A new research paper is available on ResearchGate:
https://www.researchgate.net/publicatio ... th_America
Abstract
A comparative study was performed that included the analysis of demographic and competitive rating data for boys’ and girls’ interscholastic high school ice hockey teams located in North America. A composite rating profile was generated using SportsoftTM windows-based software (least-squares method) that reduced the raw game scores of over 114,000 unique games played by 8,635 boys’ and girls’ teams in both the United States and Canada between the ages of 13 to 21. The least-square adjustment results in 105,430 degrees of freedom (DOFs). Individual male and female rating profiles for each United States state high school league were extracted, tabulated, and trend lines plotted and analyzed. State rating profiles were grouped by region and comparative graphs were plotted. Rating profiles were generated for Girls’ HS leagues and compared to both corresponding boys’ HS varsity teams and boys’ Bantam feeder teams where applicable. It was determined that on average the boys’ Bantam (ages 13 & 14 years old) teams had a 4.8 goal advantage over their corresponding girls' varsity HS (ages 15 to 18 years old) teams, and the boys’ varsity HS (ages 15 to 18 years old) teams had a 13.4 goal advantage over the girls' varsity team. The predicted increase of 8.6 goals per game, ie. the approximate predicted winning margins from 5 to 13 goals, equates to a 160% advantage increase that the teams composed of genetic males who have undergone puberty have over comparably aged genetic female teams.
Enjoy your summer,
- Doc
A post-Covid-19 Survey of boys and girls interscholastic high school hockey in North America.
Moderators: Mitch Hawker, east hockey, karl(east)
Re: A post-Covid-19 Survey of boys and girls interscholastic high school hockey in North America.
Admittedly, I did not read the entire link.
That said I think participation numbers would be a more relevant study. Also different locations had different Covid restrictions. That would affect the statistics. For example Iowa played high school and legion baseball in 2020, most states did not. On aggregate good Iowa baseball players went over the National mean on most scouting metrics. Others went under. The sample size was clearly affected.
It is an interesting topic and one that I will devote more time to.
That said I think participation numbers would be a more relevant study. Also different locations had different Covid restrictions. That would affect the statistics. For example Iowa played high school and legion baseball in 2020, most states did not. On aggregate good Iowa baseball players went over the National mean on most scouting metrics. Others went under. The sample size was clearly affected.
It is an interesting topic and one that I will devote more time to.
Re: A post-Covid-19 Survey of boys and girls interscholastic high school hockey in North America.
One factor that I did not account for, and would be very difficult to assess is what effect Boys HS players who leave HS programs early (to go to T1 Juniors or the USNDP) have on the overall ratings of the MHSHL. Intuitively, one would think that it would lower the curve profiles, thus the value for the AGMP would be slightly "under-reported" . Just a thought.