Adjusted Primary Reading Scores for International Comparison

EDSTATS provides adjusted primary reading test scores standardized across time and different international and regional assessments. The dataset enables comparison of primary reading performance across countries from 1965 to 2010, using a harmonization method developed by Education Statistics. Scores are approximated to five-year intervals and adjusted via ratios derived from U.S. performance on tests like PISA, TIMSS, and NAEP.

Use Cases

• Analyze trends in the adjusted primary reading score over the 1965-2010 period for specific countries.
• Compare primary reading performance across countries using the standardized score metric.
• Correlate the adjusted reading score with other national development indicators over time.
• Assess the impact of educational policies by tracking changes in the score at five-year intervals.

Strengths

• Scores are standardized for comparability across multiple international and regional assessments.
• Data covers a 45-year time range from 1965 to 2010.
• Methodology explicitly addresses comparability for countries participating in regional tests.

Limitations

• Data granularity is limited to five-year intervals, not annual.
• The adjustment methodology relies on U.S. test scores as a benchmark, which may introduce bias.
• Sample data, column details, and exact country coverage are unknown.

Provenance

Source

Education Statistics (EDSTATS) via the World Bank platform.

Collection Method

Scores are calculated by creating ratios between U.S. scores on international tests (e.g., PISA, TIMSS) and the U.S. NAEP, then applying these ratios to raw international and regional assessment scores.

Time Range

1965 to 2010

Geography

International coverage, including countries participating in international and regional assessments.