[Informatics] Secondary data

Wed Dec 7 17:43:09 AEDT 2016

Hi, primary and secondary colleagues (you can argue amongst yourselves who
is whom)

It may be wise to look at VCAA's take on primary/secondary data.
I refer to the 2016 Informatics exam, question C2.

It seems to be implying that home-grown data is primary.
External (e.g. online) data from other providers is secondary.

I'm out of here.
(Mic drop)

Mark

On 7 December 2016 at 12:19, Garth, Lucas A <
garth.lucas.a at edumail.vic.gov.au> wrote:

> Hi Heath and co…
>
>
>
> I’d agree if you are actually getting the *raw data* – but it can’t be a
> blanket case for BOM or (more specifically) ABS information on their
> website – e.g. telling students that any ABS data is primary will be
> interpreted as “go to the ABS page and anything under that sub-domain is OK
> as primary data … woo hoo”
>
>
>
> There were a number of SAT topics that could easily have replicated
> something very similar to the type of analysis shown in the URL below:
>
>
>
> *http://www.abs.gov.au/ausstats/abs@.nsf/mf/6227.0
> <http://www.abs.gov.au/ausstats/abs@.nsf/mf/6227.0>*
>
>
>
> Being summary data, as Heath rightly said, this page’s information would
> be inadmissible as a primary source, and on shaky ground as a secondary
> source unless to provide broad data to help with the framing of a
> hypothesis.
>
>
>
> Lucas
>
>
>
> *From:* informatics-bounces at edulists.com.au [mailto:informatics-bounces@
> edulists.com.au] *On Behalf Of *Matheson, Heath A
> *Sent:* Wednesday, 7 December 2016 11:11 AM
>
> *To:* Year 12 VCE Informatics Teachers' Mailing List
> *Subject:* Re: [Informatics] Secondary data
>
>
>
> I had a chat with Paula and some other gurus about this the other day.
>
> Mark you are right expect the SAT always uses the term “primary data *sources”
> * which to me is confusing.
>
>
>
> We came to the conclusion that primary data sources are where you find
> raw, unprocessed data, like BOM hourly rainfall or temperature
> observations. You don’t have to get a rain gauge out to have a primary data
> source. Of course they can be where you measure it yourself as well. (I
> would call that primary data collection)
>
>
>
> Secondary data sources are where you find processed data, like averages,
> or opinions or YouTube clips on your topic.
>
>
>
> Cheers,
>
> Heath
>
>
>
>
>
>
>
> *From:* informatics-bounces at edulists.com.au [mailto:informatics-bounces@
> edulists.com.au <informatics-bounces at edulists.com.au>] *On Behalf Of *Mark
> *Sent:* Tuesday, 6 December 2016 10:17 PM
> *To:* Year 12 VCE Informatics Teachers' Mailing List
> *Subject:* Re: [Informatics] Secondary data
>
>
>
> Hi Michael.
>
>
>
> OK. Re-reading your original post (seven months later) makes me realise
> that I missed your point entirely.
>
>
>
> *Secondary* data is created by people other than the researcher
> (regardless of its format - e.g. websites, infographics, other research.)
>
>
>
> *Primary* data is original : designed, gathered, coded and interpreted by
> the researcher for a specific, tailored purpose.
>
>
>
> Data or information gathered from *other* people's efforts is secondary -
> even if it *is* raw data. You, the user, may have no idea what sorts of
> loaded or leading questions were asked to gather that raw data, how the
> sample respondents were selectively chosen, or how the data were validated,
> fudged, or cherry-picked to prove a point. Data collected by someone else
> may be 'raw' but it does not mean it is authentic, genuine, accurate,
> complete, unbiased, or trustworthy.
>
>
>
> Also - for example - do you count someone else's calculated * average* as
> "raw data" or "information"?
>
> Any processing - even a simple 'average' - processes raw data into summary
> information - and we all know there are *three* different types of
> statistical average that can significantly and deliberately skew raw data
> into information that is convenient for the researcher.
>
>
>
> In short...
>
>
>
> - If *you, the researcher* did not do the interviews or write and conduct
> the surveys, you are using *secondary* data.
>
> - To collect *primary data*, one has to use one's own original surveys,
> questionnaires, observation, sensors, etc.**
>
>
>
> My 1.8 cents' worth (end-of-year sale! I have lots more unsold advice
> going cheaply! Enquire now! Beat the new year price rises!)
>
>
>
> I'd be happy to hear of differing interpretations of key knowledge.
>
> Classes have basically finished.
>
> You and I have time for a five minute argument
> <https://www.youtube.com/watch?v=kQFKtI6gn9Y>*.
>
>
>
> Mark
>
>
>
> * This link is dedicated to a good friend of mine on this list who
> confesses that she does not understand Monty Python.
> I ask you all to wish the poor lass well in her recovery. I fear that she
> may not even know the bandwidth of African or even European Swallows.
>
>
>
> ** This is where it gets a bit murky. One might well argue that you
> can use secondary data to generate new and original primary data for a new
> purpose. For example, summarising 100 years of death notices in newspapers
> to track average life expectancies over time. The old newspapers were
> secondary sources, but when used their information is used to derive new
> and original data for a new purpose, they would be considered primary
> sources.
>
>
>
> OK. It's not as black and white as most students hope it will be.
>
> Let's just tell them that primary data = home-grown survey, questionnaire,
> observation.
> Secondary data is data from everywhere else.
>
>
>
> Room 12A is free.
>
>
>
> On 20 May 2016 at 09:27, Poke, Michael C <poke.michael.c at edumail.vic.
> gov.au> wrote:
>
>
>
>
>
>
>
>
>
> Hi all,
>
> Forgive me if this has already been discussed, but just wanting to check,
> can secondary data include information from websites such as infographics,
> findings from other research, quotable quotes, or does it have to be
> entirely made up of raw,
>
> unprocessed data?  Sorry for posting what seems like a amateurish question.
>
>
>
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>
>
> Cheers,
>
>
>
> Michael
>
>
>
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>
>
>
> *Michael Poke*
>
>
>
>
>
> Senior Years ICT Teacher
>
>
>
> Senior Years Digital Learning Leader
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>
> *Manor Lakes P-12 College*
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>
> *2-50 Minindee Road*
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>
> *Wyndham Vale Victoria 3024*
>
>
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> *poke.michael.c at edumail.vic.gov.au <poke.michael.c at edumail.vic.gov.au>*
>
>
>
> *P.(03)97414202  F.(03)97411420*
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> *Google+: **bit.ly/PokeGoogle* <http://bit.ly/PokeGoogle>
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> --
>
>
>
> Mark Kelly
>
>
>
> mark at vceit.com
>
> http://vceit.com
>
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>
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-- 

Mark Kelly

mark at vceit.com
http://vceit.com

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