[Yr11 Information Technology] A Monday Challenge.

[Fitzpatrick, Michael]

Like in maths; mark for correct answer but if not to the correct decimal places then lose a mark.
Or lose all marks sometimes if correct but not accurate.


From: yr11it-bounces at edulists.com.au [mailto:yr11it-bounces at edulists.com.au] On Behalf Of Mark
Sent: Monday, 7 December 2015 1:02 PM
To: Year 11 Information Technology Teachers' Mailing List <yr11it at edulists.com.au>
Subject: [Yr11 Information Technology] A Monday Challenge.

U1O3 KK5 - 'factors affecting the integrity of data, such as correctness, reasonableness and accuracy'

Your challenge for today is: Work out a way to explain the difference between "correctness" and "accuracy" to a year 11 student.  The prize is 50 brownie points.

Yes, I realise the terms are only given as examples in the study design, and are not made mandatory by the word 'including', but I'm interested if anyone can clearly tease out the difference between two terms usually considered synonymous by everyone except scientists.

The only thing I can suggest is that "accuracy" means "correctness" (free from error) but also has an whiff of 'precision' about it too...

e.g. storing Pi as "3.14" may be correct, but not as accurate as "3.14159"

Good luck.

--

Mark Kelly

mark at vceit.com<mailto:mark at vceit.com>
http://vceit.com
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