Table 3.
Descriptive statistics of the speech recognition growth curves of the first implanted ears.
| Measures from speech recognition growth curve | Measures of central tendency and variability |
||||||
|---|---|---|---|---|---|---|---|
| Min | Max | Range | M | SD | Mdn | IQR | |
| First implanted ears | |||||||
| Slope (PROSPER/year) | 0.51 | 23.28 | 22.78 | 4.44 | 4.1 | 4.0 | 3.33 |
| Time (years) | 1.52 | 16.14 | 14.62 | 5.94 | 2.96 | 5.0 | 3.17 |
| Score at plateau (PROSPER) | 17.5 | 20 | 2.5 | 19.52 | 0.70 | 20 | 1 |
Score map for relating prosper scores to raw scores: PROSPER score < 18 ➞ raw score < 25%; 18 ≤ PROSPER score < 19 ➞ 25% ≤ raw score < 50%; 19 ≤ PROSPER score < 20 ➞ 50% ≤ raw score < 75%; PROSPER score = 20 ➞ raw score < 75%. Note that these raw scores are from the last category of “Speech Perception Test” presented in the second column of Table 2 (i.e., “W22/NU6/CNC”). IQR = interquartile range; PROSPER = Pediatric Ranked Order Speech Perception.