Name researcher David Figlio says that adults of low socio-economic status tend to give their babies low-status names, and that low-status names put children at a disadvantage in school.
How do you spot a “low status” name? One way is to look for extraneous exotic consonants. Figlio says:
The higher the Scrabble score of the name, imagine the exotic consonants: X, J, Q, K, Z. It’s extremely rare for college graduates to give a child a name with two high point letters. High school drop-outs are 30 times more likely to give a kid a name with two high Scrabble point consonants. For example, the name ‘Alexander.’ A parent who is a high school drop-out is dramatically more likely to spell that name Alexzander. So the x/z combination in the middle of the name.