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. 2024 Apr 9;54:110396. doi: 10.1016/j.dib.2024.110396

Table 1.

Metadata variables in the dataset.

Variable name Description
country Country of data collection.
waves Participation in waves.
anonID Anonymized individual participant's ID code.
startdate Starting time of data collection.
month_collection Month of data collection in each wave.
school Anonymized ID code of participating school.
class Anonymized ID code of participating class.
school_SES Socio-economic status of school (varied across countries; not possible to define for Estonia and Finland).
version Version of the questionnaire.