Valencian Community PAU General Sciences Practice Questions - Valencian Community PAU General Sciences (Ciencias Generales Ciències Generals 2o Bachillerato) Exam

To guarantee that every participant receives some active medical benefit during the trial. To establish a baseline that isolates the specific physiological effect of the vaccine from placebo responses or natural recovery. To eliminate the requirement for statistical significance testing when comparing results. To double the sample size of the treatment group without incurring additional manufacturing costs.