2020 Solon HS Invitational

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peterhall
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Re: 2020 Solon HS Invitational

Post by peterhall » February 1st, 2020, 4:59 pm

Any word on raw scores?

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Re: 2020 Solon HS Invitational

Post by sciolyperson1 » February 1st, 2020, 5:07 pm

Bdirb wrote:
February 1st, 2020, 4:39 pm
sciolyperson1 wrote:
February 1st, 2020, 4:05 pm
https://docs.google.com/spreadsheets/d/ ... edit#gid=0

Solon Superscored.
What's up with the 323 for Chattahoochee Exp?
Fixed.
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Re: 2020 Solon HS Invitational

Post by ChimpLopez » February 1st, 2020, 5:45 pm

I mean Solon is notorious for difficult tests, so here’s my take:

Fossils(2): This was a GREAT test. Lots of questions per station, hard identification, and very fast paced. I thought that 3 mins per station was just the right amount of time to finish a station, but not have any time left at the station. I really enjoyed how challenging it was and there is definitely a lot to learn from a test like this. 10/10

Dynamic(9): I’m not the most experienced in Dynamic planet, but the test seemed fair and well made. It wasn’t too easy or too complicated, and we were able to answer all of the questions with some certainty. 8/10

Ornithology(4): this was an amazingly made test as well. They included calls, which is always fun, and the 2.5 mins per station with lots of questions per station made teams not only identify 3-4 specimens per station, but answer questions on them in a very short amount of time, which always keeps everyone on their toes. 9/10

Protein(18): Like Dynamic, I’m not the most experienced in PM. But in my opinion, the test portion was a little short, but asked fair and on topic questions. 7/10

Overall(4): Superbly run invy, all the supervisors were kind and fair and I had a great time. I also really like all the pre-awards activities like the basketball tourney and smash bro’s. Tough competition and difficult tests definitely made it worth the long drive. 10/10
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Re: 2020 Solon HS Invitational

Post by nicholasmaurer » February 1st, 2020, 9:04 pm

peterhall wrote:
February 1st, 2020, 4:59 pm
Any word on raw scores?
Raw scores will be released with the tests to all participating teams within the next 24-72 hours.
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Re: 2020 Solon HS Invitational

Post by windu34 » February 2nd, 2020, 2:02 am

Circuit Lab C
Hey all, I was the ES for circuit lab and just wanted to provide some comments and data to help all of you in your future preparations.
Written Exam
I think this written exam is one of the easier exams Asher and I have written this season and the scores reflected that. I noticed a lot of teams not prioritizing problems well - problems like the double delta-wye transformation problem can take a lot of time if you feel like you have to draw out the circuit after each transformation and may not be worth your time given the number of points the problem is worth. A few teams nailed the circuit analysis and op amp questions and got nearly all of them correct - this really helped their scores. The majority of teams struggled. I would highly recommend find electrical engineering circuit textbooks online and doing practice problems for independent/dependent source problems, op-amps, and transistor circuits. Most circuit analysis is just understanding kirchhoff's laws and practicing applying them to new problems until its second nature. This can pay large dividends on analysis-heavy exams where your massive 6-inch binder simply won't help you.
Labs
I designed Lab 1 to be as easy as possible just to see how many teams would be able to get good scores (>40 out of 47). I think out of the 67 teams that ended up competing, we only saw 10-15 teams score well on this lab and it was a good differentiating factor. Given how common wheatstone bridge problems are, I was really surprised to see these low scores and it has me rethinking the difficulty of labs in general. I was incredibly surprised by the number of teams that put the measured value of the variable resistor as WAY different than the theoretical value. If you (correctly) calculated 5k, shouldn't you be concerned when your measured value is 2.8k? I did this lab myself the night before and measured 5.09k so I had trouble giving students the benefit of the doubt that they actually balanced the circuit and got 2.8k for the variable resistor. I think in the future, it would have been better to have the students demonstrate that the circuit is balanced (by showing a proctor a voltmeter reading across the bridge resistor) and then having the students pull of the trimpot and measure the resistance straight from the pins.
Lab 2 was apparently impossible (other than deriving the equation, which a good 10-15 teams seemed to be able to do just fine). I wasnt sure how "obscure" R-2R ladders were to competitors - as it turns out, most have never heard of them. I think this concept would have been better tested if I had provided prebuilt R-2R ladders and asked questions that required analysis from the teams.

Stats given (Exam out of 333 pts):
Mean: 78.5
Median: 61.5
Std Dev: 48.7
Test and Answer Key
Graphs_Solon.PNG
Graphs_Solon.PNG (16.08 KiB) Viewed 1633 times
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ScottMaurer19
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Re: 2020 Solon HS Invitational

Post by ScottMaurer19 » February 2nd, 2020, 9:21 pm

I'll copy Windu and post the graphs of the score distributions. Generally, people said the test was "easier" than last year and I would agree that in terms of time crunch this was true. However, the ID and questions were harder in my opinion and the raw scores appear to agree. The biggest thing that students lost points on for the sections I graded was not following directions by answering with the full answer choice instead of the letter. For a lot of teams this meant a loss of about 5 points at a single station.

For those of you who took it, thoughts on the station where you IDed based on description?

Link to the score graphs:
https://drive.google.com/open?id=15mo3t ... LRizuBWWxc
ChimpLopez wrote:
February 1st, 2020, 5:45 pm
Fossils(2): This was a GREAT test. Lots of questions per station, hard identification, and very fast paced. I thought that 3 mins per station was just the right amount of time to finish a station, but not have any time left at the station. I really enjoyed how challenging it was and there is definitely a lot to learn from a test like this. 10/10
Glad you liked it :D
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2018 (r/s/n):
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Mission: 1/1/3
WS: 4/1/10

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Re: 2020 Solon HS Invitational

Post by GoldenKnight1 » February 3rd, 2020, 10:12 am

Codebusters Results:

Link to the score graphs:
https://docs.google.com/document/d/1fiH ... sp=sharing

Time Bonus stats:
36 of the 67 teams that took the test got the time bonus:
Min: solved in 2:01
Max: solved in 9:27
Mean: 5:22
Median 5:02
STD: 1:47

Overall results:
Without the bonus the test was worth 4,740 pts. If a team had no time bonus but got the max test score they would have ranked 12th overall.
Out of 67 teams that took the test:
Min: 0 (two of these)
Max: 6,259
Mean: 2,469
Median 2,100
STD: 1,774

No team got all 17 questions correct. Many of the top teams got 13-15 of the 17 correct. Of those top teams they generally got 2 or more of the following 5 wrong:
the Baconian (word type)
Hill Cipher (Decoding)
Hill Cipher (Encoding)
Aristocrat with errors (no hint)
Xenocrypt

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MoMoney$$$;)0)
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Re: 2020 Solon HS Invitational

Post by MoMoney$$$;)0) » February 3rd, 2020, 2:27 pm

Overall Results can Be found Here For Division C:
https://app.avogadro.ws/invitational/so ... ational-c/

Also, any word on division B results?
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Re: 2020 Solon HS Invitational

Post by xiangyu » February 3rd, 2020, 6:37 pm

Will the tests be released for public access?
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Re: 2020 Solon HS Invitational

Post by Mr.Epithelium » February 3rd, 2020, 8:49 pm

Hi all! Will tests and medals be mailed to teams who did not stay behind for awards?
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