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 address: Marc Brysbaert