Assessing the efficacy of pictorial preference assessments for children with developmental disabilities

An Organizational Model for Increasing Access to the Scholarly Literature

Incorporating literature into practice can help behavior analysts provide better services and achieve better outcomes. In addition, behavior analysts have an ethical obligation to remain current with the scholarly literature and to use it to inform services. Despite the merits of maintaining regular contact with the published literature, barriers exist to doing so. In this tutorial, we present a system that was created for a human service agency to increase practitioner access to the scholarly literature. The system consisted of an electronic search request form, a literature team, and a liaison. We present 7 years of data including the frequency of use, topics of interest, and other noteworthy patterns of submitter responding. We discuss the value of this type of system, limitations of its design, and considerations for practitioners who may wish to implement a similar system in their agency. We discuss modifications that could be made to fit organizations of diverse sizes and with different resources, while presenting ideas for improvement and expansion of the system.

Evaluating the effects of social interaction on the results of preference assessments for leisure items

A variable that may influence the outcomes of stimulus preference assessments (SPAs) is whether social interaction is provided during the stimulus access period. In Experiment 1, we compared the outcomes of a Solitary paired stimulus preference assessment (PSPA) (toys only), Social PSPA (toys plus social interaction), and Combined PSPA (toys alone and toys plus social interaction) to determine whether the addition of social interaction influenced preference for toys in preschool children. In Experiment 2, we conducted a concurrent-operant reinforcer assessment to compare the reinforcing efficacy of stimuli with and without social interaction. Experiment 1 showed preference for toys was stable across assessments (Solitary and Social PSPAs) and most participants preferred toys plus social interaction when compared in a single assessment (Combined PSPA). Experiment 2 showed that results of the Combined PSPA in Experiment 1 predicted the outcome of most participants' reinforcer assessments.

Stimulus Preference Assessment Decision-Making System (SPADS): A Decision-Making Model for Practitioners

A stimulus preference assessment (SPA) is a fundamental tool used by practitioners to predict stimuli that function as reinforcers. The Behavior Analyst Certification Board (BACB) requires that all certified behavior analysts and behavioral technicians be trained in SPA methodology (BACB, 2017). SPA procedures are used by nearly 9 out of 10 behavior analysts in the field (Graff & Karsten, 2012). Over the last 4 decades, there has been a litany of research on SPA procedures. Despite the universality of training, application, and research, discussions on the selection of SPA procedures have been sparse. Two peer-reviewed articles have focused on clinical decision making in the selection of SPA procedures. Karsten et al. (2011) introduced an in situ decision-making model, whereas Virues-Ortega et al. (2014) developed an a priori algorithm based on client and stimuli characteristics. The SPADS addresses the limitations of prior models by considering the effects of stimuli dimensions, client characteristics, relative administration times, and the outcomes agreement between two potentially efficacious, context-specfic SPA procedures.

Overcoming Barriers to Applied Research: A Guide for Practitioners

The research-to-practice gap is evident in many disciplines. This gap can be seen through practitioners failing to integrate the latest research findings into their work, and through the implementation of procedures that do not have empirical support. As the number of behavior-analytic practitioners grows, this gap is likely to become more salient. One solution to closing the gap is for practitioners to conduct applied research. This survey study aimed to identify specific barriers that practitioners face when conducting research, to identify how valuable conducting research is to practitioners, and to make recommendations to support research productivity in practice. We report results from survey questions about applied research and provide practical recommendations for practitioners to overcome barriers and to begin conducting research during their clinical work.

Using Pictures Depicting App Icons to Conduct an MSWO Preference Assessment on a Tablet Device

Identifying preferred content on tablet devices may be important when using such devices in programming. This study included six adults with disabilities and examined using laminated picture cards depicting application (app) icons to conduct multiple-stimulus without replacement (MSWO) preference assessments of iPad content. Following identification of preference hierarchies, we conducted reinforcer assessments to validate preference assessment results by demonstrating that selected apps functioned as reinforcers. We identified preference hierarchies for all participants, and the highest preferred app functioned as a reinforcer for a vocational task in five out of six participants' reinforcer assessments.

Assessing preferences of individuals with developmental disabilities using alternative stimulus modalities: A systematic review

The purpose of this systematic review was to identify investigations comparing the efficacy of alternative modality (e.g., pictorial, verbal, video) stimulus preference assessments for individuals with developmental disabilities. We identified articles by searching peer-reviewed journals using the PsycINFO and ERIC databases, conducting table of contents searches of common behavioral outlets, and conducting ancestral searches of recent reviews and practitioner summaries of preference assessment methodology. A total of 32 articles met our inclusion criteria. These studies were then coded across a variety of features to gain a better understanding of the efficacy of alternative format preference assessments for individuals with developmental disabilities. In addition, we reviewed this literature for the use of prerequisite-skill assessments and contingent-reinforcer access to further investigate the relation between these variables and the accuracy of pictorial, verbal, and video preference assessments. A variety of methodological concerns are discussed as well as suggestions for future research.

Further examination of video-based preference assessments without contingent access

The first purpose of this study was to attempt to replicate previous findings that video-based preference assessments without access to selected stimuli may accurately predict relative reinforcing efficacy of stimuli. To do this, we conducted a concurrent operant reinforcer assessment in which we evaluated the relative reinforcing value of highly preferred and less preferred items identified in a video-based preference assessment. The second purpose of this study was to begin to evaluate the potential behavioral mechanisms responsible for the validity of this assessment. To conduct this analysis, we evaluated the relative reinforcing value of those same stimuli depicted in video format and then compared results to results obtained during the reinforcer assessment for tangible stimuli. For all five participants, stimuli identified as highly preferred functioned as reinforcers, and four of five participants, responding during the reinforcer assessment was similar in the presence of tangible stimuli and videos depicting those stimuli.

The effects of preference assessment type on problem behavior

Individuals with intellectual and developmental disabilities who engage in problem behavior maintained by access to tangibles may exhibit more problem behavior during certain preference assessments. We compared three common preference assessments to determine which resulted in fewer problem behaviors. The paired stimulus and multiple-stimulus without replacement assessments produced higher rates of problem behavior than the free operant (FO) assessment, suggesting that the FO assessment may be the most appropriate assessment for individuals who engage in problem behavior maintained by access to tangibles.