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Southern Illinois University

PEAK FOR IBI: EXAMINATION OF THE UTILITY OF THE PEAK RELATIONAL TRAINING SYSTEM FOR INTENSIVE BEHAVIORAL INTERVENTION

Abstract

dc:description.abstract

The current set of experiments examined the utility of implementing the Promoting the Emergence of Advanced Knowledge (PEAK) Relational Training System (Dixon, 2014a, 2014b), an empirically validated assessment and intervention guide developed for children diagnosed with autism spectrum disorder (ASD), within Intensive Behavioral Intervention (IBI). Experiment 1 examined the relationship between scores on the commonly used Vineland Adaptive Behavior Scales Second Edition (VABS-II) (Sparrow, Cicchetto, & Balla, 2005) and scores on the PEAK Direct Training (PEAK-DT) (Dixon, 2014a) and PEAK Generalization (PEAK-G) (Dixon, 2014b) program assessments to examine additional psychometric properties suggesting the potential utility for use within IBI services. Experiment 2 examined the extent to which the PEAK manual (Dixon, 2014b) or additional staff training increased PEAK discrete trial training (DTT) procedural integrity of staff providing IBI to children diagnosed with ASD. Experiment 3 examined the effects of PEAK-G curriculum and instruction on the advanced language skills of children with ASD receiving IBI services. Results suggest that PEAK may be a valid assessment tool and effective intervention guide for use in IBI. Also, the manual and other effective staff training procedures (e.g., feedback, behavioral skills training) effectively enhance PEAK-G DTT procedural integrity. Lastly, the set of experiments in the current paper contributes to the dissemination of empirically based, behavior-analytic research that contributes to practical assessments and advanced interventions for children diagnosed with ASD. Specifically, PEAK-G enhances the language repertoires of children diagnosed with ASD through direct contingencies and programming for generalization across generalization gradients.

Degree

thesis:*
Name thesis:degree_name
Doctor of Philosophy
Level thesis:degree_level
Campus Only Dissertation
Discipline thesis:degree_discipline
Rehabilitation
Year
2016

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Dunkel-Jackson, Sarah Marie
Contributors dc:contributor
  • Dixon, Mark

Subjects

dc:subject × 4

Identifiers

dc:identifier.*
Repository record dc:identifier
https://opensiuc.lib.siu.edu/dissertations/1306
OAI identifier oai:identifier
oai:opensiuc.lib.siu.edu:dissertations-2310

Chain of custody

source
Harvested from
Southern Illinois University
Base URL
opensiuc.lib.siu.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Dunkel-Jackson, Sarah Marie. PEAK FOR IBI: EXAMINATION OF THE UTILITY OF THE PEAK RELATIONAL TRAINING SYSTEM FOR INTENSIVE BEHAVIORAL INTERVENTION. Campus Only Dissertation thesis, 2016. https://opensiuc.lib.siu.edu/dissertations/1306