Children were also told that they could earn extra stars if their parents reported their behaviors during five dinner meals at home, with children dropping Parent Records in their classroom’s weekly Collection Box (with one star given for each dinner and for each
mealtime behavior reported, according to their group assignment to ‘‘LIONS’’ or ‘‘TIGERS’’). Collection Boxes were used to gather children’s nametags, pedometers, and Parent Records during
baseline and reward conditions. During the reward phase, research assistants totaled children’s stars according to their group assignments, so that on Reward Day children could trade 10 stars
for one prize.