I'm unsure. I found it linked from an earlier discussion (
https://www.annieduke.com/amazon-prime-day-cash-crash-annies...) where the intent was to share the actual study, but I don't know the chain of custody.
Here's a direct SciHub link in case others find it preferable: http://sci-hub.tw/10.1007/s12108-018-9381-5