Table 2.
Generalized mixed-effects regression model for performance accuracy with 95% confidence intervals
| Predictor | Definition | B | SE | z | p |
|---|---|---|---|---|---|
| (Intercept) | 1.401 [0.999, 1.80] | 0.205 | 6.822 | < 0.001*** | |
| Level | Number of imagined tones (i.e., silent arrows) per trial | − 0.357 [− 0.463, − 0.251] | 0.054 | − 6.574 | < 0.001*** |
| Probability_Probe | Probability of the probe, given the total number of arrows presented in the trial | 2.926 [2.344, 3.508] | 0.297 | 9.848 | < 0.001*** |
|
ProbeNote_ is_StartNote |
A binary variable indicating whether the probe note was identical to the start note of the sequence | − 0.680 [− 0.927, − 0.433] | 0.126 | − 5.407 | < 0.001*** |
| Stage 2 | Factor describing trials where start note is tonic, and number arrows in set-up sequence is 3–5 | − 0.070 [− 0.286, 0.146] | 0.110 | − 0.631 | 0.528 |
| Stage 3 | Factor describing trials where start note is dominant, and number arrows in set-up sequence is 3–6 | 0.119 [− 0.130, 0.368] | 0.127 | 0.934 | 0.350 |
| Stage 4 | Factor describing trials where start note is tonic or dominant, and number arrows in set-up sequence is 3–6. Stage 4 trials only reached when participants successfully completed Level 5–Stage 3 | 0.772 [0.186, 1.358] | 0.299 | 2.583 | 0.010** |
Statistical significance is denoted as **p < 0.01, ***p < 0.001