There's a point where diminishing returns sets in. My guess is that anything over 140k a year would result in the same, if not, lower test scores. Read the fi

There's a point where diminishing returns sets in. My guess is that anything over 140k a year would result in the same, if not, lower test scores. Read the first chapter of Dan Ariely's book: The Upside of Irrationality. Like so many best selling authors, he's simply taking research and dumbing it down for everyone else to consume.