single year maps
five year windows
This page is a collection of diagrams which map the historical development of L2 vocabulary research.
Some of the maps in this collection are based on a comprehensive analysis of all the data available in the VARGA database for a specific year. Other maps cover a number of years from the output of specific journals. The remaining maps are subject specific maps that examine sub-topics within L2 vocabulary research.
Each map page contains a co-citation analysis of the specified data set. The methodology page explains how these maps are generated.
In the long term, I am intending to produce a whole series of maps of this sort, one for each year between 1982 and the present. I am also investigating other bibliometric sources for looking at vocabulary research. Specifically, I am developing some large scale maps based on the research appearing in some long-running journals. This will allow me to plot the appearance of research fronts and the emergence of research priorities over the whole of the 20th Century.
If you are interested in collaborating with this work, please contact me.
Current collaborators include: