Are You Still Working on Your New Year's Resolutions?

The study wasn't a randomized or controlled experiment. It's possible that there was something about the way they were asking the questions that led people to report success when they weren't really achieving it. We reached out to parcarl ring for some clarification. He told us that his research sample was indeed unusual, that it wasn't random that he'd recruited volunteers who were, on average, more motivated to make a change.