[ARC5] [Milsurplus] I Must Have Lost My Mind

[Bill Cromwell]

Hi,

I have seen that the light at the end of the tunnel is an oncoming 
train! We don't know when it will get to us. Recently I have noticed the 
the ground trembling a little. But it's business as usual:)

73,

Bill  KU8H

On 8/14/19 8:11 AM, Bob wrote:
> Brian.  Good stuff.   I especially liked, agreed with and followed your 
> sage advice to have another beer!  Tasted great and numbed the sobering 
> effect that at 77 YOA I too am at the nadir (AKA, over the hill and 
> picking up speed)!
> 
> 73 to all.
> K5INW, Bob
> 
> 
> On Wed, Aug 14, 2019 at 1:58 AM Brian Clarke 
> <brianclarke01 at optusnet.com.au <mailto:brianclarke01 at optusnet.com.au>> 
> wrote:
> 
>     Hello Mike,____
> 
>     __ __
> 
>     I wouldn’t read anything of value into this study. It was of 2450
>     residents of the USA. Say we take the population of the USA as 245
>     million, then the sample size is 0.1%. If we accept the population
>     of the world is about 7.7 billion, this sample falls to 0.00003%.
>     Further, the researchers have chosen equal size samples for each age
>     cohort, except two – 80 to 84-year olds and 85 to 89-year olds. But
>     any smart person knows that the age-specific distribution of
>     population is not as per this sampling, nor was there any comment on
>     age-specific population distribution. Further, there was no check on
>     the a priori language skills of, or relevance of the cognitive tasks
>     posed to the participants in the various age cohorts, or in samples
>     A, B and C. Luckily, the study reported is only nosological and does
>     not posit any causal variables. Though the graphs are presented in
>     the classical independent variable along the horizontal axis and
>     dependent variable along the vertical axis style, no scientist would
>     consider age alone to be a causal variable.____
> 
>     __ __
> 
>     I clicked on the apparent link to find out about the authors – Nada!____
> 
>     __ __
> 
>     My conclusion is that the paper was part of the ‘publish-or-perish’
>     economic mantra dogging American universities, and is not even worth
>     using for hypothesis generation.____
> 
>     __ __
> 
>     Further, you have made the classic error so frequently found in 1^st
>     and 2^nd -year psychology students of thinking that the results
>     reported in the paper actually apply to you. Like you, I am also 78
>     years of age, and I’m quite certain this paper is not worth using in
>     the smallest room in the house.____
> 
>     __ __
> 
>     In case you’re wondering about the source of my criticisms, I used
>     to teach this kind of stuff at university, but at the same time I
>     filled the students up with research methodology criteria so they
>     could evaluative such stuff for themselves.____
> 
>     __ __
> 
>     My suggestion? Have another beer and ignore the paper.____
> 
>     __ __
> 
>     73 de Brian, VK2GCE____
> 
>     __ __
> 
>     *On*Tuesday, 13 August 2019 10:37 PM, you said:____
> 
>     __ __
> 
>     <snip>
> 
>     I have to admit that I am not as careful as I once was.  I chalk it
>     up to this curve I saw in an article by the National Institutes of
>     Health, indirectly measuring memory and concentration throughout a
>     person's lifetime, by means of mass vocabulary testing over
>     decades.  I note that with this past birthday I have reached the
>     nadir of the curve at age 78.  The good news is that it appears to
>     rise again through the mid-80s.
> 
>     <graph edited to save bandwidth>____
> 
> 
>     Unfortunately, this curve is simply raw data - no analysis is
>     offered other than providing data for further development.  For
>     those interested in details, the article (entitled /_When does
>     cognitive functioning peak? The asynchronous rise and fall of
>     different cognitive abilities across the lifespan_/), is at
>     https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4441622/
> 
>     - Mike  KC4TOS____
> 
>     __ __
> 
>     __ __
> 
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-- 
bark less - wag more