In an organism's natural environment, there are always an uncountable number of stimuli, and stimulus features, available to gain control over behavior. When these component stimuli are presented simultaneously, this new stimulus compound can occasion a previously unseen effect on behavior. Stimulus compounding is a method used to better understand how variables in stimulus features may impact the final effect on an organism's responding when presented with a stimulus compound. While stimulus compounding experiments are often conducted using intermodal tone and light stimuli, it is conducted far less often using intramodal stimuli, potentially due to the competing stimulus features of same-modality stimuli. Even less conducted research has been done using two odor component stimuli, despite the large impact odor has on many species' behavior. The purpose of this study was to conduct a stimulus compounding experiment using intramodal ambient odor stimuli in rats, to see what kind of effect a mixed odor compound would have on the subject's behavior. This was done using a wind tunnel designed operant chamber, where both subjects were trained to respond to independently presented odor stimuli. Following training a compound mixture of both component odors was presented to the subjects. The results of this study …

People with intellectual disabilities (ID) face a high risk of experiencing adverse events including abuse, neglect, and serious medical issues. Access to effective interventions for people with moderate to severe ID is limited because of communication deficits that are characteristic of this population. Some of the negative effects of exposure to trauma for people with ID can include increases in problem behaviors. Behavior analysts have developed robust assessments and treatments to address these problem behaviors for people with ID; however, when these behaviors arise after a traumatic event, specialized assessments may be necessary to ensure effective treatment and decreased risk of re-traumatization. Specifically, if trauma-related stimuli (TRS) differentially affect preferences and functions of behavior, assessments of the effects of these stimuli may be critical to mitigate those effects. In my first experiment I found that TRS differentially affected behavior (including heartrate) during preferences assessments. In my second experiment I found that TRS differentially affected heartrate and the function of problem behavior for two of three participants. I discuss implications of these findings, including 1) that measuring some of the physiological effects of TRS using commercially available heart rate monitors could improve behavior analytic assessments for people with potential trauma histories; …

Human operant studies frequently use points exchangeable for money as reinforcers. Some studies employ more immediately consumable reinforcers to emulate properties of food reinforcers. This study examined demand for points/money and for sound-clips to compare their economic characteristics. Across four participants, demand was often higher and less elastic for points/money than for sounds. During subsequent exposures at each response requirement, demand for sounds often decreased to a greater degree than demand for points/money. Thus, sound-clips seem less durable than points/money across prices and across repeated exposure to the same price. Response rates for points/money were often higher than for sounds, suggesting that reinforcers that generate higher response rates may be less elastic than reinforcers that generate lower response rates.

The measurement of happiness has received increasing attention in behavior analytic literature. Happiness in individuals with developmental disabilities has been assessed by 1) counting a specific behavior, or 2) sampling constellations of behaviors. The purpose of this study was to examine the two approaches while observing nine child and teacher dyads at an autism treatment center. Results showed that, overall, a constellation of behaviors can yield similar patterns when compared to a specific behavior count. However, the affect of one person did not predict the affect of the other and similar instructional conditions did not predict affect either. The implications of these results and future directions are discussed.

Using a multiple baseline across participants with a changing criterion, this study explored and evaluated the effects of the individualized contingency management package (goal-setting, education, etc.) with sedentary typical adults while focusing on the mentoring component and the use of the technology of the exercise tracker to increase and sustain physical exercise to a level that increased health-benefiting physical activity. During initial mentoring meeting prior to the start of baseline, each participant was given a Garmin Viovsmart 3® exercise tracker, educated on the basic components of the device, and connected to the dashboard through the Garmin Connect™ app on their smartphones. Once each participant's activity stabilized, participant began intervention with weekly mentoring meetings focused on immediate feedback (social reinforcement), goal-setting and education. Through the Connect™ app, experimenter gave social reinforcement on a VR3 schedule to each participant, and participants were encouraged to participate by commenting to other participants through a private group set up for this study. The results indicate that the individualized contingency management package was effective for three of four participants whom increased their total activity minutes from pre-intervention range 0-104 min of weekly activity to post-intervention range of 269-404 min weekly. The two participants that completed two- …

Evidence-based practice in ABA is a complex decision-making process involving frequent adjustments in goals and procedures as informed by science, client need, and clinical wisdom. Consistent with the science's foundations, incredible gains are possible for children with autism when practitioners are systematically trained to understand, produce, and be responsive to shifting conditions for change. However, minimal standards for training promote inflexibility and rule following, at the expense of frequent and responsive adjustments. Although research has demonstrated that well-trained staff can effectively implement flexible procedures using in-the-moment assessment and clinical judgment, minimal research has targeted and evaluated the development of these repertoires. Therefore, the purpose of this study was to evaluate the effects of a staff training package, including an in-service training and in vivo training sessions, on staffs' ability to make responsive, goal-directed, and rationale-based decisions directed towards accelerating progress with vocal manding for children with autism. The evaluation was the second part of the larger Change AGENT Project. Results suggested the training was effective at producing socially validated progress across staff and child measures. In essence, the trainer, staff, and child acted as change agents for one another's behavior within the flexible paradigm. Implications, limitations, and future directions are …

When autism interventionists within behavioral intervention programs continually assess the child's behavior and context and adjust their teaching behaviors accordingly, the child can quickly progress towards their goals. While evaluations of flexible behavior-change techniques implemented by experienced clinicians are present in the literature, systematic evaluations of staff training procedures to train interventionists in responsive decision making are lacking. In the current study, flexible training procedures were utilized to not only teach direct-line staff to make decisions based on the learner's behavior, but also to understand and articulate the variables they were responding to. During in vivo training sessions, trainers tailored their use of instructions, modeling, practice, feedback, narration modeling and shaping, and decision-making guidance to the dynamic needs of the staff and child. The effects of the treatment package, which consisted of an in-service training and in vivo training sessions, were measured by observing staff teach vocal manding, which was chosen based on the importance of the skill for the child and because it afforded many opportunities for the staff to learn to make decisions about how to occasion and shape responses. The three children with autism who participated in the study made progress in terms of increasing their frequency …

Despite the positive outcomes for inquiry-based science education and recommendations from national and state standards, many teachers continue to rely upon more traditional methods of instruction This causal-comparative study was designed to determine the effects of the Inquiry Institute, a professional development program that is intended to strengthen science teachers' pedagogical knowledge and provide practice with inquiry methods based from a constructivist approach. This study will provide a understanding of a cause and effect relationship within three levels of the independent variable-length of participation in the Inquiry Institute (zero, three, or six days)-to determine whether or not the three groups differ on the dependent variables-beliefs, implementation, and barriers. Quantitative data were collected with the Science Inquiry Survey, a researcher-developed instrument designed to also ascertain qualitative information with the use of open-ended survey items. One-way ANOVAs were applied to the data to test for a significant difference in the means of the three groups. The findings of this study indicate that lengthier professional development in the Inquiry Institute holds the most benefits for the participants.