What type of research methodology is primarily used in IEA studies?

The primary research methodology used in IEA studies is quantitative research methodology. This approach focuses on the collection and analysis of numerical data to understand educational phenomena. IEA studies often utilize large-scale assessments that aim to measure student achievement, educational systems, and other variables in a statistically objective manner.

Quantitative research allows for the application of statistical analyses, enabling the identification of patterns and trends across different populations and educational contexts. This methodology is particularly effective in evaluating educational outcomes, as it provides robust data that can support generalizations across various groups and settings. The emphasis on standardized testing and measurable outcomes is a hallmark of IEA's approach, ensuring a consistent framework for comparing educational quality across countries and over time.

This method also aids in the establishment of benchmarks and performance standards, which are critical for informing policy decisions and improving educational practices globally.