Table 2. Complete Statistical Details for the Between-Participants Generalized Estimating Equation (GEE) Analyses Presented in Text for Between-Group Comparisons.
| Comparison | A Group (2: Block + Train, Sham + Train) Finger (6: all) Session (3: all)a | Bi Offline | Bii Retention | C Group (2: block only, Block + Train) Finger (6: all) Session (3: all)a | Di Offline | Dii Retention |
|---|---|---|---|---|---|---|
| Group (2: Block + Train, Sham + Train) Finger (2: left index, left ring) | Group (2: block only, Block + Train) Finger (5: no R middle) | |||||
| Note. Columns A and B contain analyses presented for the trained groups, (A) for all six fingers and three sessions, revealing a difference in the way thresholds change over session for the fingers; and (B) hypothesis-driven follow-up tests between the left index/ring of the Block + Train vs. Sham + Train groups, which indicate a significant group effect (main effect of group) in the offline (Bi) but not long-term retention sessions (Bii; see in-text for direction of group main effect and its interpretation). Columns C and D contain analyses presented for the blocked groups, (C) for all six fingers and three sessions, also revealing a difference in threshold change over session between fingers; and (D) hypothesis-driven, follow-up tests between the five fingers tested (no deafferentation-adjacent finger) for the block only group vs. the Block + Train group, revealing a significant group effect (main effect of group) at the offline (Di) but not retention sessions (Dii; see in-text for direction of this group main effect and its interpretation). Follow-up GEEs in Columns B and D were Bonferroni corrected for multiple comparisons (α = .25). QICC = corrected quasi-likelihood under independence model criterion. Shaded sections indicate critical interactions. | ||||||
| a Indicates this comparison was rerun without data for the injected finger while anaesthetic effects may have still been apparent (right index finger, online session); interaction remained p < .05. | ||||||
| * Indicates a significant difference at p = .05. | ||||||
| Finger | χ2(5) = 19.53, p = .002* | χ2(1) = 29.11, p < .001* | χ2(1) = 9.43, p = .002* | χ2(5) = 18.85, p = .002* | χ2(4) = 17.61, p = .001* | χ2(4) = 32.75, p < .001* |
| Session | χ2(2) = 3.30, p = .192 | χ2(2) = 2.33, p = .312 | ||||
| Group | χ2(1) = .42, p = .519 | χ2(1) = 5.56, p = .018* | χ2(1) = .64, p = .425 | χ2(1) = 5.09, p = .024* | χ2(1) = 7.68, p = .006* | χ2(1) = 3.52, p = .062 |
| Finger × Session | χ2(10) = 55.99, p < .001* | χ2(10) = 35.01, p < .001* | ||||
| Finger × Group | χ2(5) = 5.92, p = .314 | χ2(1) = .42, p = .517 | χ2(1) = .42, p = .515 | χ2(5) = 4.07, p = .539 | χ2(4) = 1.42, p = .841 | χ2(4) = 3.99, p = .406 |
| Session × Group | χ2(2) = 5.98, p = .050 | χ2(2) = 7.45, p = .024* | ||||
| Finger × Session × Group | χ2(10) = 38.42, p < .001* | χ2(10) = 26.29, p = .003* | ||||
| QICC | 230.04 | 24.45 | 24.41 | 244.85 | 72.20 | 63.42 |