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assess the acceptability of the intervention to schools (principals and RSE teachers), male and female pupils and parents;
identify optimal delivery structures and systems for the delivery of the resource in the classroom;
establish participation rates and reach including equality of engagement across schools of different socio-economic and religious types;
assess trial recruitment and retention rates;
assess variation in normal RSE practice across the participating schools;
refine survey instruments as a result of cognitive interviews with male and female pupils;
assess differences in outcomes for male and female pupils;
identify potential effect sizes that might be detected in an effectiveness trial and estimate appropriate sample size for that trial; and
identify the costs of delivering If I were Jack and pilot methods for assessing cost effectiveness in a future trial.
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