Table 1.
Properties of the two sets of stimuli (high and low frequency, 56 items; early- and late-acquired, 52 items).
| Frequency set |
Age of acquisition set |
||||||
|---|---|---|---|---|---|---|---|
| Low frequency | High frequency | p values | Early-acquired | Late-acquired | p values | ||
| Frequency | Movies* | 4.68 | 44.46 | <0.0001 | 31.02 | 22.14 | 0.42 |
| Text* | 10.11 | 66.67 | <0.0001 | 36.81 | 24.43 | 0.46 | |
| Word age of acquisition** | 2.21 | 2.06 | 0.31 | 1.73 | 2.52 | <0.0001 | |
| Length in phonemes* | 4.14 | 4.14 | 1 | 4.19 | 4.09 | 0.73 | |
| Length in syllables* | 1.57 | 1.57 | 1 | 1.69 | 1.47 | 0.19 | |
| Phono-logical neigh-borhood* | 10.62 | 11.84 | 0.61 | 10.46 | 12.31 | 0.44 | |
| Onset sonority*** | 3.71 | 3.71 | 1 | 3.54 | 3.96 | 0.59 | |
| Name agreement** | 96.03 | 94.56 | 0.3 | 95.87 | 94.75 | 0.41 | |
| Visual complexity** | 2.57 | 2.71 | 0.59 | 2.45 | 2.87 | 0.11 | |
| Concept familiarity** | 3.28 | 3.46 | 0.45 | 3.62 | 3.19 | 0.07 | |
*
From the database Lexique (New et al., 2004); **From Alario and Ferrand (1999) and Bonin et al. (2003) on a 5-point scale; *** on a 10-point sonority scale. Bolded values have the significant differences at p < 0.0001.