If I repeat this experiment, I'll be a lot more careful about that, or also alternate which direction I'm standing in.
I didn't realize R/L preference was biased until I did the data analysis, and during the trials he was picking from both hands often enough that I perceived it as roughly 50% depending on the treats!
I didn't realize R/L preference was biased until I did the data analysis, and during the trials he was picking from both hands often enough that I perceived it as roughly 50% depending on the treats!