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Fig. 2 | International Journal of Behavioral Nutrition and Physical Activity

Fig. 2

From: Impact of offering cycle training in schools upon cycling behaviour: a natural experimental study

Fig. 2

Conceptual models guiding analyses. MCS = Millennium Cohort Study. In this model, square boxes denote measured variables; circles denote unmeasured variables; and solid lines show hypothesised causal relationships. Part A shows the conceptual model guiding our primary analyses, concerning the effect of offering Bikeability in school upon cycling frequency. Part B shows a more detailed version of this conceptual model that hypothesises the role of participation in cycle training as a mediator, and also shows how participation in cycle training might be subject to confounding by measured and unmeasured characteristics

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