Assignment: Based on the data supplied in the "Case Study Performance Tasks" document, how would you evaluate the intervention using the single-case research design of the case study?

Jason is a 12-year-old male diagnosed with autism spectrum disorder (Level 2). He is currently attending school in a self-contained special education classroom in a suburban middle school. His class consists of five students with one head teacher and five aides; one assigned to each student. A BCBA worked closely with the teacher in developing programming in supervising the work of the aides. The class utilizes applied behavior analysis (ABA) including discrete trials to teach social and academic skills. In addition to applied behavior analysis being implemented in the classroom, Jason is receiving applied behavior analysis training at home five nights a week for a total of 10 hours per week under the direction of a BCBA. The school and home-based ABA programs are coordinated, and data shared between the behavior analysts. The skills taught in school are reinforced daily at home and vice versa.

Treatment Goal: Spontaneous and prompted social greeting behaviors with unfamiliar persons in social settings in public places (e.g., grocery store).

Possible Target Behaviors: Making eye contact Acknowledging the other person without prompting Offering a verbal response to the other person's greeting Responding reciprocally with a wave or a smile Maintaining appropriate distance between him and the other person

Comprehensive Test of Nonverbal Intelligence: Nonverbal IQ Standard Score = 67 (Very Poor range) Pictorial Nonverbal IQ Standard Score = 70 (Borderline range) Geometric Nonverbal IQ Standard Score = 68 (Very Poor range).

Academic Skills Assessment Identifies numerals and number words to nineteen Sings parts of the alphabet song Identifies letters of the alphabet Identifies colors and shapes Name planets Points to body parts Matches words/phrases to pictures Reads basic words and passages Tells biographical information accurately Complete open-ended sentences by matching a picture with a verbal response.

Vineland Adaptive Behavior Scales (VABS) (Age equivalent scores): Communication Skills = 2.8 Daily Living Skills = 5.2 Socialization Skills = 3.4 Motor Skills = 5.8

Data (All percentage of observed intervals)

Making Eye Contact Baseline Intervention 60 60 60 60 40 65 50 70 55 70 60 65 60 75 75 80 75

Acknowledging the Other Person Without Prompting Baseline Intervention 60 40 50 45 40 50 30 50 40 50 40 55 40 50 50 55 55

Offering a Verbal Response to the Other Person's Greeting Baseline Intervention 70 65 70 70 65 80 75 75 70 75 75 80 70 80 75 80 80

Responding Reciprocally with a Wave or a Smile Baseline Intervention 80 80 75 80 70 65 75 85 75 90 80 85 80 90 95 90 90

Maintaining Appropriate Distance Between Him and the Other Person Baseline Intervention 60 60 55 65 55 55 60 65 65 70 60 75 60 70 75 75 70