2006 Civil Rights Data Collection

These files are state and national estimations for the Civil Rights Data Collection. The 2006 estimations are based on a rolling stratified sample of approximately 6,000 districts and 60,000 schools, and on reported data from those districts that responded to the survey. Documentation is available from OCR which describes the procedures used for the estimations, including weighting of the sample, imputation for item non-response, standard errors, and quality control procedures. In addition, documentation is available from OCR for estimations that should be used with caution due to large statistical uncertainty in the estimate, including factors which contributed to the extent of this statistical uncertainty for the Civil Rights Data Collection. This hardcopy documentation, available upon request, is contained in "Civil Rights Data Collection (CRDC) Estimations and Documentation."

这些文件是民权数据收集（Civil Rights Data Collection，CRDC）的州级与国家级估算结果。2006年的估算基于约6000个学区及60000所学校的滚动分层抽样，以及回复调查的学区所提交的报告数据。民权办公室（OCR）提供了详述估算流程的文档，内容包括样本加权、项目无应答插补、标准误差及质量控制程序。此外，OCR还提供了针对需谨慎使用的估算的文档——这些估算因存在较大统计不确定性，文档中亦涵盖了导致民权数据收集统计不确定性程度的相关因素。这份纸质文档可按需获取，收录于《Civil Rights Data Collection (CRDC) Estimations and Documentation》中。