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NAEP Assessment Sample Design → NAEP 2009 Sample Design → Sample Design for the 2009 National Assessment → Hands-On Tasks (HOT) and Interactive Computer Tests (ICT) for the 2009 Science Assessment

NAEP Technical DocumentationHands-On Tasks (HOT) and Interactive Computer Tests (ICT) for the 2009 Science Assessment

      

Selection of Primary Sampling Units

Public School Science HOT and ICT Assessments

Private School Science HOT and ICT Assessments

School and Student Participation Results for the Science HOT and ICT Assessments

The sample design for the 2009 science hands-on tasks (HOT) and science interactive computer tests (ICT) assessments provided a nationally representative sample of fourth-, eighth-, and twelfth-grade students.

This was accomplished by designing separate sample components for public and private schools. The selected samples were based on a three-stage sample design:

  • selection of primary sampling units (PSUs),
  • selection of schools within strata, and
  • selection of students within schools.

The samples of schools were selected with probability proportional to a measure of size based on the estimated fourth-, eighth-, and twelfth-grade enrollment in the schools.

The target population respectively included all students in public and private schools, Bureau of Indian Education (BIE) schools and Department of Defense Education Activity (DoDEA) schools, who were enrolled in the fourth, eighth, and twelfth grade at the time of assessment.

The table below shows the target student sample sizes of assessed students for each sample.

Target student sample sizes of assessed students for grades 4, 8, and 12 science hands-on tasks (HOT) and interactive computer tests (ICT) assessments, by assessment and school type: 2009
School type Grade

Assessment

Science HOT Science ICT
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 National Science Assessment.
Public 4, 8, 12 1,800 1,800
Private 4, 8, 12 200 200

To reduce the burden on any particular school, efforts were made to minimize the overlap of the 2009 science sample PSUs with the PSUs selected for the 2008 arts sample and the 2008 long-term trend sample.


Last updated 30 July 2010 (EH)