Navigation Links
U-M study challenges notion that umpires call more strikes for pitchers of same race
Date:5/22/2013

ANN ARBORA University of Michigan study challenges previous research that suggests umpire discrimination exists in Major League Baseball.

The study, a collaboration between researchers at U-M and the universities of Illinois and Florida, looks deeper into the controversial argument over whether MLB umpires discriminate by calling more strikes for pitchers of the same race. It found little statistical evidence to support that claim, said Jason Winfree, associate professor of sport management at the U-M School of Kinesiology.

Winfree and co-authors Scott Tainsky of Illinois and Brian Mills of Florida, analyzed millions of pitches between 1997 and 2008 and ran the data through various statistical models. Their results suggest that findings of discrimination were questionable.

A draft of the earlier study that initially found evidence of discrimination was released in 2007 and published by the American Economic Review in 2011. National media reported on both the draft of the study and on its later publication.

In the U-M study, Winfree and his co-authors analyzed both their own data as well as that of the previously published study, but did not get consistent results when using different statistical methods and variables.

"Based on what we found, it's(discrimination) certainly not conclusive, and we could make an argument that there's actually reverse discrimination if you look only at averages," Winfree said. "Our point is (that) with something like this you want to look at the data a lot of different ways and see if you get a consistent result each time with each method. It's a pretty bold claim to say there is racial discrimination."

Winfree and colleagues found that the only specifications that suggested discrimination were when the analysis treated pitchers as completely separate players when pitching in stadiums where umpires were monitored. This seemed to drive much of the findings in the earlier study, they said.

The U-M study and others that look at discrimination in sports are significant not only for sports fans and franchises, but because it's very difficult to test for discrimination in most other occupations, Winfree said. However, because professional sports keep such detailed statistics, discrimination or lack of it is more quantifiable.

"This is a place where it's easy to test for discrimination, and if you find it here, it might be present in other work scenarios where you can't really test it," Winfree said.

The issue of discrimination among referees and umpires has raised debate in other sports as well. For instance, in 2010 the Quarterly Journal of Economics published a study that suggested racial bias among referees in the NBA.

The U-M study, "Further examination of potential discrimination among MLB umpires," appears online in the Journal of Sports Economics.


'/>"/>

Contact: Laura Bailey
baileylm@umich.edu
734-647-1848
University of Michigan
Source:Eurekalert

Related medicine news :

1. More Kids Getting Donor Organs, But Gaps Persist, Study Finds
2. Underactive Thyroid and Heart Failure a Bad Combination: Study
3. Study shows that insomnia may cause dysfunction in emotional brain circuitry
4. Abused Children at Risk for Obesity as Adults: Study
5. A pan-European study: Signs of motor disorders can appear years before disease manifestation
6. Study details genes that control whether tumors adapt or die when faced with p53 activating drugs
7. Overeating learned in infancy, study suggests
8. Study finds new pneumococcal vaccine appears to be as safe as previously used vaccine
9. Antidepressants May Be Helpful for Some Heart Patients: Study
10. Study finds COPD is over-diagnosed among uninsured patients
11. Parker Waichman LLP Comments on New Study Showing that MRI is Useful for Predicting Failure of Metal-on-Metal Hip Implants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/31/2016)... Miami, FL (PRWEB) , ... May 31, 2016 , ... ... the wellness industry, today released ten predictions on the future of wellness, travel, spa ... CEOs of top travel, spa and beauty companies to leading economists and researchers - ...
(Date:5/31/2016)... ... , ... Interest is on the rise for using the CRISPR-Cas9 system for ... RNAi hit validation. A key reason may be that high-throughput synthesis—combined with a proprietary ... (crRNA) collections in arrayed formats. , Arrayed crRNA screens have the ...
(Date:5/31/2016)... ... May 31, 2016 , ... Dr. Charles A. Ditta attained his Doctor ... in the class of 1986, where he graduated in the top ten percentile of ... in Livingston since 1989. He has been a member in good standing for thirty ...
(Date:5/30/2016)... (PRWEB) , ... May 30, 2016 , ... As the ... for their children and their efforts to keep their households lice free. , ... Hawaii are enacting new policies that keep kids in the classroom despite the fact ...
(Date:5/29/2016)... ... May 29, 2016 , ... Whole Health Supply is happy to ... has been available via Amazon.com. This new style of nail clipper has a wider ... opening is approximately 4mm and the actual handle is 2.5mm thick to accommodate the ...
Breaking Medicine News(10 mins):
(Date:5/26/2016)... , May 26, 2016 ... With Both Cost Savings and Overall Decreased ... (LSE: BTG), an international specialist healthcare company, has ... the 21st Annual Meeting of ISPOR (International Society ... of hepatocellular carcinoma (HCC) using yttrium-90 glass microspheres ...
(Date:5/25/2016)... May 25,2016 FDA 510(k) ... Cellvizio platform for urological and surgical applications ... inventor of Cellvizio®, the multidisciplinary confocal laser endomicroscopy ... in the US with the 12 th ... Administration (FDA). This new FDA clearance covers Confocal ...
(Date:5/25/2016)... Germany and GERMANTOWN, Maryland , ... QGEN ; Frankfurt Prime Standard: QIA) today announced ... agreement with Therawis Diagnostics GmbH to develop and commercialize predictive ... and market PITX2 as a marker to predict effectiveness of ... patients. "We are pleased to partner with Therawis, ...
Breaking Medicine Technology: