1, 2īecause of the scope and complexity of data from large-scale assessment programmes, such as PIAAC, the analysis of their data requires proper statistical methods-namely, the use of weights and plausible values. This chapter describes the use of EdSurvey for each activity, with a focus on PIAAC data. Developed by the American Institutes for Research and commissioned by the NCES, this package manages the entire process of analyses of Programme for the International Assessment of Adult Competencies (PIAAC) data: downloading, searching the codebook and other metadata, conducting exploratory data analysis, cleaning and manipulating the data, extracting variables of interest, and finally data analysis.
The EdSurvey package is a collection of functions for use in the R programming language R Core Team ( 2019) to help users easily work with data from the National Center for Education Statistics (NCES) and international large-scale assessments.
