Prior research suggests there may be a relationship between play and creativity. In this study we focus on how the perception of playfulness of a creativity assessment relates to the performance on said creativity assessment. It is hypothesized that individuals who view an activity as play will be more creative than those that view that same activity as work. In this study, 106 professional engineers and scientists were given the alternative uses test (AUT). At the conclusion of the test, the participants were asked to subjectively rate the playfulness of that activity on a work-play scale of 1-5. Using quantity of ideas as an indicator of creative potential on the AUT, there was a strong positive correlation (r2=.94) between creativity scores on the AUT and the playfulness ratings of the AUT. Specifically participants who viewed the activity as play (rating a 4 or 5) on average developed over twice as many ideas on the AUT than participants who viewed that activity as work (rating a 1). As data was available on number of patents awarded to each of these participants, we also found a moderate relationship between AUT scores and quantity of patents.