This project site contains the supplementary materials associated with the Language 0-5 non-word repetition paper, which are publically available via a view-only anonymous link. The manuscript is in press in Language Learning. Please see the 1st author's publications page for the link: https://www.mpi.nl/people/rowland-caroline/publications These are: - Details about the method and coding scheme for the new NWR task (see Appendix S1 and score sheet) - The CLASSIC model python code (classic.py). For more information contact gary.jones@ntu.ac.uk. - The analysis output files (R). Note that we have not provided raw code and data as we do not have permission to share the raw data files publically. Contact caroline.rowland@mpi.nl for access. - a wav file demonstrating how the non-words were pronounced during the task The analysis output files are as follows: - The analyses for the modelling sections of the paper (classic.NWR.....html) - An analysis comparing the four different NWR task coding schemes (children.NWR.assumptions.OSF.html) - The inter-rata reliability analysis for coding the children's data (children.NWR.agreement.OSF.html) - The main analyses for the children's data (children.NWR.analysis.....html)