This resource provides states with an overview on how to gather representative parent involvement data for State Performance Plan/Annual Performance Report (SPP/APR) Indicator B8. The resource defines key concepts such as representativeness, sampling, nonresponse bias, response rates, and weighting. It also offers information on how to improve the quality of parent involvement data, including strategies that can help states collect representative data and evaluate and improve the representativeness of their data before, during, and after data collection.