Search found 1888 matches

by Michael Farthing
Tue Jun 02, 2020 5:04 pm
Forum: General Chat
Topic: Some thoughts on anti-cheating systems
Replies: 196
Views: 3917

Re: Some thoughts on anti-cheating systems

As a university teacher I used to plot the distribution of exam marks and I very rarely got a normal distribution. My distributions more commonly resembled a two humped camel with maxima in the mark ranges 40-55 and 70-85. . The measurement of this camel hump property I was taught has both a name a...
by Michael Farthing
Tue Jun 02, 2020 10:37 am
Forum: General Chat
Topic: Some thoughts on anti-cheating systems
Replies: 196
Views: 3917

Re: Some thoughts on anti-cheating systems

As a matter of interest perhaps for those who have discussed whether a normal distribution can be expected in exam results I can say that that it cannot necessarily. I speak as an ex exam officer with a national exam board. Part of my job (pre GCSE) was to decide where grade boundaries should be dra...
by Michael Farthing
Fri May 29, 2020 8:25 pm
Forum: General Chat
Topic: Some thoughts on anti-cheating systems
Replies: 196
Views: 3917

Re: Some thoughts on anti-cheating systems

The mathematics is all spurious - mainly because it is not backed by any empirical evidence.
While an orgnisation refuses to justify how it got its evdence and expose its evidence to cross-examination there is miscarriage of justice. Full stop.
by Michael Farthing
Sat May 09, 2020 8:03 pm
Forum: ECF Matters
Topic: ECF Finance Meeting
Replies: 65
Views: 3828

Re: ECF Finance Meeting

can I join the group? You're already a member Adam, as are all Council members. You should also have received an email telling you to log on for the first time. If not, let me know and I'll send you a copy. Like Council meetings themselves, it is not public, but that does not mean members cannot sh...
by Michael Farthing
Sat May 09, 2020 7:40 pm
Forum: General Chat
Topic: Would You Pay Extra to Win Prize Money?
Replies: 48
Views: 6122

Re: Would You Pay Extra to Win Prize Money?

--And I'm still young! Welcome back into the fold Alan - you took your time after my prompt to you!

But this is not the first mention of you on this forum:

viewtopic.php?f=27&t=7791
by Michael Farthing
Fri May 08, 2020 9:27 am
Forum: 4NCL
Topic: 4NCL Online
Replies: 346
Views: 18428

Re: 4NCL Online

Richard, There is the famous story (amended here to make it on topic) that casts light on your thoughts: A chess player arrived at the gates of heaven and was welcomd by St Peter. "Do you have chess congresses in Heaven?" he enquired. "Oh indeed yes" replied St Peter. "What are they like?" enquired ...
by Michael Farthing
Tue May 05, 2020 3:53 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 346
Views: 18428

Re: 4NCL Online

In light of this thread can someone please explain to me how, exactly, someone accused falsely of cheating would prove their innocence? What evidence would it be possible for a person to submit to (successfully) counter the accusation? Are you really saying this? Are you saying an accused person ha...
by Michael Farthing
Mon May 04, 2020 1:36 pm
Forum: General Chat
Topic: Anti-cheating methodology
Replies: 16
Views: 1028

Re: Anti-cheating methodology

The calculation then proceeds along the lines that - if a player has a rating which leads to an expectation that he will play the 'best move' 50% of the time but he in fact plays the 'best move' 70% of the time - then, if that continues over a long enough period, he is almost certainly cheating. Th...
by Michael Farthing
Sat May 02, 2020 11:18 pm
Forum: ECF Matters
Topic: ECF Office Staff on Furlough
Replies: 38
Views: 3663

Re: ECF Office Staff on Furlough

<purple prose> Well I have represented this point of view, amongst others, as a representative of silver members on the ECF Council for several years. I still think that it is a valid point of view and it needs to be taken serously. But I cannot feel that way myself. I want to play chess. I want to ...
by Michael Farthing
Fri Apr 24, 2020 9:07 pm
Forum: Not Chess!
Topic: Plaskett and Woffinden's book on the "Who Wants to be a Millionaire?" Fraud
Replies: 127
Views: 17338

Re: Plaskett and Woffinden's book on the "Who Wants to be a Millionaire?" Fraud

"Based on the un-cross-examined evidence of a script writer who has presented an emtional interpretation of some real live events please decide the proper outcome of those real live events which you have not impartially observed"
by Michael Farthing
Sun Apr 19, 2020 1:28 pm
Forum: General Chat
Topic: Worrying times
Replies: 412
Views: 24416

Re: Worrying times

A couple of observations on the summary of the UnHerd interview. To achieve (Un?)Herd immunity at least 60% - and probably much more - of the population will need to have had the disease. That is approx 40 Million people. Even taking the given mortality rate of 0.1%, this would result in 40,000 dea...
by Michael Farthing
Sun Apr 19, 2020 8:45 am
Forum: General Chat
Topic: Worrying times
Replies: 412
Views: 24416

Re: Worrying times

A couple of observations on the summary of the UnHerd interview. The actual fatality rate of Covid-19 is the region of 0.1% At least 50% of the population of both the UK and Sweden will be shown to have already had the disease when mass antibody testing becomes available. To achieve (Un?)Herd immun...
by Michael Farthing
Thu Apr 16, 2020 9:36 pm
Forum: General Chat
Topic: Chess once we restart over the board
Replies: 131
Views: 10459

Re: Chess once we restart over the board

Who's the ECF?
by Michael Farthing
Wed Apr 15, 2020 10:46 am
Forum: Deaths & Obituaries
Topic: Richard A Collins 1944-2020
Replies: 5
Views: 1268

Re: Richard A Collins 1944-2020

This comes as a very sad shock. At first I didn't even recognise who was being talked about because in our league we always think of him as 'Dick' even in our team listings. A kind and gentle man whom I have played many times - usualy losing. As recently as late March he was still ready to play for ...
by Michael Farthing
Sat Apr 11, 2020 9:45 pm
Forum: Not Chess!
Topic: COVid19-What's wrong with UK?
Replies: 53
Views: 2647

Re: COVid19-What's wrong with UK?

yes