Table 2.
Test | HA immigrants | SL controls | P | d | Minimum N |
---|---|---|---|---|---|
Memory search | |||||
Standard score | 7.0 ± 0.8 | 6.2 ± 1.5 | 0.064 | 0.67 | 36 |
Reaction time (ms) | 6300.9 ± 430.3 | 5616.3 ± 425.2 | 0.001 | 1.60 | 8 |
Number search | |||||
Standard score | 4.8 ± 1.6 | 4.1 ± 2.7 | 0.324 | 0.32 | 155 |
Reaction time (ms) | 6730.9 ± 648.3 | 6225.7 ± 418.5 | 0.029 | 0.93 | 20 |
Mental rotation | |||||
Standard score | 1.3 ± 0.9 | 2.9 ± 2.8 | 0.045 | −0.77 | 28 |
Reaction time (ms) | 15038.9 ± 4181.0 | 8654.3 ± 684.3 | 0.001 | 2.13 | 5 |
Digit span | |||||
Forward task | 8.7 ± 1.2 | 8.9 ± 1.1 | 0.756 | −0.17 | 545 |
Backward task | 6.7 ± 1.5 | 6.5 ± 1.3 | 0.713 | 0.14 | 802 |
Rey‐Osterrieth Complex Figure | |||||
Immediate recall | 26.0 ± 6.3 | 27.3 ± 6.9 | 0.642 | −0.20 | 394 |
Delayed recall | 25.8 ± 6.8 | 28.0 ± 6.4 | 0.419 | −0.33 | 146 |
Visual reproduction | 13.2 ± 1.8 | 13.9 ± 0.3 | 0.145 | −0.54 | 55 |
The P‐values in bold indicate a significance of P < 0.05; Effect size (d) was computed according to the formula presented by Cohen. The minimum N refers to the equal number of subjects in each group we need to recruit to detect a significant change at the 0.05 level corresponding to a power of 0.8 and the effect sizes (d) we reported here.
Unless otherwise indicated, the data are given as the means ± standard deviation.