Given the behavioral scenario and responses on prior parts of the assignment, what is an appropriate independent variable and adequately describe the intervention? Protocols have been provided to help you describe key steps in the procedure.

AB545 Research Proposal Project: Protocol for Scenario 1 Procedures: . When Marco begins to emit vocal stereotypy: Say "Marco" in a neutral tone of voice Establishing eye contact with Marco Ask Marco a question he is able to answer (see list below) If Marco answers correctly absent vocal stereotypy, provide praise If Marco answers correctly but continues engaging in vocal stereotypy, provide a neutral statement (e.g., "ok," "that's it") and present the next question If Marco does not answer or answers incorrectly, repeat the question and provide a full echoic prompt . If Marco answers correctly absent vocal stereotypy, provide low-affect praise and present the next question If Marco answers correctly but continues engaging in vocal stereotypy, provide a neutral statement (e.g., "ok," "that's it") and present the next question If Marco again does not answer or answers incorrectly, present a motor imitation task and follow a least-to-most prompt hierarchy to evoke a correct response (*for the purposes of this assignment, you do not need to break this down into specific procedures and can leave it at this level of description After a correct response, return to vocal questions O Continue asking questions until Marco correctly answers 5 consecutive questions absent vocal stereotypy Known Questions: Hold up a common item and ask "What is this?" Hold up a solid colored item and ask "What color is this? . . Engage in a common action and ask "What am I doing?" "What is alan [common item] for?" (e.g., "What is a car for?") . "What is for [function-ing]?" (e.g., "What is for driving?") "What is alan [common items from common categories]"? (e.g., "What is a dog?") 'Tell me alan [category]?" (e.g., "Tell me an animal") "What color is alan [common solid color items]?" (e.g., "What color is an apple?)