Upload processing_metadata_2006_2022.json
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global/pisa/processing_metadata_2006_2022.json
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{
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"processing_date": "2025-07-06T11:49:46.624032",
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"processed_years": [
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2006,
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2009,
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2012,
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2015,
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2018,
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2022
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],
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"year_range": "2006_2022",
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"file_formats": {
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"2006": "converted",
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"2009": "converted",
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"2012": "converted",
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"2015": "sav",
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"2018": "sav",
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"2022": "sav"
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},
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"key_variables": {
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"student_id": [
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"CNTSTUID",
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"STIDSTD",
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"STUID",
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"STDID",
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"StIDStd"
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],
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"country": [
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"CNT",
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"CNTRYID",
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"COUNTRY"
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],
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"school_id": [
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"CNTSCHID",
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"SCHOOLID",
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"SCHID",
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"SCID"
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],
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"gender": [
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"ST004D01T",
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"ST04Q01",
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"ST003D01T"
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],
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"age": [
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"AGE",
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"ST003Q02TA",
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"ST003D02T"
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],
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"grade": [
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"ST001D01T",
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"ST01Q01"
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],
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"escs": [
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"ESCS"
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],
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"wealth": [
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"WEALTH"
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],
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"cultural": [
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"CULTPOSS"
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],
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"homework_time": [
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"TMINS",
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"ST057Q01TA",
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"ST57Q01",
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"ST046Q01TA"
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],
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"motivation": [
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"MOTIVAT",
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"MOTIVA"
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],
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"belong": [
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"BELONG"
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],
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"perseverance": [
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"PERSEV",
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"GRIT"
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],
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"math_score": [
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"PV1MATH",
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"PV2MATH",
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"PV3MATH",
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"PV4MATH",
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"PV5MATH"
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],
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"read_score": [
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"PV1READ",
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"PV2READ",
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"PV3READ",
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"PV4READ",
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"PV5READ"
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],
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"science_score": [
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"PV1SCIE",
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"PV2SCIE",
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"PV3SCIE",
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"PV4SCIE",
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"PV5SCIE"
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]
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},
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"output_files": {
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"combined_international": "trend_analysis/pisa_combined_2006_2022.parquet",
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"spain_trends": "spain_trends/spain_trends_2006_2022.parquet",
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"spain_summary": "spain_trends/spain_summary_2006_2022.csv"
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},
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"notes": {
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"harmonization": "Variables harmonized across years using key_variables mapping",
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"spain_filtering": "Spain identified using country codes: ESP, ES, 724",
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"missing_data": "Missing values preserved as null/NaN in Parquet format",
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"optimization": "Uses column selection and Polars for efficient processing",
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"auto_detection": "Years automatically detected from raw data directory"
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}
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}
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