Table 2 Levels of adaptive difficulty implemented in the staRt software. Parameters (represented in columns) change on a rotating basis between levels; the parameter that was changed in a given level is in bold
Level | Complexity | Feedback Frequency | Mode of Elicitation |
|---|---|---|---|
1 | Syllable | 3 KR, 2 KP + model; biofeedback at 80% | Read independently |
2 | 1 syllable word | 3 KR, 2 KP + model; biofeedback at 80% | Read independently |
3 | 1 syllable word | 3 KR, 2 KP + model; biofeedback to 50% | Read independently |
4 | 1 syllable word | 3 KR, 2 KP + model; biofeedback at 50% | Blocked prosodic manipulation |
5 | 1 syllable word with competing /l/ or /w/ | 3 KR, 2 KP + model; biofeedback at 50% | Blocked prosodic manipulation |
6 | 1 syllable word with competing /l/ or /w/ | 3 KR, 1 KP + model; biofeedback at 50% | Blocked prosodic manipulation |
7 | 1 syllable word with competing /l/ or /w/ | 3 KR, 1 KP + model; biofeedback to 20% | Randomized prosodic manipulation |
8 | 1 syllable word with competing /l/ or /w/ | 3 KR, 1 KP + model; biofeedback at 20% | Randomized prosodic manipulation |
9 | 2 syllable word | 3 KR, 1 KP + model; biofeedback at 20% | Randomized prosodic manipulation |
10 | 2 syllable word | 2 KR, 1 KP + model; biofeedback at 20% | Randomized prosodic manipulation |
11 | 2 syllable word | 2 KR, 1 KP + model; biofeedback to 0% | Randomized prosodic manipulation |
12 | 2 syllable word with competing /l/ or /w/ | 2 KR, 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |
13 | 2 syllable word with competing /l/ or /w/ | 2 KR with self-evaluation; 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |
14 | Words in carrier phrases | 2 KR with self-evaluation; 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |
15 | Words in sentences | 2 KR with self-evaluation; 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |
16 | Sentences with multiple /r/ targets, clinician scores only one | 2 KR with self-evaluation; 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |
17 | Sentences with multiple /r/ targets, clinician scores both | 2 KR with self-evaluation; 1 KP + model; biofeedback at 0% | Randomized prosodic manipulation |