Hans?Dieter Daniel|Przemys?aw Biecek
<b>intsvy</b>: An <i>R</i> Package for Analyzing International Large-Scale Assessment Data
University of Oxford|Warsaw University of Technology
paper introduces intsvy r package working international assessment data eg pisa timss pirlsthe package includes functions importing data performing data analysis visualizing resultsthe paper describes underlying methodology provides real data examplestools importing data allow users select variables student home school teacher survey instruments well specific countriesdata analysis functions take account complex sample design replicate weights rotated test forms plausible values achievement scores calculation point estimates standard errors means standard deviations regression coefficients correlation coefficients frequency tablesvisualization tools present data aggregates standardized graphical form