[Year 12 SofDev] Data Integrity: different between accuracy andcorrectness

Wed Sep 7 14:59:55 AEST 2016

Please come in. Sit down.
Don't step on the cat.
And don't take any of my cows. I've counted them.

Let me take your hand. Yes. I can see by your palm that you are troubled.
A loved one has died? No?

Ah, now I see.
You cannot tell the difference between *accuracy* and *correctness*.
There's a lot of that going around.

Let me consult my crystal ball...
I see someone called 'VCAA'. Your spouse? No? It's a strange name. Is it
Italian?
Ah. Now it all becomes clear. I can *see the future*.

<spooky voice>

   - *Prediction 1*: VCAA is *never* going to explain the difference
   between accuracy and correctness. Because they can't, in any sensible way.
   - *Prediction 2*: Instead, to avoid a sticky exam moment, VCAA will
   *never* directly examine students on accuracy vs correctness*.
   - *Prediction 3*: The next study design will quietly edit out the
   accuracy/correctness awkwardness.

</spooky voice>

Now, please cross my palm with silver before you leave the tent.

Madame Mark, the Mysterious.

* But I'd love to see them try.

On 3 September 2016 at 18:36, Tony Crewe <TonyCrewe at caulfieldgs.vic.edu.au>
wrote:

> It does not really matter we we all think (2c or otherwise), saying
> correct and accurate are the same is not helpful.
>
> The study design dot point on key knowledge ....
> "characteristics of data that has integrity, including accuracy,
> timeliness, reasonableness, authenticity, correctness"
>
> So we need to advise our students about these five characteristics.
> Can we get some clarification from vcaa about this?
> Potentially an Exam case study question could ask about different
> characteristics of data. I hope not.
>
> Tony Crewe
>
> On 3 Sep 2016, at 6:21 PM, "timmer at westnet.com.au" <timmer at westnet.com.au>
> wrote:
>
> Add another 2 cents to the pile.
> I tend to agree with Robert that in the context of data integrity
> 'correctness' and 'accuracy' are more or less synonymous, but they each do
> have a different feel to them. "The correctness of the data was called into
> question" versus "The accuracy of the data was called into question" -
> maybe it's just me, but 'correctness' has a more holistic feel to it, while
> 'accuracy' feels much more specific somehow. Hopefully students will never
> be asked to pin down the subtle distinction
> In light of the discussion so far, I can't resist this entry from a 1926
> Webster's Dictionary in my possession:
> "*Correct*, *Accurate*, *Exact*, *Precise*, *Nice* agree in the idea of
> conformity to standard, fact, or truth. *Correct*, the most colorless
> term, denotes scarcely more than freedom from fault or error, as judged by
> some (usually) conventional or acknowledged standard; as, *correct*
> dress, style, deportment; ... *Accurate* implies, more positively,
> conformity to fact or truth attained by the exercise of care; as, an
> *accurate* investigation, statement, observer. ... *Exact* emphasizes the
> strictness or rigor of the agreement, which neither exceeds nor falls short
> of the fact of standard; ... *Precise* stresses rather sharpness of
> definition or delimitation, or scrupulous exactness of conformity to the
> standard as often verges on excess; ... *Nice* implies still greater,
> occasionally excessive, fineness or delicacy of observation or
> discrimination ...
>
> Regards
> Robert T-A
>
>
> ----- Original Message -----
> From:
> "Year 12 Software Development Teachers' Mailing List" <
> sofdev at edulists.com.au>
>
> To:
> "Year 12 Software Development Teachers' Mailing List" <
> sofdev at edulists.com.au>
> Cc:
>
> Sent:
> Thu, 1 Sep 2016 22:02:36 +1000
> Subject:
> Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness
>
>
>
> PS - It is woth noting that most writing on data integrity refers to
> "accuracy and consistency" and does not mention "correctness"
>
> Robert Hind
> Ex Traralgon and Ashwood
> Retired
>
>
> -----Original Message-----
> From: Robert Hind [mailto:robert at yinnar.com <robert at yinnar.com>]
> Sent: Thursday, 1 September 2016 9:54 PM
> To: 'Year 12 Software Development Teachers' Mailing List'
> Subject: RE: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness
>
> Hi all, my 2c worth again - from the perspective of working with data and
> on
> database design since the early 90s.
>
> We are talking here about data integrity.
>
> We are not talking about the accuracy or precision of measurements in terms
> number of significant figures or decimal places.
> We are not talking about data formats, eg dd/mm/yyyy versus mm/dd/yyyy or
> yyyy/mm/dd
>
> Andrew's example of stating his height as 1.564334m IS a measurement
> "accurate" to 6 decimal places but it is not accurate/correct as a
> statement
> of his height.
>
> I still consider correctness and accuracy as being synonymous terms when
> talking about data integrity.
>
> Robert Hind
> Ex Traralgon and Ashwood
> Retired
>
>
> -----Original Message-----
> From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces@
> edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of Andrew Pate
> Sent: Thursday, 1 September 2016 9:10 PM
> To: sofdev at edulists.com.au
> Subject: Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness
>
> Hi all,
> I have spoken about accuracy in terms of precision.
>
> I could say I am about 1.8 metres tall. That is correct, but not accurate.
> I could say I am 1.564334 metres tall. That is accurate, but not correct.
> Each situation will require a different level of accuracy that is
> acceptable
> or expected.
> Can't think of a situation where accuracy is important but correctness not.
>
> Andrew Pate
> VCE Computing teacher
> Mentone Grammar
>
> -----Original Message-----
> From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces@
> edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of sofdev-request at edulists.com.au
> Sent: Thursday, 1 September 2016 7:11 PM
> To: sofdev at edulists.com.au
> Subject: sofdev Digest, Vol 138, Issue 7
>
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> Today's Topics:
>
> 1. Re: Data Integrity: different between accuracy
> andcorrectness? (Rattan, Kushum L)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 1 Sep 2016 09:11:17 +0000
> From: "Rattan, Kushum L" <rattan.kushum.l at edumail.vic.gov.au>
> Subject: Re: [Year 12 SofDev] Data Integrity: different between
> accuracy andcorrectness?
> To: "Year 12 Software Development Teachers' Mailing List"
> <sofdev at edulists.com.au>
> Message-ID:
>
> <8AD033B406E86F408A4144791802A3A0A823BDFA at EDUMBX03.education.vic.gov.au
> <8AD033B406E86F408A4144791802A3A0A823BDFA at edumbx03.education.vic.gov.au>>
>
> Content-Type: text/plain; charset="utf-8"
>
> My mobile no is same. I was in a meeting when you rang
>
> Kushum Rattan
> ICT Curriculum Area Leader
> VET Co-ordinator
> Gisborne Secondary College
> Phone: 03 54283691
> rattan.kushum.l at edumail.vic.gov.au<mailto:rattan.kushum.l@
> edumail.vic.gov.au <rattan.kushum.l at edumail.vic.gov.au>
> >
> [gsc banner 2]
>
> From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces@
> edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of David Dawson
> Sent: Thursday, 1 September 2016 3:38 PM
> To: Year 12 Software Development Teachers' Mailing List
> <sofdev at edulists.com.au>
> Subject: Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness?
>
> And I teach them that dates recorded in this format in a file-naming
> convention is both correct and accurate as the files self-sort by date.
> YYYYMMDD
>
> [logo]
>
>
> David Dawson | Head of Learning Technologies, Head of Design and Technology
> Wesley College Melbourne
> Tel: + 61 3 8102 6340 | Mob: + 61 425 718 147
> Email: david.dawson at wesleycollege.net<mailto:david.dawson@
> wesleycollege.net <david.dawson at wesleycollege.net>>
>
> 577 St Kilda Road, Melbourne, 3004, Victoria, Australia Visit our website
> www.w<www.wesleycollege.net>esleycollege.net<www.wesleycollege.net>
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>
>
> From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au
> <sofdev-bounces at edulists.com.au>>
> [mailto:sofdev-bounces at edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of Travis Parker
> Sent: Thursday, 1 September 2016 3:31 PM
> To: Year 12 Software Development Teachers' Mailing List
> Subject: Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness?
>
> Sorry I did mean the opposite! Big week.
>
> Try again??.
> I taught my kids that if you are asked for a date in DD/MM/YYY format in a
> program then whilst ?1st of September 2016? is accurate, writing 01/09/2016
> is correct.
>
>
>
> Travis Parker
> Timetabler
> The Knox School
>
> From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au
> <sofdev-bounces at edulists.com.au>>
> [mailto:sofdev-bounces at edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of Mark
> Sent: Thursday, 1 September 2016 2:40 PM
> To: Year 12 Software Development Teachers' Mailing List
> Subject: Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness?
>
> I'd say the opposite.
>
> I don't think this question is ever going to be answered until we have a
> plebiscite, a Royal Commission or at least a dance-off competition.
>
> Regards,
> Mark
>
> On 1 September 2016 at 14:17, Travis Parker
> <Travis.Parker at knox.vic.edu.au<mailto:Travis.Parker at knox.vic.edu.au
> <Travis.Parker at knox.vic.edu.au>>> wrote:
> I taught my kids that if you are asked for a date in DD/MM/YYY format in a
> program then whilst ?1st of September 2016? is technically correct, writing
> 01/09/2016 is accurate.
>
> Mistake???
>
>
>
> Travis Parker
> Timetabler
> The Knox School
>
> From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au
> <sofdev-bounces at edulists.com.au>>
> [mailto:sofdev-bounces at edulists.com.au <sofdev-bounces at edulists.com.au><
> mailto:sofdev-bounces at edulists.com.au <sofdev-bounces at edulists.com.au>
> >] On Behalf Of Robert Hind
> Sent: Thursday, 1 September 2016 1:32 PM
> To: 'Year 12 Software Development Teachers' Mailing List'
> Subject: Re: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness?
>
> I have read Mark's views on this
> http://vceit.com/wp/correctness-versus-accuracy/
>
> Don't think they helped :-)
>
>
> I think they are essentially synonymous:
> eg my phone number is 0477999111 is both accurate and correct.
>
> Robert Hind
> Ex Traralgon and Ashwood
> Retired
>
>
> ________________________________
> From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au
> <sofdev-bounces at edulists.com.au>>
> [mailto:sofdev-bounces at edulists.com.au <sofdev-bounces at edulists.com.au>]
> On Behalf Of Ben Hines
> Sent: Thursday, 1 September 2016 12:54 PM
> To: Year 12 Software Development Teachers' Mailing List
> Subject: [Year 12 SofDev] Data Integrity: different between accuracy
> andcorrectness?
> Hi all,
>
> As part of the five characteristics of data integrity we have both accuracy
> and correctness; how do we differentiate the two of these?
>
> Thanks
>
> Ben Hines
>
> Ben Hines
> Mathematics and ICT Teacher
> Senior Campus
> (03)5241 1577
>
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