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