This is a three-year longitudinal study conducted in the French area of the Basque Country.
Subjects included bilingual children acquiring Basque and
French, either simultaneously or consecutively (first language Basque or French)
and monolinguals in both languages. The children had a mean age of 5 years at the first data
collection point (from 4;6 to 6;0). Data were collected in the two languages
on an elicitation task based on the booklet "Frog where are you?"
Subjects included:
2009: 5 bilinguals and 1 French monolingual
2010: 5 bilinguals and 1 French monolingual
2011: 7 bilinguals and 1 French monolingual
Please see this link for a general description of the Frog Story methods.