In Applied Behavior Analysis (ABA), there are two types of prompts: stimulus prompts and response prompts.
Stimulus prompts are external cues that remind the individual of what they should be doing. For example, a picture of a drink may be a stimulus prompt for an individual to ask for a drink.
Response prompts are cues that help the individual to respond correctly. For example, if an individual is asked to name a color, a response prompt might be to say “red” if the color red is presented.
Both stimulus and response prompts are important in ABA, as they help the individual to learn new skills and to generalize those skills to new situations.