Childhood Use of Coin Pusher and Crane Grab Machines, and Adult Gambling: Robustness to Subjective Confidence in a Young Adult USA Sample

Gambling as a youth is a risk factor for experiencing gambling-related harm as an adult. Most youth gambling research focuses on illegal engagement with age-restricted products, but youth can also gamble legally, by for example betting with friends, or via coin pusher and crane grab machines. Research has associated recollected rates of usage of these machines as a child with adult gambling participation and problems, but only in the UK and Australia, and has not tested for robustness to subjective confidence. The present study conceptually replicated these prior studies by investigating the association between recollected childhood use of coin push and crane grab machines, and adult gambling behavior, in a young adult USA sample. Participants rated their subjective confidence to test if individual differences in recollection biases provided a better account for any observed associations. Results found high recollected engagement rates for both coin pusher (87.2%) and crane grab machines (97.0%), and 5 of the 6 tested associations between youth machine usage and adult gambling engagement and problems were significant and in the hypothesized direction. Rates of subjective confidence were on average high (83.3 and 89.2 on a 0 to 100 scale), and generally did not interact with participants' recollected rates of machine use. These findings extend prior research on potential public health concerns around children's legal engagement with coin pusher and crane grab machines to a new country, the USA.