This questionnaire (accessible as Gorilla Open Materials at https://app.gorilla.sc/openmaterials/605087) provides a detailed picture of the language experience of speakers of heritage languages (HL) and immersed bilinguals. It contains modules on basic demographics, visits to HL matrix country, proficiency in 5 potential languages in 4 modalities and new media (HL, societal language (SL), and 3 additional languages), frequency of use of the 5 languages in 4 modalities, objective size of the HL and SL interlocutor community in 5 different contexts, quality of input, historical use of HL and SL with self-defined periods, code-switching frequency, patterns, and attitudes, attitudes to HL, and formal education and literacy in HL and SL.
ANALYSIS: A script for turning the textual responses to numerical format and for calculating derived measures can be found in the Data preparation folder.