Improvement is exhausting. It’s okay to enjoy when you don’t excel.

Covering psychology the past several years, I’ve grown used to reading about how classic, viral experiments in the field are failing in rigorous retests. It’s often disappointing to read about: Many times the debunked ideas were, ultimately, about helping people become better versions of themselves.

But this time, I feel some relief.

This week, the journal Royal Society Open Science published a replication of an influential 1993 study on violin players at a music school in the journal Psychological Review.

The original finding was simple, and compelling: The very best, expert players — those who were considered elite — were the ones who had practiced the most. The conclusions implied that deliberate practice was the most important ingredient needed to achieve elite status, more important than inborn characteristics like genetics, or personality.

Perhaps you’ve heard of this. The idea was then popularized in the book Outliers by journalist Malcolm Gladwell. He dubbed it the “10,000-hour rule.” “Ten thousand hours is the magic number of greatness,” Gladwell wrote, drawing on anecdotes from famous success-havers (like Bill Gates and the Beatles), but also on the 1993 paper (which according to Google Scholar has been cited more than 9,800 times).

The replication — conducted by Brooke Macnamara and Megha Maitra of Case Western Reserve University — included a somewhat larger sample size and tighter study controls, and was preregistered (meaning that the scientists locked their methods and analysis plans in place before they collected any data, preventing them from retroactively changing their premise to fit their findings).

It finds that practice does matter for performance, but not nearly as much as the original article claimed, and surprisingly, it works differently for elite performers.