Age of acquisition
Age-of-acquisition ratings on 2816 Dutch four- and five-letter nouns.
These norms were collected by asking 559 undergraduates to indicate for a set of words at which age they thought they had learned them. More details on this study can be found in Ghyselinck, M., De Moor, W., & Brysbaert M. (2000). Age-of-acquisition ratings on 2816 Dutch four- and five-letter nouns, Psychologica Belgica. As also on its validation (De Moor, W., Ghyselinck, M., & Brysbaert, M. (2000). A validation study of the age-of-acquisition norms collected by Ghyselinck, De Moor, & Brysbaert. Psychologica Belgica)
The norms can be downloaded and/or consulted for research purposes, provided that all publications based on research with these norms cite the Ghyselinck, De Moor and Brysbaert study. Note that the norms are for non-profit use only.
| Word | Dutch word |
| Translation | First English translation in the Dutch-English dictionary "Van Dale Handwoordenboek Nederlands-Engels" |
| AoA | Mean age of acquisition rating by undergraduates |
| Stdev | Standard devation on the age of acquisition ratings |
| Total | Total number of raters |
| Freq | Lemma frequency count from Baayen, R. H., Piepenbrock, R., & van Rijn, H. (1993). |
| Logfreq | Logarithmic transformation (base 10) of the frequency measures |
| Age-answ | Total number of people that rated the word with an age |
| %Age-answ | % of people that rated the word with an age |
| N-answ | Total number of people that rated the word as "not known" |
| %N-answ | % of people that rated the word as "not known" |
Also available: A validation study of the age-of-acquisition norms collected by Ghyselinck, De Moor, & Brysbaert.
Contact : Marc Brysbaert