Workshop A: Analyzing large scale assessment data using R–package RALSA 

Tuesday morning, June 14, 9.00-12.30 CET

The workshop will be divided into two parts. The first part will make a short introduction to ILSAs’ complex sampling and assessment designs using TIMSS as an example. A specific stress will be put on the consequences of these designs on the analysis of studies’ data using examples.

The second part will introduce the analysis software (RALSA) for analyzing data from ILSAs. The data preparation and analysis features will be explained. The overview will also include demonstrations on using both the command line and the graphical user interface. The remaining time will be devoted to guided hands-on training using the graphical user interface of the package. Through these guided exercises all features will be demonstrated. If the time permits, at the end of the workshop assignments will be given to the participants to complete on their own with assistance from the instructor.

The workshop will use data from Nordic countries participating in the IEA’s Trends in International Mathematics and Science study (TIMSS) 2019 (grades 4 and 9). Regardless of the study and the cycle, RALSA always applies the correct estimation techniques, given the study design and implementation.

By the end of the workshop the participants are expected to have gained the following:

  • Knowledge, understanding and appreciation on the ILSAs design and methodology, as well as the statistical complexities and issues for analyzing their data;
  • Knowledge and understanding on the computational routines used in ILSAs; and
  • Skills to analyze data using an R package, tailored for ILSAs design.

Target group and previous knowledge requirements
The workshop is intended both for analysts who do not have yet the knowledge and experience using ILSAs’ data, as well as for researchers with more experience.

Previous experience with R is welcome, but not a prerequisite, RALSA has intuitive and easy to use syntax, as well as graphical user interface. Working knowledge on basic statistics is required. All materials for the workshop, including the software, will be provided free of charge. The participants will need a computer to install the software and perform the sample analyses.

Workshop leader

The workshop will be led by Dr. Plamen Mirazchiyski, International Educational Research and Evaluation Institute (INERI), Slovenia

Photo of Plamen Mirazchiyski