It's a general thing about data. Just because it is easy to measure doesn't mean its a useful metric.
My hunch is that as expertise increases for developers, LOC/day initially goes up, as they have to think less about language constructs and how to do certain things. Once a certain level of expertise is reached, LOC/day goes down, as the developer figures out how to do more with less code and spends more time in decision making and planning.
My hunch is that as expertise increases for developers, LOC/day initially goes up, as they have to think less about language constructs and how to do certain things. Once a certain level of expertise is reached, LOC/day goes down, as the developer figures out how to do more with less code and spends more time in decision making and planning.