PCC counts only correct consonants for a completed word.

PCC counts only correct consonants for a completed word.

• A. Word Frequency
• B. pMLU
• C. Proximity
• D. PCC

Answer: (D)

Percent Consonants Correct focuses on how accurately consonants are produced in a word. It measures articulation by comparing the spoken word to the target and counting only the consonants that match the target. You take the number of correct consonants, divide by the total number of consonants in the target word, and multiply by 100. Vowels don’t enter the calculation, and substitutions, omissions, or distortions of consonants reduce the score. This makes PCC a direct measure of consonant accuracy, which is a key aspect of intelligibility in speech assessment. For example, if the target word has four consonants and the produced word has all four correct consonants in the right places, PCC is 100%. If one consonant is produced incorrectly or omitted, PCC would be 3/4, or 75%, illustrating exactly how well the consonants were produced. The other concepts listed—Word Frequency (usage in language), pMLU (a length-related phonological measure), and Proximity (a general closeness metric)—do not specifically capture consonant-by-consonant accuracy in the produced word, which is why PCC is the best answer here.

Percent Consonants Correct focuses on how accurately consonants are produced in a word. It measures articulation by comparing the spoken word to the target and counting only the consonants that match the target. You take the number of correct consonants, divide by the total number of consonants in the target word, and multiply by 100. Vowels don’t enter the calculation, and substitutions, omissions, or distortions of consonants reduce the score. This makes PCC a direct measure of consonant accuracy, which is a key aspect of intelligibility in speech assessment.

For example, if the target word has four consonants and the produced word has all four correct consonants in the right places, PCC is 100%. If one consonant is produced incorrectly or omitted, PCC would be 3/4, or 75%, illustrating exactly how well the consonants were produced. The other concepts listed—Word Frequency (usage in language), pMLU (a length-related phonological measure), and Proximity (a general closeness metric)—do not specifically capture consonant-by-consonant accuracy in the produced word, which is why PCC is the best answer here.