## 3 Results
### Speakers Variability Results
\begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multicolumn{1}{c}{**Feature**} & **S01** & **S02** & **S03** & **S04** & **S05** & **All** \\ \hline silencesMean & & **4 (0.675)** & **6 (0.638)** & **3 (0.673)** & **2 (0.744)** & **2 (0.662)** & **1 (0.692)** \\ silencesPerSecond & & **10 (0.6)** & **1 (0.754)** & **2 (0.696)** & **3 (0.725)** & 11 (0.581) & **2 (0.683)** \\ jitterLocal\_sma3 nz\_amen & & **1 (0.688)** & 16 (0.534) & **5 (0.618)** & **8 (0.683)** & 22 (0.515) & **3 (0.65)** \\ FosemitoneFrom27.5 Hz\_sma3 nz\_stddevNorm & **7 (0.646)** & **7 (0.633)** & 22 (0.506) & **4 (0.712)** & 17 (0.559) & **4 (0.647)** \\ jitterLocal\_sma3 nz\_stddevNorm & **2 (0.683)** & **2 (0.681)** & 18 (0.524) & **6 (0.689)** & 9 (0.592) & **5 (0.631)** \\ FosemitoneFrom27.5 Hz\_sma3 nz\_stddevRisingSlope & 5 (0.662) & 12 (0.578) & **7 (0.601)** & **9 (0.666)** & **3 (0.651)** & **6 (0.629)** \\ FosemitoneFrom27.5 Hz\_sma3 nz\_perementi80.0 & 17 (0.572) & **3 (0.67)** & **4 (0.652)** & 16 (0.548) & **1 (0.684)** & **7 (0.628)** \\ FosemitoneFrom27.5 Hz\_sma3 nz\_peltrange0.2 & 11 (0.598) & 14 (0.559) & 15 (0.545) & **7 (0.689)** & 18 (0.544) & **8 (0.626)** \\ FosemitoneFrom27.5 Hz\_sma3 nz\_stddevFallingSlope & **3 (0.679)** & **8 (0.6)** & **8 (0.6)** & 14 (0.595) & 10 (0.588) & **9 (0.625)** \\ StddevVoicedSegmentLengthSec & 22 (0.506) & **4 (0.66)** & 16 (0.535) & **10 (0.762)** & 16 (0.561) & **10 (0.601)** \\ loudnessPeakPerSec & & 12 (0.595) & 13 (0.563) & 12 (0.558) & 17 (0.533) & **8 (0.603)** & **11 (0.586)** \\ shimmerLocal\_BB\_sma3 nz\_stddevNorm & **9 (0.601)** & **5 (0.642)** & 11 (0.58) & 13 (0.598) & 14 (0.563) & 12 (0.583) \\ shimmerLocal\_BB\_sma3 nz\_amen & **6 (0.651)** & 18 (0.523) & **1 (0.698)** & 20 (0.532) & 21 (0.528) & 13 (0.583) \\ loudness\_sma3\_stddevNorm & 18 (0.569) & 10 (0.585) & 14 (0.548) & **11 (0.615)** & 20 (0.53) & 14 (0.579) \\ MeanUnvoicedSegmentLength & **8 (0.617)** & 9 (0.586) & 20 (0.518) & **10 (0.628)** & 19 (0.542) & 15 (0.557) \\ StddevUnvoicedSegmentLength & 15 (0.579) & 11 (0.581) & 21 (0.511) & **12 (0.613)** & 13 (0.575) & 16 (0.555) \\ loudness\_sma3\_meanFallingSlope & 13 (0.59) & 15 (0.549) & 17 (0.524) & 15 (0.578) & **7 (0.609)** & 17 (0.545) \\ VoicedSegmentsPerSec & 16 (0.573) & 19 (0.517) & 9 (0.599) & 21 (0.519) & 12 (0.577) & 18 (0.521) \\ loudness\_sma3\_stddevFallingSlope & 19 (0.528) & 21 (0.513) & 13 (0.555) & **18 (0.532)** & **5 (0.624)** & 19 (0.519) \\ loudness\_sma3\_peltrange0.2 & 20 (0.512) & 22 (0.504) & 10 (0.586) & **5 (0.696)** & **4 (0.63)** & 20 (0.514) \\ MeanVoicedSegmentLengthSec & 14 (0.582) & 20 (0.514) & **6 (0.617)** & 22 (0.503) & 15 (0.562) & 21 (0.514) \\ loudness\_sma3\_stddevRisingSlope & 21 (0.509) & 17 (0.523) & 19 (0.52) & 19 (0.532) & **6 (0.612)** & 22 (0.501) \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Ranking of the correlated prosodic features (frequency, energy and temporal) between each C1 speaker and the expert evaluation. The first number represents the order of each feature in the ranking and the second number shows the area under the ROC curve. These values were calculated using an SVM classifier. The features are sorted by their importance when all data are used. Values in bold represent an area under the ROC curve above 0.6. In order to see the influence of the speaker in the classification results, we present results per speaker in Table 5 and we focus on Case D to comment on them. Only the samples of corpus C1 are analyzed because they were evaluated by the two evaluators and because measurements of their developmental level were available. Comparing the judgments of the expert with the classifier predictions, there is a high recall in the R-R case for all speakers (S01 83.9%, S02 87.7%, S03 97.4%, S04 94.6%, S05 88%). The coincidence in the W-W case is lower: while S02 and S05 present a reasonable classification rate (72% and 70.3%, respectively), results for S03 go down to 26.3%.