Table 4.

Speech sources (14) within the Madison Speech Assessment Protocol (MSAP) for indices and candidate markers in the Competence, Precision, and Stability Analytics (CPSA).

Domain	Descriptors & Markers	MSAP Sourcesa
		CSS	CSS24	VT1	VT2	ATb	MWT1/2	SVT	CWT	RST	VT3	SPT	EST	LST
Competence
Vowels	% of Non-rhotic Vowels/Diphthongs Correct	X
	% of Rhotic Vowels/Diphthongs Correct	X
	% of Phonemic Diphthongs Correct	X
	% of Vowels Correct	X
	% of Vowels Correct: AT					X
	% of Non-rhotic Vowels/Diphthongs Correct Revised	X
	% of Rhotic Vowels/Diphthongs Correct Revised	X
	% of Phonemic Diphthongs Correct Revised	X
	% of Vowels/Diphthongs Correct Revised	X
	% of Vowels/Diphthongs Correct Revised: AT					X
	% of Relative Non-rhotic Vowel/Diphthong Distortions	X
Consonants	% of Consonants in Inventory	X
	% of Consonants Correct	X
	% of Consonants Correct: AT					X
	% of Consonants Correct- Revised	X
	% of Consonants Correct- Revised: AT					X
	% of Consonants Correct in Complex Words: MWT						X
	% of Relative Omission Index	X
	% of Relative Substitution Index	X
	% of Relative Distortion Index	X
Vowels & Consonants	Speech Disorders Classification System	X
	Intelligibility Index	X
	% of Structurally Correct Words	X
Phrasing	% of Appropriate Phrasing	X
Rate	% of Appropriate Rate	X
Stress	% of Appropriate Stress	X
Loudness	% of Appropriate Loudness	X
Pitch	% of Appropriate Pitch	X
Laryngeal Quality	% of Appropriate Laryngeal Quality	X
Resonance Quality	% of Appropriate Resonance Quality	X
Domain	Descriptors & Markers	MSAP Sources
		CSS	CSS24	VT1	VT2	AT	MWT1/2	SVT	CWT	RST	VT3	SPT	EST	LST
Precision
Vowels	Reduced Vowel Space		X	X
	Lengthened Vowels		X	X	X
	Distorted Rhotics		X		X					X
	Reduced Pairwise Vowel Duration Variability		X
Consonants	Nasal Emissions	X				X	X
	Reduced % Glides Correct	X				X	X					X
	Lowered Sibilant Centroids		X			X	X			X
	Lengthened Cluster Durations		X			X	X					X
Vowels & Consonants	Increased % of Phoneme Distortions	X				X	X		X	X	X		X
	Increased Syllable/Word Segregation		X			X	X					X
Phrasing	Increased Repetitions and Revisions		X
Rate	Slower Speaking Rate		X
	Slower Articulation Rate		X
Stress	Reduced Lexical Stress								X
	Increased Lexical Stress								X
	Reduced Emphatic Stress												X
	Reduced Sentential Stress		X
Loudness	Reduced Vowels-Consonants Intensity Ratios		X	X	X	X								X
	Increased Vowels-Consonants Intensity Ratios		X	X	X	X
Pitch	Lowered Fundamental Frequency Mean		X	X
	Raised Fundamental Frequency Mean		X	X
	Lowered Fundamental Frequency Range		X	X
	Increased Fundamental Frequency Range		X	X
Laryngeal Quality	Increased Jitter		X	X				X
	Increased Shimmer		X	X				X
	Reduced Harmonics-to-Noise Ratio		X	X				X
	Increased % Breathy Utterances
	Increased % Rough Utterances		X
	Increased % Strained Utterances		X
	Increased % Break/Shift/Tremorous Utterances		X
Resonance Quality	Increased % Nasal Utterances		X
	Nasal: Lowered F1:/a/		X
	Increased % of Nasopharyngeal Utterances		X
	Nasopharyngeal: Lowered F2: High Vowels		X
Domain	Descriptors & Markers	MSAP Sources
		CSS	CSS24	VT1	VT2	AT	MWT1/2	SVT	CWT	RST	VT3	SPT	EST	LST
Stability
Vowels	Less Stable Vowel Space		X	X
	Less Stable F1		X	X
	Less Stable F2		X	X
	Less Stable Vowel Duration		X	X	X
	Less Stable Rhotic Distortions: F3-F2		X		X					X
	Less Stable Vowel Errors	X		X	X		X		X		X
Consonants	Less Stable Consonant Errors	X					X		X	X
	Less Stable Sibilant Centroids		X			X	X			X
Vowels & Consonants	Less Stable Whole Word Errors	X		X	X				X	X	X
	Less Stable % Phonemes Correct in Complex Words	X					X		X		X
Phrasing	Reduced Speech-Pause Duration Variability Ratio		X
Rate	Less Stable Speaking Rate		X
	Less Stable Articulation Rate		X
Stress	Less Stable Lexical Stress								X					X
	Less Stable Emphatic Stress												X
	Less Stable Sentential Stress		X
Loudness	Less Stable Vowels-Consonants Intensity Ratios		X	X	X									X
Pitch	Less Stable Mean Fundamental Frequency		X	X
Laryngeal Quality	Less Stable Jitter		X	X				X
	Less Stable Shimmer		X	X				X
	Less Stable Harmonics-to-Noise Ratio		X	X				X
Resonance Quality	Less Stable: Nasal: Lowered F1: /a/		X
	Nasopharyngeal: Less Stable F2: High Vowels		X

Note. Bold entries indicate candidate marker analysis completed using acoustic data reduction methods.

^aSee Table 2 for key to abbreviations.

^bAT=Articulation Test, a generic term for alternative articulation tests, including the Goldman-Fristoe Test of Articulation (2^nd ed.), Sounds-in-Words section.