Teaching children with autism spectrum disorder to tact olfactory stimuli

Research on tact acquisition by children with autism spectrum disorder (ASD) has often focused on teaching participants to tact visual stimuli. It is important to evaluate procedures for teaching tacts of nonvisual stimuli (e.g., olfactory, tactile). The purpose of the current study was to extend the literature on secondary target instruction and tact training by evaluating the effects of a discrete‐trial instruction procedure involving (a) echoic prompts, a constant prompt delay, and error correction for primary targets; (b) inclusion of secondary target stimuli in the consequent portion of learning trials; and (c) multiple exemplar training on the acquisition of item tacts of olfactory stimuli, emergence of category tacts of olfactory stimuli, generalization of category tacts, and emergence of category matching, with three children diagnosed with ASD. Results showed that all participants learned the item and category tacts following teaching, participants demonstrated generalization across category tacts, and category matching emerged for all participants.     

Comparing Continuous and Discontinuous Data Collection during Discrete Trial Teaching of Tacting by Children with Autism

The present study compared continuous and discontinuous data collection systems on acquisition, generalization, and maintenance of tacts, and on‐task behavior, during discrete trial teaching with three children with autism. A constant prompt‐delay procedure was used to teach tacts. Performance across data collection systems was compared using continuous measurement collected daily in the presence of teaching, discontinuous measurement of the first trial only, and discontinuous measurement collected weekly in the absence of teaching (i.e., probe data). An adapted alternating treatments design was used. For two of the three participants, tacts were acquired most rapidly in the continuous measurement condition, although the differences were small. For the third participant, no systematic differences were found in skill acquisition across the three data collection systems. For all three participants, minimal to no differences were found across data collection systems with regard to generalization and maintenance of tacting, and on‐task behavior. Additionally, procedural integrity was high and comparable across all data collection procedures. Overall, these results suggest the use of continuous data collection for teaching tacts to children with autism, as it provides the most sensitive measure of change in performance. Copyright © 2016 John Wiley & Sons, Ltd.     

Teaching children with autism to tell socially appropriate lies

This study used a nonconcurrent multiple baseline across participants design to evaluate the use of rules, role‐play, and feedback for teaching 3 children with autism spectrum disorder to tell socially appropriate lies when (a) presented with an undesired gift and (b) someone's appearance changed in an undesired way. The intervention was effective in teaching use of socially appropriate lies, and generalization to untrained people and gifts or appearances was observed.     

Teaching a perspective‐taking component skill to children with autism in the natural environment

We evaluated procedures for teaching three children diagnosed with autism spectrum disorder the perspective‐taking component skill of tacting what others are sensing across all five senses: see, taste, feel, hear, and smell. Using a multiple baseline across participants design, we evaluated a training package consisting of multiple exemplar training, reinforcement, and error correction. The treatment package was implemented in the natural environment and was effective for teaching participants to tact what others sensed. Generalization across untrained stimuli and people was observed from baseline to posttraining for all participants. We discuss how this component skill may be related to teaching further skills related to perspective taking such as tacting what others know, predicting future behavior based upon one's beliefs, and creating false beliefs in others for the purpose of adaptive deceptive behaviors such as keeping secrets, surprises, and bluffing during games.     

A comparison of teaching tacts with and without background stimuli on acquisition and generality

We evaluated whether teaching tacts of images with or without backgrounds would affect acquisition during teaching and generality across untaught targets with four children diagnosed with autism spectrum disorder. Including backgrounds could slow acquisition but bolster generality across other media containing backgrounds, whereas removing backgrounds may improve acquisition but result in poorer generality. Overall, acquisition rates were similar across conditions for three children, although one child displayed consistently slower acquisition during the background condition. We rarely observed generality to untaught targets when programming extinction, but embedding differential reinforcement or teaching additional images with backgrounds led to equally successful outcomes irrespective of initial teaching conditions. Teaching with or without backgrounds may result in marginal differences in acquisition of teaching and untaught targets, especially when arranging supplemental procedures during tests for generality. We discuss the importance of intrasubject replication, considerations when testing for generality, and implications for practice.     

Introspection on uncertainty and judicious help‐seeking during the preschool years

Little is known about the mechanisms underlying a ubiquitous behavior in preschoolers, help‐seeking. We tested the hypothesis that preschoolers' awareness of their own uncertainty is associated with help‐seeking. Three‐, 4‐, and 5‐year‐olds (N = 125) completed a perceptual identification task twice: once independently and once when they could request help from a confederate whose competence level was manipulated. Consistent with our hypothesis, participants sought help more frequently on trials for which, when required to answer independently, they expressed lower confidence. Children in the bad‐helper condition were slower to respond after receiving help than those in the good‐helper condition. Finally, females and children with more advanced theory of mind were more likely to seek help, identifying additional factors that relate to help‐seeking.     

THE INFLUENCE OF MOTIVATING OPERATIONS ON GENERALIZATION PROBES OF SPECIFIC MANDS BY CHILDREN WITH AUTISM

We investigated the influence of motivating operations on the generalization of newly taught mands across settings and communication partners for 3 children with autism. Two conditions were implemented prior to generalization probes. In the first condition, participants were given access to a preferred item until they rejected the item (i.e., abolishing operation). In the second condition, the item was not available to participants prior to generalization probes (i.e., establishing operation). The effects of these conditions on the generalization of newly taught mands were evaluated in a multielement design. Results indicated differentiated responding during generalization probes in which more manding with the target mand was observed following the presession no‐access condition than in the presession access condition. These results support the consideration of motivating operations when assessing generalization of target mands to various untrained contexts.     

Using modeling and rehearsal to teach fire safety to children with autism

We evaluated the efficacy of an instructional procedure to teach young children with autism to evacuate settings and notify an adult during a fire alarm. A multiple baseline design across children showed that an intervention that included modeling, rehearsal, and praise was effective in teaching fire safety skills. Safety skills generalized to novel settings and maintained during a 5‐week follow‐up in both training and generalization settings.     

Generalization of equivalence relations from photos to objects by preschool children

Generalized equivalence classes are stimulus classes that consist of equivalent stimuli and other physically similar class‐member stimuli. The present study evaluated whether preschool children would form equivalence classes among photos of abstract objects (2D) and show equivalence generalization to the corresponding objects (3D), printed photos (2D stimuli), and to black‐and‐white drawn pictures (2D stimuli). Six typically developing children were taught arbitrary relations to establish three 3‐member equivalence classes with 2D stimuli presented on a computer screen. AB‐AC baseline relations (for half of the participants) and AB‐BC relations (for the other half) were taught using a multiple‐probe design to assess taught and tested relations. After class formation, three types of generalization probes were conducted: generalization to 3D stimuli, generalization between 2D (printed photos) and 3D stimuli, and generalization to drawn pictures (2D). All of the participants formed the equivalence classes. Two participants met the criterion for all three generalization probe types. Two participants presented mixed results across tests, and two participants did not exhibit equivalence generalization. The results demonstrated equivalence generalization from 2D to 3D stimuli in preschool children, although the variability across participants suggests that such generalization cannot be assumed a priori.     

An evaluation of estimation data collection to trial‐by trial data collection during discrete trial teaching

There are many data collection procedures used during discrete trial teaching including first‐trial data collection, probe data, trial‐by‐trial data collection, and estimation data. Continuous, or trial‐by‐trial data collection, consists of the interventionist collecting data on learner behavior on each trial. Estimation data consists of the interventionist estimating learner performance after a teaching session using a rating scale. The purpose of the present study was to compare trial‐by‐trial data collection to estimation data collection during discrete trial teaching to teach children expressive labels. The data collection procedures were examined in terms of accuracy of data collection, efficiency of teaching (i.e., number of trials delivered per session), and rate of child acquisition of targets. Results of the adapted alternating treatment design replicated across three participants and multiple targets found estimation data collection to be as accurate as trial‐by‐trial data collection in determining mastery of targets. Estimation data collected by the interventionist was also found to be accurate when compared to the actual trial‐by‐trial data collected after the study concluded.     

Teaching Joint Attention to Children with Autism Through A Sibling‐Mediated Behavioral Intervention

Joint attention is pivotal to the development of complex social skills and language, and many individuals with Autism Spectrum Disorders display deficits in this domain. Behavioral interventions targeting joint attention are evidenced to be effective in teaching these skills to young children with autism, but these treatments have traditionally been implemented by adults in structured settings. Concerns regarding the generalizability of skills acquired under such conditions have been raised. Four typically developing children were trained to implement a joint attention intervention to their siblings with autism in the home. Joint attention was measured pre‐treatment and post‐treatment during play sessions and during a structured, adult‐mediated assessment to evaluate maintenance and generalization. Gains in responding to joint attention were observed for all four participants; gains in initiations were observed in three participants. Rates of imitation and behavioral requests also increased in structured and naturalistic settings. This study supports the efficacy of siblings as interventionists to target complex social skills in the natural environment. The implications of these findings for treatments targeting joint attention and for siblings as interventionists are discussed. Copyright © 2011 John Wiley & Sons, Ltd.     

A comparison of a modified sequential oral sensory approach to an applied behavior‐analytic approach in the treatment of food selectivity in children with autism spectrum disorder

Treatments of pediatric feeding disorders based on applied behavior analysis (ABA) have the most empirical support in the research literature (Volkert & Piazza, 2012); however, professionals often recommend, and caregivers often use, treatments that have limited empirical support. In the current investigation, we compared a modified sequential oral sensory approach (M‐SOS; Benson, Parke, Gannon, & Muñoz, 2013) to an ABA approach for the treatment of the food selectivity of 6 children with autism. We randomly assigned 3 children to ABA and 3 children to M‐SOS and compared the effects of treatment in a multiple baseline design across novel, healthy target foods. We used a multielement design to assess treatment generalization. Consumption of target foods increased for children who received ABA, but not for children who received M‐SOS. We subsequently implemented ABA with the children for whom M‐SOS was not effective and observed a potential treatment generalization effect during ABA when M‐SOS preceded ABA.     

Establishing a generalized repertoire of helping behavior in children with autism

The present study used a multiple baseline across participants design to assess whether 4 children with autism could learn a generalized repertoire of helping adults with different tasks through the use of a multicomponent teaching package. Different helping responses were taught in the presence of multiple exemplars of discriminative stimuli drawn from experimenter-defined categories of helping behavior (e.g., locating objects, putting away items, setting up an activity). During the training condition, video models, prompting, and reinforcement were used. The results showed that all 4 children learned to emit appropriate helping responses in the presence of discriminative stimuli from the helping categories used during training. Generalization of helping responses was observed in the presence of untrained discriminative stimuli during additional probe conditions. Additional pre- and postintervention generalization trials showed that the frequency of helping responses also increased in the presence of novel stimuli, in a novel setting, and with a novel instructor.     

Teaching children with autism to tact private events based on public accompaniments

We evaluated a method for teaching children with autism spectrum disorder to respond to tactile stimulation of multiple body parts. Various objects (e.g., hairbrush) produced the sensations (e.g., prickly). In a multiple baseline design across participants, participants learned 9 sensation body part tacts and the evaluation concluded with tests of generalization to 3 novel body parts, 6 novel objects, and 3 novel sensations. Participants demonstrated generalization to novel objects, and to a lesser extent, novel body parts, but did not generalize tacts to novel sensations. These findings are discussed in terms of implications for teaching children with autism to tact sensations.     

The use of matrix training to promote generative language with children with autism

Matrix training consists of planning instruction by arranging components of desired skills across 2 axes. After training with diagonal targets that each combine 2 unique skill components, responses to nondiagonal targets, consisting of novel combinations of the components, may emerge. A multiple‐probe design across participants was used to evaluate matrix training with known nouns (e.g., cat) and verbs (e.g., jumping) with 5 children with autism spectrum disorders (ASD). Following baseline of Matrix 1 and a generalization matrix, diagonal targets within Matrix 1 were trained as noun–verb combinations (e.g., cat jumping). Posttests showed recombinative generalization within Matrix 1 and the generalization matrix for 4 participants. For 1 participant, diagonal training across multiple matrices was provided until correct responding was observed in the generalization matrix. Results support the use of matrix training to promote untrained responses for learners with ASD and offer a systematic way to evaluate the extent of generalization within and across matrices.     

Mands for information generalize across establishing operations

The current study extends the literature on teaching mands for information by assessing whether mands generalize across different establishing operations (EOs). Three children with autism were taught to perform multiple behavior chains, 3 of which included a common response (e.g., “Where is the spoon?”) used for different purposes. An interrupted-behavior-chain procedure was used to contrive the EO for each mand. After teaching a mand for information under 1 EO, the remaining chains were interrupted to determine whether the mand had generalized to different EOs. For all participants, mands for information generalized across EOs. For 2 participants, a new mand-for-information topography emerged after training.     

Generalization between receptive and expressive language in young children with autism

Generalization between expressive and receptive language was studied in six boys with autism (chronological age 47–76 months, language age 13–42 months). Each participant received training on three or four word pairs (e.g. hot/cold). Half the pairs were taught expressively and then receptively; the other half were taught in the reverse order. Data were obtained on generalization from the trained to untrained modality, generalization errors, and between‐ and within‐subject differences. Across participants, the ‘expressive first’ condition led to cross‐modal generalization more often than the ‘receptive first’ condition. However, one child displayed the opposite pattern, and three other children's patterns varied across training stimuli. Error analyses indicated that, when children failed to demonstrate receptive‐to‐expressive generalization, they did generalize in another manner: responding based on physical resemblance between cues used in the study and those used in previous training. The results suggest ways to individualize instruction and better understand cross‐modal generalization. Copyright © 2003 John Wiley & Sons, Ltd.