# case study 1

Pages: 4 (1087 words) Published: March 12, 2014
﻿Case Study 1: Martin
Martin, a behavior analyst, is working with Sara, a 14-year-old girl with severe developmental delays who exhibits self-injurious behavior (SIB). The self-injurious behaviors included pulling her hair, biting her arm and banging her head against the wall. After conducting a functional analysis, Martin decided to employ an intervention program consisting of differential reinforcement of other (DRO) desired behavior. Martin collected data on Sara's SIB before and during the intervention. Below is a depiction of the data that Martin collected: Sara’s Frequency of SIB

BASELINE  Occurrences
DRO Occurrences
22
5
25
5
27
3
26
2

Address the following questions, and complete the following requirements: 1. Create a basic line graph using Microsoft Excel, to be included in your Word document. The graph should depict the data provided in this case study. You should only need to create one graph, with SIB depicted, both in baseline and in intervention.

2. What type of research design did Martin employ when working with Sara? The research design that Martin implemented when working with Sara is the A-B Design. The A-B Design has just two phases: baseline and treatment, where A = baseline and B = treatment (Miltenberger, p.47). An A-B Design is used in ABA research and can be used to compare a baseline and treatment method to determine whether the behavior changed in the expected way after treatment.

According to the data, did the intervention that Martin selected work in modifying Sara's self-injurious behavior? Based on the information on the graph, at baseline, the score or rate of biting, hair pulling and head banging was 22, 25, 27 and 26, respectively. Thus, a significant deduction is reflected in the data at intervention with scores or rates at 5, 5, 3 and 2 respectively. Basically, on a line graph as the scores on the Y axis increase, those on the X axis decreased. 1. Martin had considered using an...