The present investigation examined observational learning during equivalence-based instruction using the PEAK Equivalence curriculum, across five children with disabilities. A multiple baseline across skills was used to evaluate observational learning across the participants, including directly observed relations, as well as derived symmetrical and transitive relations. Each skill contained 5 stimulus classes, where a subset of relations for a single class was trained for each participant. The remaining 4 class subsets were observed by each of the participants. For the derived relations, participants never observed peers contact reinforcement for correct responding nor did they themselves contact reinforcement for correct responding. After multiple sessions, results indicated increases in both observed directly trained relations, as well as emergent derived relations. Over the course of the sessions, the participants average correct answers increased from an average of 12% during baseline to100% at the end of the training phase and during a follow-up test probe. The results have implications for equivalence-based ABA instruction in schools and other settings where group-based instruction is common in application with individuals with disabilities.

The present study evaluated the effectiveness of stimulus equivalence procedures using the instructional protocols from the PEAK-E curriculum to develop the emergence of cause and effect relational responding in two children with autism. The procedures were taken from the PEAK-E program Transitivity: Multiple Actions & Outcomes-9p to aid in clinical replication. This study utilized a multiple baseline design across participants to evaluate the functional relationship between cause and effect relations. The results suggested that direct training of an action (A) to an outcome (B) (A-B) and direct training of an outcome (B) with an action that is produced by the outcome (C) (B-C) was effective for both participants. Following A-B and B-C training, the participants demonstrated emergent relations and untrained action (A) to action (C) relations which are consistent with transitivity. The results demonstrate efficacy of stimulus equivalence procedures for training cause and effect skills as well as the PEAK-E curriculum

This study sought to evaluate the efficiency of the methods outlined in the Promoting the Emergence of Advanced Knowledge Relational Training System Equivalence Module (PEAK-E) utilizing a single-subject design. Three participants from a Midwest town were recruited to participate in the study and were assessed and validity, reliability, and efficacy were evaluated to determine the assessments ability to identify three language skills that weren’t currently present in their repertoire. Baseline levels determined that the 3 skills for each participant (a total of 9 skills across the 3 participants) were not currently present in their repertoire prior to implementation of PEAK-E programs, as the participants demonstrated low levels of correct responding. Upon completion of program implementation across all three participants with autism, mastery criteria was obtained for all directly trained skills, and relations were derived for 9 out of 9 programs.

Individuals with autism are largely taught using direct contingency learning, limiting their already potentially limited relational repertoire. A multiple baseline design across skills with an embedded multiple probe design was implemented to demonstrate the efficacy of training procedures used to established nonarbitrary relations in the context of block design. The PEAK – Transformation module (PEAK-T) is a curriculum designed to develop the relational repertoire of individuals with and without developmental disabilities, from which procedures were adapted. Training phases were each preceded by test probes of each of the target relations. Transfers of stimulus function were tested by presenting a novel context in which the trained and derived relations were used in completion of a task. The entailment probes across each of the programs showed transfers of function across three relational stimulus classes. All three directly trained relations across three frames resulted in mastery level responding. The results support the efficacy of the PEAK-T curriculum such that complex relational responding can be taught to a child with intellectual disabilities.

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