Full Goal

Given imitation tasks progressing to elicited single-word production with picture or object referent, [Student] will produce two-element initial /s/-clusters (/sp/, /st/, /sk/, /sm/, /sn/, /sl/) maintaining both consonants with 70% accuracy on trained items and emergent production (≥10% accuracy with no prior training) on at least one untrained simpler singleton or cluster, as measured by SLP transcription of probe items, with generalization probes administered weekly to untrained simpler targets.

Individualization Guidance

Before using this goal, verify:

• Why complexity, and why this target. The complexity approach (Gierut, Storkel) selects targets that are more complex than what the child can produce on the prediction that mastery generalizes downward through the implicational hierarchy. /s/-clusters with a sonority distance of +5 to +7 (e.g., /sl/, /sm/, /sn/) have produced the broadest system-wide generalization in published studies. Pick a cluster the child can NOT produce and is NOT stimulable for — that’s the point.
• Phonological inventory analysis first. Document what consonants the child has, what they’re missing, and what processes are operating. Without this, target selection becomes guesswork and the generalization rationale dissolves.
• Generalization probes are non-negotiable. This is the entire mechanism of the approach. Weekly probes on untrained simpler targets (singletons, two-element clusters of lower complexity, late-acquired sounds in singletons) document whether the system is reorganizing. No generalization data = no complexity approach.
• Severity matters. Complexity is best documented in children with moderate-to-severe phonological disorders (≥6 sounds in error, intelligibility low). Children with mild profiles do not show the same generalization patterns — a traditional or cycles approach may be a better fit.
• Parental and teacher preparation. Children selected for complexity targets often produce reduced clusters early in treatment (“top” for “stop”). The selection rationale should be explained to families and teachers so they don’t perceive the approach as targeting the wrong thing.

Clinical Notes

The dual criterion — 70% accuracy on trained items AND emergent production on at least one untrained target — operationalizes what the complexity approach is for. A goal that only tracks trained-item accuracy is indistinguishable from a traditional approach and loses the rationale for selecting a hard target.

The 10% threshold for emergent production is intentionally low. Generalization is rare and slow; counting any consistent production above zero on a previously absent sound is meaningful evidence. Higher thresholds will fail to detect early system change.

The Storkel (2018) framework gives an explicit algorithm for target selection that integrates productivity, stimulability, complexity, and developmental norms. Cite which factors drove this child’s target selection in the rationale section of the eval report. “We picked /sl/ because it’s complex” without the supporting analysis is insufficient documentation.

The complexity approach is not a one-size-fits-all method. Selecting an /s/-cluster for a child whose underlying issue is childhood apraxia of speech, motor-based speech sound disorder, or hearing loss can stall progress for months. Match the approach to the diagnosed phonological profile, not the apparent surface error.

Related Goals

• /r/ in Initial Position — Minimal Support — traditional motor-based articulation goal; useful contrast with this phonological approach
• Lateralized /s/ to Frontal Placement — Moderate Support — placement-error goal; different mechanism from phonological pattern targeting