How to Do Things With Texts: A Functional Account of Reading Comprehension.

We offer an account of reading comprehension that we believe will help clarify some common conceptual confusions in the relevant literature, as well as contribute to existing functional accounts. We argue that defining texts qua texts as stimulus classes, on the one hand, and equating "comprehension" with behavior (covert or otherwise), on the other, are not useful conceptual moves, especially when behavioral settings go beyond basic literacy skills acquisition. We then analyze the structure of the contingencies that usually evoke talk of "comprehension" using techniques from analytic philosophy. We show how keeping the results of this analysis in mind can help avoid the conceptual bafflement that often arises, even among behavior analysts, when defining or assessing behavioral phenomena related to reading comprehension. Using two contrasting cases (legal texts and stories), we argue that what counts as comprehension depends, not peripherally but crucially, on the shared social practices of which texts are a part. Finally, we propose a new framework for classifying reader-text contingencies by combining two dimensions: openness of setting and embeddedness of reinforcement.

Dialogic reading: effects on independent verbal responses, verbal and non-verbal initiations, and engagement of children with autism spectrum disorder

Dialogic reading (DR) is the shared reading of storybooks, interspersed with dialogues about story and illustrations. Previous findings have indicated that DR can be adapted for children with autism spectrum disorder (ASD) and can improve their engagement in shared reading activities. The present study aimed to investigate how DR with a verbal prompting hierarchy impacted the performance of children with ASD engaged in dialogue about the story. We also measured effects on verbal and non-verbal initiations and on task engagement. We used a single-subject design to test a DR adaptation involving a least-to-most prompting hierarchy with two 7-year-old children with ASD and evaluated the effects on independent verbal responses to questions about the story, verbal and non-verbal initiations, and task engagement. The participants showed an increase of independent verbal answers to WH (Who, What, Where, What) questions about the story, and to the more general "What is happening here?" (WIHH) question. One child showed an increase in verbal initiations. Both children showed high task engagement independently of condition, but with less variability when reading was dialogic. The results of this study support the use of story-based open questions and least-to-most prompting verbal hierarchies for helping children with ASD engage in conversation about the story in shared reading settings

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Evaluating the use of programmed reinforcement in a correction procedure with children diagnosed with autism.

BACKGROUND: Procedures that reduce errors while learning a repertoire play an important role in Applied Behavior Analysis for people with autism due to the detrimental effects that excessive exposure to error may have on learning. Previous studies have investigated the effects of correction procedures that require active student response after a trial with error. Some intervention manuals recommend against reinforcing responses after correction to prevent the establishment of prompt dependence. This study directly investigated the effect of reinforcement after an active-response correction procedure during tact training in four children with autism. An echoic-to-tact training procedure was used to train tacts. A "no reinforcement after correction" (NRC) condition was compared to a "reinforcement after correction" (RC) condition, using an adapted alternated treatments design. RESULTS: All participants needed less correction trials in RC than in NRC, and considering all 26 sessions in which both training procedures were implemented, participants' performance was higher with RC than without in 17 sessions and was the same in 3 sessions. CONCLUSIONS: We discuss the effectiveness of reinforcing correct responding after an active-response correction procedure, the absence of prompt dependence, and the implications of better correction procedures for applied settings.

Functional class formation in the context of a foraging task in capuchin monkeys.

Functional class formation via repeated reversals of simple discriminations was investigated in a foraging task in captive capuchin monkeys (Cebus cf. apella). Two capuchin monkeys were given simultaneous simple discrimination training and reversals with two (Phase 1), four (Phase 2), and six (Phase 3) visual stimuli (wooden boxes) in the context of searching for food in an apparatus. One different kind of food for each potential stimulus class was used as a reinforcer. After repeated functional reversals of two stimulus sets, multiple tests for functional class formation were performed (Phase 4). Evidence of class formation was found in all of the tests. Next, the same monkeys were given simultaneous simple discrimination training with variations of the stimulus locations between sessions (Phase 5). The class-specific reinforcement procedure was suspended. Tests for functional class formation were again performed. Evidence of class formation was found in all tests. The data suggest that some of the procedural difficulties in documenting class formation in nonhumans can be overcome with procedures that take advantage of the natural skills of the subjects.

Matching-to-sample as a model of symbolic behavior for bio-behavioral investigations.

This paper discusses the use of matching-to-sample as a procedure to investigate symbolic behavior acquisition when studying the evolution of language. It is argued that generalized identity and stimulus classes formed after learning arbitrary interconnected conditional stimulus relationships may be the result of basic pre-symbolic processes. Such aspects may thus provide relevant information for interdisciplinary research on symbolic behavior and language evolution. An individualized approach when building matching-to-sample repertoires - different from that of traditional training - is described. As an example, the results of a generalized identity matching-to-sample procedure held with an experienced capuchin monkey are presented.