2. Unit 1 Service Delivery

General Goal: Focuses on improving overall communicative performance rather than isolated skills.
Systematic Steps: Assessment → Goal Selection → Treatment → Data Collection → Analysis → Modification.
Levels of Focus: Interventions utilize organizational structures (Ukrainetz, 2015) that range from top-down to bottom-up approaches, depending on assessment and student needs.
Intervention Procedures: Vary from Hierarchical Skill Intervention (one skill, contrived tasks) to Contextualized Skill Intervention (integration of multiple skills in naturalistic activities).

This model outlines critical features across a continuum to support learning:

Repeated Opportunities: Frequent practice within various contexts.
Intensity: Managed through scheduling frequency and duration.
Systematic Support: Scaffolding that evolves based on the learner’s skill level.
Explicit Skill Focus: Clear instruction that can range from implicit modeling to meta-cognitive awareness.

Assessment: Focuses on academic purpose, social belonging, and potential communication breakdowns.
Goal Areas: Includes language (semantics/morphosyntax), metalinguistics, metacognition (self-monitoring), and cognitive processes (word retrieval).
Learning Supports:
- Structural: Task design and environmental modifications.
- Linguistic: Scaffolds that prompt better student responses.
- Regulatory: Behavioral supports to maintain focus.
Implementation: Uses a whole-part-whole approach, blending meaningful activities like narratives with focused practice on discrete skills.

Definition: Sentences containing $\ge 1$ main clause and at least one subordinate clause. This is vital for academic reading, writing, and oral communication.
Finite Clauses: Marked for tense (e.g., nominal, adverbial, relative).
Nonfinite Clauses: No tense marking (e.g., infinitive, participial, gerundive).
Processing Considerations:
- Left-Branching: High cognitive load as the subordinate clause precedes the main clause.
- Right-Branching: Lower cognitive load and generally easier for children with language impairments.
Measurement Metrics:
- C-Units and T-Units: Measures spoken and written syntax, respectively.
- Syntactic Complexity: Evaluated via Mean Length of Unit ( $MLCU/MLTU$ ). Clinicians must identify "maze behavior" (hesitations) to avoid inflating scores.
Clinical Application: For children with Developmental Language Disorder (DLD), interventions should model subordinate clauses and utilize sentence combining within relevant academic contexts.