sources: 18022

{
    "link": "https://datacatalog.worldbank.org/dataset/harmonized-learning-outcomes-hlo-database",
    "retrievedDate": "26/04/2021",
    "additionalInfo": "This dataset provides globally comparable learning outcomes disaggregated by subject, level, and gender for 164 countries, covering 98% of the global population from 2000 to 2017. The HLO dataset draws on seven psychometrically designed standardized assessments: three international tests, three regional standardized achievement tests, and the Early Grade Reading Assessment, to construct the HLO scores.\n\nTo construct the national average HLO score by country-year, we take a simple average of all subject and schooling level test scores available, with the exception of China. The authors provide a nationally representative average HLO score for China, with a breakdown by gender.\n\nNot all observations are nationally representative. A full breakdown of the source test used and the nationally representativeness of each observation is available <a href=\"https://owid.cloud/app/uploads/2021/04/hlo2021-obs-by-obs.xlsx\" rel=\"noopener\"target\"_blank\">here</a>.\n\nFor further details on the methodology see: https://www.nature.com/articles/s41586-021-03323-7#Abs1",
    "dataPublishedBy": "Angrist, N., Djankov, S., Goldberg, P.K. et al. (2021) Measuring human capital using global learning data. Nature. https://doi.org/10.1038/s41586-021-03323-7",
    "dataPublisherSource": "International and regional standardised tests"
}