Perl users in our study performed notably poorly... no better than a language designed largely by chance.
They mean this literally, having used in their study a language called “Randomo”:
With the exception of braces, the lexical rule for variable names, and a few operators (e.g., addition, subtraction, multiplication, division), many of the keywords and symbols were chosen randomly from the ASCII table.
http://www.cs.siue.edu/\~astefik/papers/StefikPlateau2011.pdf