PEAK Pre-Assessments: Preliminary Evidence Establishing Internal Consistency and Construct Validity.

Authors :: May BK
Flake L
Source :: Behavior analysis in practice [Behav Anal Pract] 2019 Jan 14; Vol. 12 (3), pp. 627-631. Date of Electronic Publication: 2019 Jan 14 (Print Publication: 2019).
Publication Year :: 2019
Abstract: Promoting the Emergence of Advanced Knowledge (PEAK) is a behavior-analytic tool that assesses and teaches language and cognitive abilities. PEAK preassessment total scores showed statistically significant correlations with measures of intelligence ( r = .703, p = .023) and adaptive behavior ( r = .618, p = .018), whereas no significant correlations were found between PEAK and age, autism diagnostic instruments, or aggression scales in a sample ( N = 18) receiving behavior-analytic assessment in an autism clinic. Statistically significant correlations were found between all modules within the PEAK system ( p ≤ .001). Results provide preliminary evidence of the construct validity and internal consistency of the PEAK preassessments.<br />Competing Interests: Conflict of InterestAll authors declare they have no conflicts of interest.<br /> (© Association for Behavior Analysis International 2019.)

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