You are not signed in (Login or Join Free)   |   Help
Sploofus Trivia
Trivia GamesCommunityLeaderboardsTournaments
MySploofus
You are here:  Home  >>  Chat Forums  >>  Newbie's Corner  >>  View Chat Message

View Chat Message



Pages:  1    


smaug
Smaug  (Level: 141.2 - Posts: 2772)
Wed, 27th Jun '07 12:34 AM

NEWBIE WITH PERCENTILE QUESTION


Hi, far be it for me to stir trouble, but when I went to "My Trivia Quiz History" it says the following:


"As with all percentile statistics a lower number is desirable, i.e. your accuracy is in the 5th percentile (which would be excellent)."

Isn't this precisely backward?

Thanks


bigbird
Bigbird  (Level: 239.6 - Posts: 3302)
Wed, 27th Jun '07 10:14 PM

I know zip about statistics, but when I go to that page, I see my AP for quizzes in which I got 100% is 0.0. And, you know what? I've been an inmate of this island for a year and a half, and I don't think I ever noticed that page before! All the statistics that really matter will show up in your command center. Don't sweat them - just enjoy the site. Welcome!

Alice

rael61
Rael61  (Level: 139.5 - Posts: 68)
Thu, 28th Jun '07 4:18 PM

I interpret that statistic to be something akin to being in top 5%, for example, of your class by GPA. It's just a matter of from which direction you look at the scale.

smaug
Smaug  (Level: 141.2 - Posts: 2772)
Sat, 30th Jun '07 8:52 AM


.I interpret that statistic to be something akin to being in top 5%, for example, of your class by GPA. It's just a matter of from which direction you look at the scale.


Well, not to be a snot, but it is a matter of the definition of percentile, which is fairly unambigious.

missashlee
Missashlee  (Level: 125.6 - Posts: 543)
Sat, 30th Jun '07 6:38 PM

Welcome, Smaug! And WTG jumping in as Platinum!

There is additional explanation on the same page to which you refer that makes interpretation of the number in the table clear:

"Your percentiles can also be construed as the
'percentage of Sploofus users that did better.'"


As you will find, especially if you have had some time to peruse the posts in Salty Dog, none of us here are very particular about precise definitions and grammar ...




smaug
Smaug  (Level: 141.2 - Posts: 2772)
Wed, 4th Jul '07 10:41 AM

Thank you for your response, Missashlee,

Here is the Websters definition:
=========================
Specialty Definition: Percentile rank

"The percentile rank of a score is the percentage of scores in its frequency distribution which are lower. For example, a test score which is greater than 90% of the scores of people taking the test is said to be at the 90th percentile."
=========================

The example you cite says just the opposite.

As a parent who is spending an inordinate amount of time reading standardized test scores for college admissions, I can assure you that being in the 5th percentile is not a good thing.

Even if in some stilted exception the opposite is allowed, which I do not believe to be the case, your text states: ""As with all percentile statistics a lower number is desirable,...", which is beyond a doubt, 100 percent wrong.

Happy 4th of July,

Smaug






missashlee
Missashlee  (Level: 125.6 - Posts: 543)
Wed, 4th Jul '07 2:22 PM

You’re welcome, Smaug!

And I can’t take credit for the text, since I copied it directly off the Sploofus Web page under “View Your Trivia Quiz History”:

http://www.sploofus.com/login_quiz_taken.sp

I'm just another player, too.

With all it's foibles, Sploofus is a fun site!


Pages:  1    



Copyright © 2003-2016 Sploofus Holdings LLC.  All rights reserved.
Legal Notice & Privacy Statement  |  Link to Sploofus