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. 2018 Dec 4;28(1):53–82. doi: 10.1044/2018_AJSLP-18-0037
Units and symbols
dB decibel
ms milliseconds
n count
% percentage
Measures and classifications
CAS Childhood apraxia of speech
CD Childhood dysarthria
DS Down syndrome
DI Dysarthria Index
DSI Dysarthria Subtype Indices
MSD Motor speech disorder
NSA Normal(ized) speech acquisition
PM Pause Marker
PMI Pause Marker Index
PVC Percentage of vowels correct
PSD Persistent speech delay
PSE Persistent speech errors
PSI Precision–Stability Index
PVSP Prosody-Voice Screening Profile
SD Speech delay
SDCS Speech Disorders Classification System
SDCSS Speech Disorders Classification System Summary
SE Speech errors
SMD Speech motor delay
SPMS Supplementary Pause Marker signs