3y 0m
Clinical Calculators
Instant scoring formulas and developmental benchmarks for speech and language samples.
Percentage of Consonants Correct (PCC)
Shriberg & Kwiatkowski (1982) metric for speech sound severity.
Correct consonants = 128 − errors = 128
Calculated PCC100.0%
Severity: Mild Involvement128/128 correct · 0 errors
The client achieved a Percentage of Consonants Correct (PCC) score of 100% (128/128 correct target consonants), indicating a Mild Involvement speech sound disorder according to Shriberg & Kwiatkowski (1982) metric criteria.
📖 Reference: Shriberg & Kwiatkowski (1982); Bernthal, Bankson, & Flipsen Jr. (9th Ed.), Ch. 3, Table 3.5.