Table 4.
Results of crossed and nested pDFA for raven stimuli used in the playback experiments
| Test factor | N test | Control factor | N control | Acoustic variable | N correct | P |
|---|---|---|---|---|---|---|
| Familiarity | 2 | Individual identity | 10 | Duration | 65 | 0.093 |
| Familiarity | 2 | Individual identity | 10 | Mean F0 | 59 | 0.477 |
| Familiarity | 2 | Individual identity | 10 | Number of inflections/s | 61 | 0.160 |
| Familiarity | 2 | Individual identity | 10 | Amplitude modulation | 60 | 0.987 |
| Familiarity | 2 | Individual identity | 10 | Harmonicity | 73 | 0.164 |
| Sex | 2 | Individual identity | 10 | Duration | 49 | 1.000 |
| Sex | 2 | Individual identity | 10 | Mean F0 | 55 | 0.624 |
| Sex | 2 | Individual identity | 10 | Number of inflections/s | 53 | 0.441 |
| Sex | 2 | Individual identity | 10 | Amplitude modulation | 70 | 0.431 |
| Sex | 2 | Individual identity | 10 | Harmonicity | 59 | 0.697 |
| Age class | 2 | Individual identity | 10 | Duration | 78 | 0.042 |
| Age class | 2 | Individual identity | 10 | Mean F0 | 59 | 0.496 |
| Age class | 2 | Individual identity | 10 | Number of inflections/s | 61 | 0.146 |
| Age class | 2 | Individual identity | 10 | Amplitude modulation | 58 | 0.445 |
| Age class | 2 | Individual identity | 10 | Harmonicity | 73 | 0.181 |
| Individual identity | 10 | Calls | 10 | Duration+Mean F0+Number of inflections/s+Amplitude modulation+Harmonicity | 88 | 0.001 |
| Dyad 1 (La+Ki) | 2 | Calls | 10 | Duration | 14 | 0.228 |
| Dyad 1 (La+Ki) | 2 | Calls | 10 | Mean F0 | 19 | 0.005 |
| Dyad 1 (La+Ki) | 2 | Calls | 10 | Number of inflections/s | 12 | 0.495 |
| Dyad 1 (La+Ki) | 2 | Calls | 10 | Amplitude modulation | 12 | 0.588 |
| Dyad 1 (La+Ki) | 2 | Calls | 10 | Harmonicity | 15 | 0.056 |
| Dyad 2 (Ti+Mr) | 2 | Calls | 10 | Duration | 10 | 0.980 |
| Dyad 2 (Ti+Mr) | 2 | Calls | 10 | Mean F0 | 18 | 0.006 |
| Dyad 2 (Ti+Mr) | 2 | Calls | 10 | Number of inflections/s | 13 | 0.246 |
| Dyad 2 (Ti+Mr) | 2 | Calls | 10 | Amplitude modulation | 20 | 0.001 |
| Dyad 2 (Ti+Mr) | 2 | Calls | 10 | Harmonicity | 18 | 0.009 |
| Dyad 3 (Bi+Ma) | 2 | Calls | 10 | Duration | 13 | 0.259 |
| Dyad 3 (Bi+Ma) | 2 | Calls | 10 | Mean F0 | 20 | 0.002 |
| Dyad 3 (Bi+Ma) | 2 | Calls | 10 | Number of inflections/s | 11 | 1.000 |
| Dyad 3 (Bi+Ma) | 2 | Calls | 10 | Amplitude modulation | 20 | 0.002 |
| Dyad 3 (Bi+Ma) | 2 | Calls | 10 | Harmonicity | 16 | 0.025 |
| Dyad 4 (He+Ca) | 2 | Calls | 10 | Duration | 11 | 0.882 |
| Dyad 4 (He+Ca) | 2 | Calls | 10 | Mean F0 | 16 | 0.029 |
| Dyad 4 (He+Ca) | 2 | Calls | 10 | Number of inflections/s | 10 | 0.926 |
| Dyad 4 (He+Ca) | 2 | Calls | 10 | Amplitude modulation | 20 | 0.005 |
| Dyad 4 (He+Ca) | 2 | Calls | 10 | Harmonicity | 15 | 0.065 |
| Dyad 5 (Jo+Ja) | 2 | Calls | 10 | Duration | 11 | 0.909 |
| Dyad 5 (Jo+Ja) | 2 | Calls | 10 | Mean F0 | 18 | 0.015 |
| Dyad 5 (Jo+Ja) | 2 | Calls | 10 | Number of inflections/s | 11 | 0.908 |
| Dyad 5 (Jo+Ja) | 2 | Calls | 10 | Amplitude modulation | 14 | 0.127 |
| Dyad 5 (Jo+Ja) | 2 | Calls | 10 | Harmonicity | 19 | 0.007 |
N test and N control denote the number of test and control factors, respectively. N correct denotes the number of correctly classified calls.