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01/30/2006 03:31:31 PM · #1 |
Originally posted by stdavidson:
Why, as a group, do we have an unwritten belief that the average DPC image has to be scored close to the arbitrary mathematical midpoint of 5.5(or below)? They are much better than that. School test scores in a range like that would be considered an abysmal failure. |
Perhaps because of the written rule, "Users should rate each and every photograph in the challenge on a scale of 1 to 10 (with "1" being a "bad" photo and a "10" being a "good" photo)." If 6 were a failing grade, then why would we need a scale that goes down to 1?
School test scores can always be graded on the curve.
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01/30/2006 03:20:53 PM · #2 |
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14
Looking at the 432 Challenges that have been held since Sept 2002 the averages are as follows:
Enteries 195
Highest Scores 7.341
Average Scores 5.295
Midrange Scores 5.259
Lowest Scores 3.177
Total Votes 50,334
Average # Votes 237
Total Comments 2572
Avg # Comments 14
Over the last 7 challenges things havent changed a lot
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01/30/2006 02:49:25 PM · #3 |
Originally posted by stdavidson:
Originally posted by Falc:
I reckon 5.2 is about the mid point for most challenges, but the mathematicians will be able to prove that 5.5 is THE point. |
Why, as a group, do we have an unwritten belief that the average DPC image has to be scored close to the arbitrary mathematical midpoint of 5.5(or below)? They are much better than that. School test scores in a range like that would be considered an abysmal failure.
And why, as a group, have we decided that even the best pictures by the most exceptional of amateur and professional photographers at this site should more often score below 7 than above it? Surely they are better than that. |
Your comparisons of dpc scores and school grades in this post and your earlier one are not valid. We are not all failing. To compare them you would need to equate the numbers something roughly like this:
8.0 thru 10.0 is an A
6.0 thru 7.99 is a B
4.0 thru 5.99 is a C
2.0 thru 3.99 is a D, and
anything below 2 is a failure.
Just like students, our grades tend to cluster around the mid point with only a few that stray far enough to be an A or a F.
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01/14/2006 06:31:01 PM · #4 |
1 + 10 = 11 /2 = 5.5
5.5 would be average score :-)
I like it = 6-9
Don't like it = 2-4
Offensive = 1
Masterpiece = 10
Belongs to a family album (not in public challenge) = 2-5
Black and whites with good tonal range = extra one point
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01/13/2006 08:38:36 PM · #5 |
Originally posted by Falc:
I reckon 5.2 is about the mid point for most challenges, but the mathematicians will be able to prove that 5.5 is THE point. |
Why, as a group, do we have an unwritten belief that the average DPC image has to be scored close to the arbitrary mathematical midpoint of 5.5(or below)? They are much better than that. School test scores in a range like that would be considered an abysmal failure.
And why, as a group, have we decided that even the best pictures by the most exceptional of amateur and professional photographers at this site should more often score below 7 than above it? Surely they are better than that.
Message edited by author 2006-01-13 20:39:22.
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01/13/2006 07:02:10 PM · #6 |
I've always been kind of been suprised that the "average" photo on DPC is below average.
Seeing the average for 2005 (5.2799), I don't feel so bad anymore: 9 challenges, 5.254918 (just below "average")
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01/13/2006 06:47:08 PM · #7 |
Originally posted by stdavidson:
Originally posted by southern_exposure:
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14 |
Compared to a standard school percentage grading scale here is how DPCers rate photographs:
Avg Score: 5.2593....... Average Grade: F
Avg Top Score: 7.3433... Average Blue Ribbon Grade: C (minus)
It is rare when a score gets an 8 and that only takes it to a low B range.
Out of the 10s of thousands of images scored at DPC not one has been rated an A.
We'd ream our kids if they came home with scores on tests and homework like that.
Conclusion:
DPCers grade harsh! |
Or maybe the REAL average is not 1-10 but 3-7 here. So what you really want to aspire to is not an un-attainable 10 but a blue-ribbon winning 7. Given that, isnt the real average exactly 5.00 ?
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01/13/2006 06:39:01 PM · #8 |
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01/13/2006 06:09:56 PM · #9 |
Originally posted by southern_exposure:
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14 |
Compared to a standard school percentage grading scale here is how DPCers rate photographs:
Avg Score: 5.2593....... Average Grade: F
Avg Top Score: 7.3433... Average Blue Ribbon Grade: C (minus)
It is rare when a score gets an 8 and that only takes it to a low B range.
Out of the 10s of thousands of images scored at DPC not one has been rated an A.
We'd ream our kids if they came home with scores on tests and homework like that.
Conclusion:
DPCers grade harsh!
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01/13/2006 06:01:17 PM · #10 |
| why is there a spike at 9.9? |
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01/13/2006 05:49:31 PM · #11 |
Last summer, I wrote a program to parse through the user profiles and analyze voting. The referenced graph shows the distribution of average vote by person at DPC:
The 4.9 - 5.2 range is where the action is. |
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01/13/2006 05:47:44 PM · #12 |
Avg Vote Received: 5.8131
almost there |
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01/13/2006 05:21:55 PM · #13 |
I still think the data is skewed though. You have a variable which never remains constant: people start at different times, leave altogether, etc. So you have the totals based on someone who has only 1 challenge vs someone who has 100+ challenges. It would be intersting to see the data compared against a "time on server" grid to be able to plot where a member "should" be based on number of challenges entered.
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01/13/2006 05:16:54 PM · #14 |
Originally posted by Bear_Music:
You might want to do this just for 2005; the site's seen an explosion of size and aprticipation since it started, so the early challenges are skewing the results I think?
R. |
Maybe for the high (and possibly low) score, but the average is close... ace calculated it (had it calculated) for 2005 - it is 5.282398 for 2005, v. 5.2941 for 2001-now
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01/13/2006 05:16:21 PM · #15 |
Originally posted by Bear_Music:
Originally posted by southern_exposure:
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14 |
You might want to do this just for 2005; the site's seen an explosion of size and aprticipation since it started, so the early challenges are skewing the results I think?
R. |
2005 challenges (134) Here is the Averages:
Avg Entries: 250
Avg High Score: 7.2940
Avg Score: 5.2799
Avg Midrange Score: 5.2470
Avg Lowest Score: 3.1994
Avg Votes per Entry: 282
Avg Comments per Entry: 13 |
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01/13/2006 05:03:38 PM · #16 |
Thats the average for 133 challenges not one (all challenges in 2005). Wouldn't that be the average for the site for 2005?
Originally posted by barndog:
Ok but thats just an average score for one challenge. For a true average of the typical score you need to average everyones scores from every challenge, looking at the high and low to find a median total member (participant) score. |
text |
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01/13/2006 05:01:59 PM · #17 |
Originally posted by southern_exposure:
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14 |
You might want to do this just for 2005; the site's seen an explosion of size and aprticipation since it started, so the early challenges are skewing the results I think?
R. |
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01/13/2006 04:58:47 PM · #18 |
Out of all challenges (425) Here is the Averages:
Avg Entries: 195
Avg High Score: 7.3433
Avg Score: 5.2941
Avg Midrange Score: 5.2593
Avg Lowest Score: 3.1749
Avg Votes per Entry: 236
Avg Comments per Entry: 14 |
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01/13/2006 04:53:17 PM · #19 |
My average received is: 6.0312 :-)
-danny |
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01/13/2006 04:40:43 PM · #20 |
Ok but thats just an average score for one challenge. For a true average of the typical score you need to average everyones scores from every challenge, looking at the high and low to find a median total member (participant) score.
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01/13/2006 04:15:22 PM · #21 |
Originally posted by ace flyman:
Ok, I'm board, so I had my admin. run a excel sheet on the average score for 2005. She came up with 133 challenges with an average score for the year of 5.282398. Well that makes me almost average right on the nose.
edit; typos, should had her respond, love being the boss. |
I love it, YOU were bored so you had someone else do it for you LOL :) |
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01/13/2006 04:04:13 PM · #22 |
Ok, I'm board, so I had my admin. run a excel sheet on the average score for 2005. She came up with 133 challenges with an average score for the year of 5.282398. Well that makes me almost average right on the nose.
edit; typos, should had her respond, love being the boss.
Message edited by author 2006-01-13 16:13:26. |
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01/13/2006 03:40:18 PM · #23 |
| I try to get all my entries over 6. I believe my photography is worth that much so i try to push my average up. Athough this site is not the best of place to get properly evaluated. |
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01/13/2006 03:31:51 PM · #24 |
Originally posted by Megatherian:
I'm not sure I agree that 5 would be the site average (although I admit I have no hard evidence for my theory)
The reason I think it would be lower than 5 is that it would seem to imply that in any given challenge there are just as many 10's given out as there are 1's
More people receive lower scores here than they do higher scores.The highest averaged score ever given out on the site is an 8.6 - the lowest is a 1.8.
If you were to average all of the "averaged scores" (the final results of a challenge) I believe the average score on the site would be a lot closer to 4. |
Good point, this is how I'd probably gauge it at.... |
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01/13/2006 03:28:40 PM · #25 |
I'm not sure I agree that 5 would be the site average (although I admit I have no hard evidence for my theory)
The reason I think it would be lower than 5 is that it would seem to imply that in any given challenge there are just as many 10's given out as there are 1's
More people receive lower scores here than they do higher scores.The highest averaged score ever given out on the site is an 8.6 - the lowest is a 1.8.
If you were to average all of the "averaged scores" (the final results of a challenge) I believe the average score on the site would be a lot closer to 4. |
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