Intake Promoting Effects of Large Portions in Children

Each of four experiments involves a 2 x 2 within-subjects factorial design, in which the first factor is the portion size of a food served to children: foods will be served in a reference amount (i.e. 250 g macaroni and cheese) or doubled in size(i.e. 500 g of macaroni and cheese). In the Experiment 1, the second factor of the 2 x 2 design is meal type: whether the food is consumed at a meal or a snack. In experiment #2, the second factor is food type: fruit vs. vegetable. In experiment #3, the second factor is entree energy density: a regular energy density or a 40% greater energy density. In experiment #4, the second factor is plate size: a 6 inch plate vs. a 10 inch plate.