Table 8.
Spearman’s rank order correlation coefficients, R 2, and associated probabilities for lingual–alveolar contact pressure during speech (LACP-Sp; phonemes combined and individually) and maximum isometric LACP (LACP-Max) as related to word intelligibility.
| All three groups considered |
ALS groups only |
|||||
|---|---|---|---|---|---|---|
| Spearman’s rho | R 2 | p | Spearman’s rho | R 2 | p | |
| All phonemes combined | .417 | .174 | .038 | .797 | .635 | .001 |
| /t/ | .416 | .173 | .038 | .753 | .567 | .003 |
| /d/ | .429 | .184 | .032 | .703 | .494 | .007 |
| /s/ | .603 | .364 | .001 | .720 | .518 | .006 |
| /z/ | .576 | .332 | .003 | .775 | .601 | .002 |
| /l/ | .156 | .024 | .456 | .538 | .289 | .058 |
| /n/ | .320 | .102 | .119 | .659 | .434 | .014 |
| LACP-Max | .623 | .388 | .001 | .852 | .726 | <.001 |
Note. ALS = amyotrophic lateral sclerosis.