Berkshire Association for Behavior Analysis and Therapy
The B. F. Skinner Foundation sponsors this award through the Berkshire Association for Behavior Analysis and Therapy.
2014 Student Research Award
Title: Effects of Serial and Concurrent Training on Generalization to Novel Parameters
Advisor: Dr. Timothy Vollmer
Abstract: In many cases, generalization to novel exemplars does not happen automatically; specific teaching procedures must be used to promote generalization of newly acquired responses. One specific method recommended by Stokes and Baer (1977) is to train sufficient exemplars of stimuli. This research will evaluate the effectiveness of two different training methods (serial and concurrent training) on the generalization to tact responses to novel parameters (therapists and settings). In serial training, the therapist/setting present in training will only change once mastery has been met with the previous therapist/setting; however, in concurrent training, the therapist/setting will alternate across sessions from the outset of training. Differences in generalization following each method of training will be assessed throughout the study.
2014 Student Poster Award:
Title: A Comparison of Treatments for Challenging Behavior in an Individual with Rett Syndrome
Advisor: Dr. Diana Parry-Cruwys
Abstract: Pervasive hand movements such as hand wringing and hand mouthing are common in individuals with Rett Syndrome. A comparison between a piece of adaptive equipment (an elbow orthosis) and a physical interruption procedure was conducted with a 2-year-old girl with Rett syndrome who exhibited both hand wringing and hand mouthing behavior. An elbow orthosis and a physical interruption procedure were alternated to determine if one was more effective at reduction of both behaviors. The results of both phases of this study indicated that while both treatments reduced hand wringing and hand mouthing, the elbow orthosis condition resulted in fewer instances and lower rates of both behaviors. Both adaptive equipment and physical interruption procedures may be an effective method for decreasing pervasive hand movements in individuals with Rett Syndrome.
2013 Student Research Award
Title: “An Evaluation of Parents’ Acquisition and Generalization of Teaching Functional Communication and Delay and Denial Tolerance to Decrease Child Problem Behavior”
Advisor: Dr. Kevin Luczynski
Abstract: The purpose of our study is to extend the preschool life skills (PLS; Hanley, Heal, Tiger, & Ingvarsson, 2007) by assessing stimulus generalization of parents’ implementation of the functional communication and self-control units with their child at home following brief (1-2 hr) in-clinic training. Following parent training in the clinic, we will assess parents’ accuracy in implementing the teaching procedures in their home and their child’s acquisition of the skills. After the child acquires the communication response, we will assess whether generalization of the teaching skills occurs across novel (untaught) evocative situations at home. We will measure parents’ procedural integrity and conduct booster-training sessions if errors are observed. Teaching parents to be the primary behavior-change agent may have implications for the long-term maintenance of their child’s appropriate communication while preventing the development of severe problem behavior. We will use web-based cameras to gather descriptive data on the type of procedural integrity errors made and challenges to treatment implementation in the home.
2013 Student Poster Award:
Title: “Negative Reinforcer Magnitude Manipulations without Extinction for Treating Escape-Maintained Problem Behavior.”
Advisor: Dr. Eileen M. Roscoe
Abstract: Differential negative reinforcement of alternative behavior (DNRA) without extinction has been found ineffective for reducing escape-maintained problem behavior. However, DNRA without extinction has been found effective when used in conjunction with discrepant negative reinforcer magnitudes (longer break for compliance than for problem behavior). Subsequent replication attempts have not yielded similar findings. Therefore, the potential utility of DNRA with discrepant reinforcer magnitudes remains unclear. In the current study, we assessed the effects of DNRA without extinction when discrepant reinforcer magnitudes for compliance and problem behavior were used in a participant with an autism spectrum disorder. An escape baseline was compared to an equal magnitude escape condition (30 s for compliance and problem behavior), a large discrepancy escape condition (240 s for compliance, 10 s for problem behavior, and a moderate discrepancy escape condition (90 s for compliance, 10 s for problem behavior), using a reversal design. DNRA without extinction with a large discrepancy in reinforcer magnitude resulted in shifts in response allocation from problem behavior to compliance, whereas the other conditions did not. Interobsever agreement was collected for 31% of sessions and averaged 93.6% (range, 83.3% to 100%) for self-injury and 98.6% (range, 86.7% to 100%) for compliance.
2012 Student Research Award:
Title: “Prevalence and Effects of Teaching Errors on Acquisition of Self-Care Chains”
Advisor: Dr. Amanda Karsten
Abstract: Research demonstrates that training packages consisting of differential reinforcement and prompting comprise an effective method for teaching behavior chains to children with developmental disabilities. However, some children may fail to acquire important behavior chains, such as those associated with self-care skills (e.g., washing hands, making snack, folding clothes). The proposed study will evaluate the effects of empirically-derived teaching errors on the acquisition of self-care behavior chains. During the first phase of Study 1, teachers trained in behavior analytic teaching strategies will be asked via internet survey to describe problems that occur when teaching self-care skills to children with autism. Survey respondents who report a high degree of difficulty will be asked to participate in a descriptive assessment. The second phase of Study 1 will consist of a descriptive assessment designed to explore the prevalence of various deviations from prescribed teaching procedures (i.e., teaching errors) by teachers instructing self-care behavior chains. In Study 2, relative effects of the most prevalent teacher errors will be evaluated in terms of student learning. A multiple baseline across behavior chains design will be used to test whether the empirically-derived errors are functionally related to learning outcomes. Following this analysis, the most egregious teaching errors will be assessed with multiple between-participants demonstrations to determine the individual effects of each teaching error in isolation, including an analysis of which teaching errors are most detrimental to learning. Teaching errors assigned to each self-care behavior chain will be systematically varied across participants. Results will be discussed in terms of how research may help to identify priorities for teacher training and, potentially, to aid in the development of more user-friendly and effective practices for teaching behavior chains.
2012 Student Poster Award:
Title: “Examining the Preference for Fixed Contingent and Fixed Noncontingent Reinforcement Schedules.”
Advisor: Dr. Lauren Beaulieu
Abstract: In 3 translational studies, we assessed the preference for contingent reinforcement (CR) and noncontingent reinforcement (NCR) with 11 undergraduates. In Study 1, we assessed the preference for CR and NCR with work materials present during all conditions. In Study 2, we assessed the preference for CR and NCR with work materials absent during NCR. In study 3, we assessed the preference for intermittent CR and NCR. Across all studies, the reinforcement amount was yoked from CR to NCR and we included a response cost condition to assess the value of the stimuli used as reinforcers and as a control during the preference assessment.Two observers independently collected data on the number of filed papers and initial link card selections across 100% of sessions and participants. Mean IOA for filed papers was 99% (range, 93% to 100%) across all conditions and participants. We calculated IOA on card selections by dividing the number of agreements by the total number of selections and multiplying by 100. IOA for card selections was 100% across all sessions and all participants. We found that 6 participants preferred CR, 4 participants demonstrated indifference, and 1 participant preferred NCR. No participant preferred response cost. We shifted the preference of 10 of the 11 participants by manipulating the yoked reinforcement schedule. We discuss the implications of these results.
2011 Student Research Award:
Title: “Comparison of Two Teaching Procedures on Generalization Across Settings and Time”
Advisor: Dr. Claire St. Peter
Abstract: Discrete-trial training (DTT) has been demonstrated to be an effective teaching tool; however, little research has been conducted demonstrating if skills learned by DTT generalize to naturalistic learning contexts (e.g., Lovaas, 1987). One method of DTT, task interspersal, has been demonstrated, to result in faster acquisition and better generalization compared to massed-trial procedures. Rowan & Pear (1985) attributed enhanced acquisition and generalization of skills following task-interspersal training to increased reinforcer density and enhanced stimulus control. The present study will investigate the effects of task-interspersal and massed-trial procedures on acquisition, maintenance, and generalization to a naturalistic learning context. In addition, two test procedures will attempt to identify whether increased reinforcer density or enhanced stimulus control may contribute to the effectiveness of task-interspersal procedures.
2011 Student Poster Award:
Title: “An Evaluation of a Response Prompt Assessment”
Advisor: Dr. Jason Bourret
Abstract: Acquiring new skills can be difficult for students with autism. Research is still needed to identify a teaching procedure that helps students learn most efficiently. Three different teaching modalities were compared in a multi-element design using novel Lego constructs: 1) verbal+gestural, 2) model, and 3) manual guidance. All procedures were taught with a forward task analysis to 5 different participants. Once a participant acquired one construct associated with a specific teaching procedure, 3 new constructs were presented and taught with the same modalities for replication purposes. In a 2nd phase, novel Lego constructs were used again to compare three different prompt fading procedures: 1) delay fading, 2) least-to-most fading, and 3) most-to-least fading. In a final generality phase, clinically relevant skills were used to replicate and generalize findings obtained in the first two phases. The results of this assessment will be used to further evaluate and develop an assessment which identifies the most efficient teaching procedure for individuals with autism.
2010 Student Research Award:
Title: “Evaluating Treatment Integrity Across Prompting Strategies with Paraprofessionals using a Discrete-Trial Training Method”
Advisor: Dr. Michael Cameron
Abstract: Treatment integrity is an important and largely unexamined area in the school consultation literature. This study will investigate the relationship between procedural complexity and treatment integrity. Seven paraprofessionals in one public school will teach seven autistic children. A variety of receptive targets will be taught in a discrete trial format using two different prompting strategies: flexible prompting and least-to-most prompting. In the context of an alternating treatments design, percentage correct of discrete trial teaching components will be measured in the two prompting conditions. This research will provide school professionals with important information regarding the relationship between procedural complexity and treatment integrity. School consultants may use this information to identify procedures that require less follow up.
2010 Student Poster Award:
Catherine Taylor-Santa, Caldwell College
Title: “Discrimination Training Procedure to Establish Conditioned Reinforcers for Children with Autism”
Advisor: Dr. Tina Sidener
Abstract: Although conditioned reinforcers are used in many behavioral intervention programs for individuals with developmental disabilities, little research has been conducted with this population to determine optimal methods for producing conditioned reinforcers. The current study employed a multiple-probe design across stimuli with three children with autism to evaluate the effects of a discrimination training procedure on the reinforcing effectiveness of arbitrary stimuli. Specific procedures were incorporated to increase methodological rigor (i.e., use of new response, reinforcer and neutral stimulus assessments) and enhance differential responding (i.e., alternation of SD and S-delta trials). For all three participants, responding in the SD condition increased briefly during all evaluations and remained low in the S-delta condition. IOA data were collected for 50% of randomly selected sessions for each participant and agreement was 100% for all participants except for post-test sessions for one participant (M = 99.4%; range = 90%-100%). Recommendations for future research on methods to increase the duration of these effects are provided.