Stability of preference and reinforcing efficacy of edible, leisure, and social attention stimuli.

Behavior analysts have developed an extensive technology of assessing preferences, but little research has evaluated the extent to which preferences change over time. In this study, monthly paired-stimulus edible, leisure, and social preference assessments and bimonthly reinforcer assessments were conducted over a 1-year period with 4 individuals with developmental disabilities. Across participants, short-term (i.

Increasing the efficiency of paired-stimulus preference assessments by identifying categories of preference.

A paired-stimulus preference assessment was conducted for 6 individuals with developmental disabilities. We selected stimuli that were representatives of 4 categories: chocolate, salty and crunchy, gummy, and fruit and vegetable. For all 6 participants, at least 3 of the 5 most preferred items came from the same category.

Evaluation of a self-instruction package for conducting stimulus preference assessments.

Research suggests that inexperienced individuals cannot accurately implement stimulus preference assessments given written instructions alone. Training that includes written instructions supplemented with feedback from a professional with expertise in conducting preference assessments has proven effective; unfortunately, expert-facilitated direct training may not be widely available. In the current study, we used multiple baseline designs to evaluate the efficacy of an antecedent-only self-instructional package to train staff members to implement two methods of stimulus preference assessments.

Assessing preferences of individuals with developmental disabilities: a survey of current practices.

Although professionals working with individuals with developmental disabilities have much to gain from using systematic methods of reinforcer identification, practitioner knowledge and use of stimulus preference assessments (SPA) has rarely been examined. The purpose of this survey was to assess awareness and implementation of SPAs among professionals who serve people with developmental disabilities within and outside the field of applied behavior analysis. A total of 406 individuals responded to the survey; 246 respondents were recruited via direct email, and 160 respondents were recruited from Internet postings.

The impact of high- and low-preference stimuli on vocational and academic performances of youths with severe disabilities.

Pictorial and tangible paired-stimulus preference assessments were compared with 4 adolescents with developmental disabilities. In the tangible assessment, two stimuli were placed in front of the participant on each trial; in the pictorial assessment, two line drawings were placed in front of the participant on each trial. Approach responses were recorded for each assessment.

Assessing object-to-picture and picture-to-object matching as prerequisite skills for pictorial preference assessments.

Tangible and pictorial paired-stimulus (PPS) preference assessments were compared for 6 individuals with developmental disabilities. During tangible and PPS assessments, two edible items or photographs were presented on each trial, respectively, and approach responses were recorded. Both assessments yielded similar preference hierarchies for 3 participants who could match pictures and objects but different hierarchies for 3 participants who could not.

Two methods for teaching simple visual discriminations to learners with severe disabilities.

Simple discriminations are involved in many functional skills; additionally, they are components of conditional discriminations (identity and arbitrary matching-to-sample), which are involved in a wide array of other important performances. Many individuals with severe disabilities have difficulty acquiring simple discriminations with standard training procedures, such as differential reinforcement. Errorless training methods may be more effective with this population.

Using pictures to assess reinforcers in individuals with developmental disabilities.

Tangible preference assessments were compared with pictorial preference assessments for 4 individuals with developmental disabilities. In the tangible assessment, on each trial two stimuli were selected and placed in front of the participant, who approached one. In the pictorial assessment, on each trial two line drawings were placed in front of the participant, who pointed to one.