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Statistical Applications Development

Prepare data for analysis

Follow the links below for guidelines on using the data preparation functionalities of RALSA.

  • Download data files
  • Convert data (SPSS, or text in case of PISA prior 2015), print LSA data, select PISA countries
  • Merge study data files from different countries and/or respondents
  • Variable dictionaries (name, class, variable label, response categories/unique values, user-defined missing values)
  • Data diagnostic tables
  • Recode variables
  • Cut continuous variables into discrete categorical
  • Aggregate variables
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  • RALSA
    • About RALSA
    • User guide
      • Installation instructions
      • Getting started with RALSA
      • Prepare data for analysis
        • Download data files
        • Convert data
        • Merge data
        • Variable dictionaries
        • Data diagnostic tables
        • Recode variables
        • Cut variables
        • Aggregate variables
      • Perform analyses
      • Other
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