Dataset: Wave 9 CTP Item Level Data

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Contains data for the CTP measures for Wave 9. See Master codebook or WRRMP measures list for more info.

Are these data unique or derived? ? If data were collected specifically for this project and are not stored in a slightly different form elsewhere, they are unique. If these data combine or use data from other datasets, they are derived
Petrill, S. (2021). Wave 9 CTP Item Level Data. LDbase.