To the best of my knowledge only one small N-back study has been done and the results were strongly positive. There would be significant social value in getting more data on N-Backing.
http://www.gwern.net/N-back%20FAQ#support
Besides Jaeggi 2008, there have been 2 or 3 studies supporting it to some degree, and 2 or 3 studies opposing it to some degree.
To the best of my knowledge only one small N-back study has been done and the results were strongly positive. There would be significant social value in getting more data on N-Backing.
http://www.gwern.net/N-back%20FAQ#support
Besides Jaeggi 2008, there have been 2 or 3 studies supporting it to some degree, and 2 or 3 studies opposing it to some degree.