Table D-22. Number and percentage of states that used random sampling to select child records for review, by type of random sampling used: School year 2004-05
| Type of random sampling | Percent of | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of states | All states [N=51] | States that used random sampling [n=46] | ||||||||||
| Random sampling not used1 | 5 | 10 | ‡ | |||||||||
| Simple random sampling used | 5 | 10 | 11 | |||||||||
| Stratified random sampling used | 38 | 75 | 83 | |||||||||
| Other type of sampling used | 3 | 6 | 7 | |||||||||
|
‡ Not applicable. 1 Includes child records not reviewed and nonresponse. NOTE: Percentages may not sum to totals because of rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Special Education Research, Evaluation of States' Monitoring and Improvement Practices Under the Individuals with Disabilities Education Act, Part B Monitoring Evaluation Questionnaire. |
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