A New York Times lesson on how to bend statistics.

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AlanM
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A New York Times lesson on how to bend statistics.

Post by AlanM »

This story in the New York Times, In Missouri, Fewer Gun Restrictions and More Gun Killings, seems to prove, or at least indicate, the making it easier for law abiding citizens to acquire and carry firearms has caused a rise in murders.

Case in point:
Research by Daniel Webster, the director of the Johns Hopkins Center for Gun Policy and Research, found that in the first six years after the state repealed the requirement for comprehensive background checks and purchase permits, the gun homicide rate rose by 16 percent, compared with the six years before. In contrast, the national rate declined by 11 percent over the same period. After Professor Webster controlled for poverty and other factors that could influence the homicide rate, and took into account homicide rates in other states, the result was slightly higher, rising by 18 percent in Missouri.
If the murder rate were about 6 per 100,000 in one year and 7 the next year, that's a rise of 16%.
Using percentages to indicate annual changes can be highly deceptive when looking at small numbers.

Let's take a look at Missouri's annual Forcible Murder Rate per 100,000 over the last 54 years.

Code: Select all

Missouri Forcible Murder Rate per 100,000 (1960 – 2014)
From: http://www.disastercenter.com/crime/mocrimn.htm

1960    4.4     1970    10.7    1980    11.1    1990    8.8     2000    6.2     2010    7.0
1961    5.1     1971    8.9     1981    10.4    1991    10.5    2001    6.6     2011    6.1
1962    5.5     1972    8.3     1982    9.7     1992    10.5    2002    5.8     2012    6.5
1963    5.2     1973    9.0     1983    8.1     1993    11.3    2003    5.1     2013    6.1
1964    5.4     1974    9.8     1984    7.1     1994    10.5    2004    6.1     2014    6.6
1965    6.7     1975    10.6    1985    8.1     1995    8.8     2005    6.9     
1966    5.4     1976    9.3     1986    9.2     1996    8.1     2006    6.3     
1967    7.3     1977    9.6     1987    8.3     1997    7.9     2007    6.5     
1968    8.8     1978    10.4    1988    8.0     1998    7.3     2008    7.7     
1969    10.4    1979    11.2    1989    7.9     1999    6.6     2009    6.5     
 
Let's look at the national murder rate compared to Missouri (1994 - 2013) (years national FBI data are available)

Code: Select all

Year    National    Missouri    Difference
1994       9.0        10.5         1.5
1995       8.2        8.8          0.6
1996       7.4        8.1          0.7
1997       6.8        7.9          1.1
1998       6.3        7.3          1.0
1999       5.7        6.6          0.9
2000       5.5        6.2          0.7
2001       5.6        6.6          1.0
2002       5.6        5.8          0.2
2003       5.7        5.1         -0.6
2004       5.5        6.1          0.6
2005       5.6        6.9          1.3
2006       5.8        6.3          0.5
2007       5.7        6.5          0.8
2008       5.4        7.7          2.3
2009       5.0        6.5          1.5
2010       4.8        7.0          2.2
2011       4.7        6.1          1.4
2012       4.7        6.5          1.8
2013       4.5        6.1          1.6
Note that in only one year, 2003, was the Missouri murder rate LESS than the national rate. All other years Missouri's was higher.
Is there any doubt WHY Missouri is being used to vilify all US gun owners?
For some reason Missouri has CONSISTENTLY had a higher murder rate than the national average.

Also I haven't, as yet, examined data from other states but I can tell you that comparing information to averages can be very misleading to many people.

For example:
Let's look at a teacher who has a class of ten students.
The teacher gives the class a 100 question test.
Nine students get grades of 100% and one student misses one question and gets a grade of 99%.
All students are given an A for a grade.
The average grade for the class is 99.9% and 9 students are above average.
It could just as easily been the other way with all getting As and nine students being BELOW average.

I really don't know what point I'm trying to make with this thread other than a warning to be very aware that the same numbers can be presented in many ways to prove (or at least imply) just about anything you want them to.
AlanM
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WRW
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Re: A New York Times lesson on how to bend statistics.

Post by WRW »

So, since 1993 Missouri has almost, but not quite, kept up with the REDUCTION in forcible murder rates nationwide (I don't know why this is not limited to firearm related murders, but...), having gone down 4.4/100,000 versus 4.5/100,000 for the rest of the nation.

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Re: A New York Times lesson on how to bend statistics.

Post by WRW »

That's in spite of the increase of firearms.

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Re: A New York Times lesson on how to bend statistics.

Post by WRW »

And da prez used this lie in his speech today.

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Re: A New York Times lesson on how to bend statistics.

Post by MarcSpaz »

What I find interesting is they say the national rate is declining.... well, a change that occurred over their same sample time period is, on a national level gun ownership has gone up, restrictive gun laws have been repealed, and we have increased to 40 "Right to Carry" states.

So, the real question is, what the hell is wrong with the NY Times?
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