Language, cognition & flexible learning
PEAK
Promoting the Emergence of Advanced Knowledge Relational Training System
A criterion-referenced assessment and curriculum system spanning directly trained learning, generalization, stimulus equivalence, and more complex derived relational responding.
Ask about this assessment →A score is a starting point.
Never the whole child.
Directly trained verbal and learning skills
Generalization across examples, people, and settings
Stimulus equivalence and symbolic relations
Understanding before planning
Notice the strengths.
Understand the next step.
PEAK contains four modules: Direct Training, Generalization, Equivalence, and Transformation. Each module includes a direct pre-assessment, a full 184-item skill assessment, and a 184-item curriculum. Direct Training emphasizes foundational verbal and learning skills established through direct contingencies; Generalization examines use across new examples, people, and settings. Equivalence and Transformation address derived relational responding relevant to symbolic language, categorization, comparison, hierarchy, perspective taking, flexible reasoning, and problem solving.
PEAK can help a qualified clinician select curricular targets and monitor performance, but the research base is not equally mature across every module and includes psychometric studies alongside many small-sample and single-case intervention studies. Results should therefore be integrated with direct observation, adaptive and functional information, learner history, and standardized measures when those are clinically indicated. A PEAK score is not, by itself, an estimate of intelligence, a diagnosis, or a complete language or adaptive profile.
We look beyond isolated scores to the child's engagement, strategy, communication, and response to support throughout the assessment.
What this assessment explores
Different skills.
One individual profile.
Directly trained verbal and learning skills
Generalization across examples, people, and settings
Stimulus equivalence and symbolic relations
Comparison, hierarchy, and perspective taking
Flexible reasoning and problem solving
From observation to direction
Careful enough to be useful.
Human enough to be true.
- 01Listen
We begin with history, current priorities, and the situations that matter in everyday life.
- 02Observe
The clinician engages the child directly through selected tasks and natural interaction.
- 03Interpret
Patterns, strengths, barriers, and context are considered—not a score in isolation.
- 04Translate
Findings become clear, practical priorities for an individualized support plan.
not a label.
What the results support
A thoughtful starting point for action.
The outcome is a module-specific profile that helps select teachable targets across direct learning, generalization, equivalence, and transformation. The report should distinguish demonstrated performance from emerging or untested skills and explain the limits of interpretation alongside practical next steps.
Talk with us about assessment →Clinical care matters. Assessment selection and interpretation must be completed by a qualified professional and considered alongside direct observation, individual history, information from relevant professionals, and family priorities. No single tool defines or diagnoses the whole child.
Understanding can change the next step.
