Table 4.
Class counts and mean scores for parent report of attentional control
| Class | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| (a) Normative | (b) High attentional control | (c) Low attentional control | (d) Plateaued attention development | (e) Low focus, high shifting | ||||||
| Sample | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 |
| Class counts (and proportions) based on estimated posterior probabilities | 177.44 (60.4%) | 262.73 (63.8%) | 47.03 (16.0%) | 54.13 (13.2%) | 47.03 (16.0%) | 54.13 (13.2%) | 20.09 (6.8%) | 35.51 (8.6%) | – | 18.46 (4.5%) |
| Class counts (and proportions) based on most-likely class membership | 194 (66.0%) | 297 (72.1%) | 43 (14.6%) | 36 (8.7%) | 43 (14.6%) | 41 (10.0%) | 14 (5.0%) | 23 (5.6%) | – | 15 (3.6%) |
| Mean duration of orienting 10 months (SE) | 3.25b (0.13) | 2.59b,d (0.10) | 4.86 (0.52) | 4.48 (0.40) | 1.96a,b,d (0.14) | 1.94a,b,d (0.16) | 3.42b (0.35) | 3.39 (0.21) | – | 1.70a,b,d (0.15) |
| Mean duration of orienting 15 months (SE) | 3.48b (0.18) | 2.89b,d (0.13) | 4.71 (0.14) | 4.42 (0.35) | 2.05a,b (0.21) | 2.04a,b,d (0.19) | 2.48b (0.39) | 3.81 (0.23) | – | 2.12b,d (0.24) |
| Mean attentional focus 25 months (SE) | 4.25 (0.09) | 4.65 (0.08) | 4.63 (0.21) | 5.05 (0.19) | 4.09 (0.20) | 3.37a,b (0.47) | 2.42a,b,c (0.35) | 4.10b (0.49) | – | 2.80a,b (0.29) |
| Mean attention shifting 25 months (SE) | 4.70 (0.06) | 5.10e (0.08) | 4.86 (0.14) | 5.40e (0.15) | 4.49 (0.29) | 3.80a,b,e (0.29) | 3.29a,b,c (0.31) | 3.62a,b,e (0.28) | – | 5.67 (0.18) |
| Mean attentional focus 3 years (SE) | 4.44b (0.11) | 4.96 (0.08) | 5.15 (0.19) | 5.02 (0.63) | 4.11b (0.22) | 4.16a (0.27) | 3.48a,b (0.35) | 3.88a (0.30) | – | 3.57a (0.44) |
Superscripts indicate which groups score higher on that measure (within the same Sample), based on significant (p < .05) post hoc Tukey tests for the 10-, 15- and 25-month measures and chi-square tests run within the 3-step auxiliary approach for 3-year Attentional Focus