this experiment took place on a campus at the University of Leeds. The purpose of the experiment was to measure what the students’ spatially  thinking depended on by looking at these different characteristics. The results are as in the link I posted and the purpose of the experiment is to try to understand what their spatial thinking depends on. 

this is participants part : 128 out of 140 students enrolled in ELU0040 Academic Study Skills for STEM at the University of Leeds in 2022-2023 were successfully able to participate and submit their scores owing to unforeseen problems. The majority of participants were between the ages of 18 and 22, but some were under 18 and just a handful were above 22. The sample consisted of 80 males and 48 females, 11 of whom were categorised as left-handed, 113 as right-handed, and remaining four as ambidextrous.

https://planning.e-psychometrics.com/test/mr?ssid=1b93e65d-3b93-4491-b0a9-84d8c307f01f