Adjusted Secondary Reading Scores Across Countries and Time

Adjusted secondary reading scores provide a standardized metric for comparing student performance across countries and international assessments like PISA and TIMSS. The dataset is constructed by the World Bank's Education Statistics team, linking U.S. scores on international tests to the U.S. National Assessment of Educational Progress. Data points are approximated to five-year intervals, covering a period from 1965 to 2010.

Use Cases

• Analyze trends in adjusted_secondary_reading_score over the 1965-2010 time range to assess global literacy progress.
• Compare country-level performance using the standardized scores, which are made comparable across different international and regional assessments.
• Model the relationship between educational outcomes and national development indicators using this time-series metric.
• Benchmark a country's reading scores against regional averages derived from the transformation of regional assessment data.

Strengths

• Scores are standardized to be comparable over time, across countries, and across different international tests.
• Data transformation includes scores from regional assessments, increasing country coverage.
• Temporal coverage spans 45 years from 1965 to 2010.

Limitations

• Data points are approximated to the nearest five-year interval, reducing temporal granularity.
• The last data point is from 2010, making the dataset over a decade old.
• The methodology relies on ratio approximations which may introduce measurement error.

Provenance

Source

World Bank Education Statistics (EdStats)

Collection Method

Scores are calculated by creating ratios between U.S. secondary reading scores on international tests (PISA, TIMSS) and U.S. NAEP scores, then applying this ratio to raw international scores approximated to five-year intervals.

Time Range

1965-2010

Geography

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