P values in your basketball stats

Home for all your discussion of basketball statistical analysis.
Post Reply
Snedecor
Posts: 18
Joined: Tue Aug 07, 2018 11:15 am

P values in your basketball stats

Post by Snedecor » Fri Mar 22, 2019 1:45 pm

Hi,

With the new number of ‘The American Statisticia’ treating about the use of pvalues I would like to know if is frequent or sometimes and when do you use pvalues, with high numbers of repeations like in NBA is possible to use pvalues in some cases.

What do you think?

Article link: https://tinyurl.com/y574d7jq

Regards

xkonk
Posts: 294
Joined: Fri Apr 15, 2011 12:37 am

Re: P values in your basketball stats

Post by xkonk » Sat Mar 23, 2019 3:37 pm

I use p values in my job because we're expected to but would much rather not. I'm not on top of basketball research as I used to be but I don't think p values are nearly as prominent there. And why would they? What hypothesis are you testing? If someone's RPM is above 0? I don't think that's an important or interesting question.

I do think the lack of description of variability is an issue in basketball. If someone runs an analysis about someone's rim protection ability or impact on pick and roll defense, I might see what percentile they are or the points per possession. But how tightly packed are players? If they reduce opponent points per possession by .1, is that a lot? What's the range? If it's a small range, how many players are in, say, .08 to .12? If it's a big range, maybe .02 to .18? A player at 95th percentile at rim protection is obviously near the top of the league but how different are they from 90th percentile, or 75th? I rarely see anything like that.

Snedecor
Posts: 18
Joined: Tue Aug 07, 2018 11:15 am

Re: P values in your basketball stats

Post by Snedecor » Mon Mar 25, 2019 9:26 pm

Maybe this is not usual, but for me make sense do some hypothesis contrasts with a group of players and another, or maybe can work to hired some players and compare to others, is pure statistics and maybe are not worthy. NBA have a lot of data per player and per team, tracking, and doing some analysis maybe is posible.

Post Reply