Intervention
Behavioral:
• Pre Meal Presentation
Pre-Meal Presentation. In the Pre-Meal Presentation (PMP) condition, school staff delivered the plate of vegetable pieces prior to students regularly scheduled lunchtime (about 5 min). Like baseline, no programmed consequences were provided for student interaction or consumption of the vegetables.
• Pre Meal Presentation + Modeling
Similar to the prior condition, each participant will be offered a plate containing target foods for 4 min. Once the plate has been delivered to each participant, a staff person will model eating the food. The model will have an identical plate of food. Within six feet of students oriented towards the model (i.e., the students will be facing the model), the model will pick up one piece of food, say "Yum, this looks good" in a loud and excited tone, eat it, and then deliver a "soft" prompt to the participants to try it (e.g., "You should try this!"). Staff will avoid giving a firm/hard demand (e.g., "Eat the food"). Repeat this for four pieces of food, alternating between the two target foods, with about 10-20 sec between each bite. Repeat the model as necessary based on the room arrangement, such that each students contacts the model within six feet while oriented towards the model.
• Pre Meal Presentation + Token Economy
Similar to prior condition, expect each participant can earn tokens for eating food items. Tokens can be exchanged for small prizes (e.g., pencil or sticker) at the end of a session.