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National Center for Special Education Research


Characteristics of States Monitoring and Improvement Practices
NCSER 2008-3008
October 2007

Table D-24b.  Number and percentage of states that oversampled specific categories, by category: School year 2004-05

Category Percent of
Number of states All states [N=51] States that used oversampling [n=13]
Did not use stratified random sampling1 13 25
Oversampling not used 25 49
Disability category 7 14 54
Race/ethnicity 3 6 23
Initial evaluations 1 2 8
Speech/language 2 4 15
Age or grade level 2 4 15
Related services 1 2 8
English language learners 1 2 8
Educational environment 1 2 8
Previous year's dropouts 1 2 8
Not applicable.
1 In addition to other types of sampling, this includes child records not reviewed and nonresponse.
NOTE: States could oversample more than one category, therefore, the Percent columns will not sum to 100.
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.