component was performed with adequately described methods.b If measurements of the fidelity component was not performed with adequately described methods.b
6. Frequency of data collection If the fidelity component was measured on more than one occasion (e.g. pre, during after delivery). If the fidelity component was measured on only one occasion.
7. Relation fidelity component and programme outcome assessed If tested whether the fidelity component was related to programme outcomes. If not tested whether the fidelity component was related to programme outcomes.
  1. aonly applied to dose, responsiveness and differentiation, as it is not possible to evaluate adherence and quality of delivery on two or more levels – i.e. only on teacher level
  2. badequate = sufficient information to be able to repeat the study