Dataset: LK2_Public_Small Group Implementation_mmddyy [v.1]

This dataset includes small-group–level implementation data for instructional groups participating in the intervention. Each record represents one small instructional group and is identified using a unique small group ID, with linkage to the delivering interventionist ID. The aggregated variables in this dataset are based on lesson logs completed everyday of intervention (76 logs) and a sample of up to 5 video lesson observations per unit that were coded for adherence.
The study included three recruitment cohorts: Cohort 1 (2021–2022), Cohort 2 (2022–2023), and Cohort 3 (2023–2024). In the study ID protocol, the value “3” was originally reserved to indicate a school attended after a participant moved following study entry. This category was never utilized, but the numbering structure was retained to preserve consistency in participant IDs, student IDs, school IDs and data management procedures. As a result, Cohort 3 is coded as “4” in the dataset.