On 21/01/2016 02:01, Rod Speed wrote:


"chris" wrote in message
...
On 20/01/2016 01:33, Rod Speed wrote:


"chris" wrote in message
...
On 19/01/2016 18:42, Rod Speed wrote:


"chris" wrote in message
...
On 19/01/2016 04:17, Lewis wrote:
In message
dhosting.com
Jack Black wrote:
Finally, after years of looking, they found proof that texting
causes
accidents!

You are very confused.

Overall, the hospitalization rate in those states declined by 7
percent
versus states with no bans, the researchers report in the American
Journal
of Public Health.

Global Warming prevents piracy. News at 11.

You're the one who's confused. The study mentioned is not based on
correlations, unlike the jokey (negative) correlation between Global
Warming and piracy (at sea) you're alluding to.

The study make several explicit regression models to test whether
different factors have an affect on car crash related
hospitalisations. They found that texting bans, handheld bans,
seatbelt laws and graduate licensing laws all had a measurable and
significant decrease in the hospitalisation rates.

Likewise high speed limits and illegal blood alcohol levels had
significant increases in hospitalisation rates.

Gas prices, per capita income and unemployment rates had no effect.

When gas prices didn’t, the entire 'analysis' is dubious because
that must have some effect on the traffic volume on the roads.
Yes, plenty of traffic like to and from work will continue anyway,
but some traffic is optional and even with travel to and from
work, they will be more car sharing and use of public transport
with the higher gas prices.

Possibly,

Absolutely certainly, you can see that in the stats.

Which stats?

The change in traffic volumes with the price of gas.

And they are shown where...?

but there was no difference between states that had a texting ban vs
those which didn't. Which is what was being measured. Any effect of
price was uniform between them.

You said gas prices had no effect.

In this study. Which was looking at the difference in hospitalisation
rates between states with or without bans on texting while driving.
Presumably fuel prices would change more or less in sync in all states

They don’t actually.


How so? Evidence?

and so would have no differential effect between the ban or no-ban
states.


regardless of whether they do or do not change in sync, according to the
study any changes in fuel price are not associated with changes in
hospitalisation rates between the ban vs no-ban states.