Overview of 2005 Science Assessment Procedures

To find out more about the 2005 science assessment, explore the pages below that discuss the design, collection, analysis, and reporting procedures used by the NAEP program.

• What the science assessment measures and its framework 
• How the assessment was developed 
• NAEP samples
• Standards for participation
• NAEP inclusion policy, and percentage of students excluded from the science assessment at the national and state level
• Data collection and scoring
• Data Analyses and IRT Scaling
• Item Maps
• Interpreting NAEP science results (includes drawing inferences about results, analyzing group differences with averages and percentages, reporting groups, and cautions in interpretations)