Analysis of four measures of positional bias within a multiple stimulus without replacement preference assessment

Positional bias is a pattern of responding to a specific location that can be influenced by response effort and/or prior learning history. Prior research on positional bias within stimulus preference assessments have focused primarily on its use in paired stimulus assessments due to the complex nature of the multiple stimulus without replacement (MSWO) preference assessment. The present study is a secondary data analysis that utilized four different methods to measure side and center bias in a MSWO preference assessment for 19 young children with autism spectrum disorder. Participants displayed varying degrees of biased responding but collectively engaged in minimal biased responding. This study includes an analysis of the four methodologies, discussion of general patterns of responding, and general recommendations for the application of these methodologies in future research.     

The effects of self-monitoring on the procedural integrity of a behavioral intervention for young children with developmental disabilities

The effects of self-monitoring on the procedural integrity of token economy implementation by 3 staff in a special education classroom were evaluated. The subsequent changes in academic readiness behaviors of 2 students with low-incidence disabilities were measured. Multiple baselines across staff and students showed that procedural integrity increased when staff used monitoring checklists, and students' academic readiness behavior also increased. Results are discussed with respect to the use of self-monitoring and the importance of procedural integrity in public school settings.     

Mediating Access to Headsprout<Superscript>®</Superscript> Early Reading for Children with Autism Spectrum Disorders

Many children with autism spectrum disorder (ASD) require instructional programs that simultaneously address academic content, interfering behavior, and potential gaps in prerequisite skills for a given curriculum. This study examined the impact of an intervention package consisting of contingent reinforcement and match-to-sample training on the independent progression of 3 children with ASD through Headsprout^® Early Reading (HER), a behavior analytic online reading program. A multiple probe across participants design was used to examine the effects of the intervention package on participants’ correct interactions per minute and total episodes completed. Transfer of training to oral reading of companion print books was also assessed. All participants demonstrated an increase in correct interactions per minute. Two participants learned to independently complete a HER episode each day and could orally read companion print books. The results suggest individualized behavior analytic programs can support the use of HER as a computer-based reading program for some children with ASD.     

Teaching social perception skills to adolescents with autism and intellectual disabilities using video‐based group instruction

Few interventions focus on teaching social skills to adolescents with autism spectrum disorder (ASD) and intellectual disabilities (ID) that are consistently used during interactions with peers ( Carter et al., 2014). The present study evaluated the effects of video‐based group instruction (VGI) on the acquisition of social perception skills of five adolescents with ASD or ID in a public school setting. Social perception involves observing affective behaviors of others, discriminating relevant environmental stimuli, and differentially reinforcing the affective behavior of another person. Typically developing peers supported VGI implementation as social partners for participants. A multiple probe design across behaviors demonstrated the effectiveness of VGI for teaching social perception skills. Four of five participants acquired and maintained the targeted social perception skills, and we observed some transfer to a nontreatment setting. Results of this study suggest VGI may support the acquisition of social perception among adolescents with ASD or ID.     

Establishing verbal repertoires in children with autism using function-based video modeling

Previous research suggests that language-training procedures for children with autism might be enhanced following an assessment of conditions that evoke emerging verbal behavior. The present investigation examined a methodology to teach recognizable mands based on environmental variables known to evoke participants' idiosyncratic communicative responses in the natural environment. An alternating treatments design was used during Experiment 1 to identify the variables that were functionally related to gestures emitted by 4 children with autism. Results showed that gestures functioned as requests for attention for 1 participant and as requests for assistance to obtain a preferred item or event for 3 participants. Video modeling was used during Experiment 2 to compare mand acquisition when video sequences were either related or unrelated to the results of the functional analysis. An alternating treatments within multiple probe design showed that participants repeatedly acquired mands during the function-based condition but not during the nonfunction-based condition. In addition, generalization of the response was observed during the former but not the latter condition.