
Where is a link to the study results? The link provided by HuskyGal is only the proposal for the study.
For those who are unfamiliar with these devices the term "shock collar" is very out dated. Even here in N. America where use of such training aids, particularly amongst the field trialling enthusiasts, is more accepted (not totally) that term and any old collars to which it might really apply are not endorsed by most. E-collars may be used with no shock at all, relying instead on tone or vibration. Just like your mobile phone. It would have been nice if the study proposal had addressed which would be used though perhaps that's in the results?
ETA: Oh, sorry. If it's in the Final Report at the bottom I can't open that. Anybody got a direct link to it?