"The research is based on a quantitative analysis of the European Council Conclusions (ECCs) complemented by qualitative examinations of particular elements of the agenda that emerge from the results of the quantitative analysis." See the
“The research is based on a quantitative analysis of the European Council Conclusions (ECCs) complemented by qualitative examinations of particular elements of the agenda that emerge from the results of the quantitative analysis.”
See the full text: Analysis of Agenda Setting in the European Council, 2009–2014 (80 pages, pdf)