Navigation Links
Troubled children hurt peers' test scores, behavior

Troubled children hurt their classmates' math and reading scores and worsen their behavior, according to new research by economists at the University of California, Davis, and University of Pittsburgh.

The study, "Externalities in the Classroom: How Children Exposed to Domestic Violence Affect Everyone's Kids," was published this month by the National Bureau of Economic Research and is available online at

Scott Carrell, an assistant professor of economics at UC Davis, and co-author Mark Hoekstra, an assistant professor of economics at the University of Pittsburgh, cross-referenced standardized test results and school disciplinary records with court restraining order petitions filed in domestic violence cases for more than 40,000 students enrolled in public elementary schools in Florida's Alachua County for the years 1995 through 2003.

The researchers linked domestic violence cases to 4.6 percent of the elementary school students in their sample. These children scored nearly 4 percentile points lower on standardized reading and math scores than their peers whose parents were not involved in domestic violence cases. (A percentile score reflects the percentage of scores that fall below it; a student who scores in the 51st percentile on a test, for example, has scored higher than 51 percent of all students who took that test.) In addition, the children from households linked to domestic violence were 44 percent more likely to have been suspended from school and 28 percent more likely to have been disciplined for bad behavior. The impact was seen across genders, races and income levels.

Not only did children from troubled homes suffer, however: Test scores fell and behavior problems increased for their classmates as well.

Troubled boys caused the bulk of the disruption, and the largest effects were on other boys. Indeed, Carrell and Hoekstra estimate that adding just one troubled boy to a class of 20 children reduces the standardized reading and math scores of other boys in the room by nearly two percentile points. And adding just one troubled boy to a class of 20 students increases the likelihood that another boy in the class will commit a disciplinary infraction by 17 percent.

Troubled girls, in contrast, had only a small and statistically insignificant impact on the test scores or behavior of their classmates. The study did not investigate the reasons for the gender differences.

Across all students, having a troubled student in a class reduced classmates' combined test scores by nearly 1 percentile point and increased their likelihood of getting into disciplinary trouble at school by 6 percent.

The researchers conducted sophisticated statistical tests to ensure that they were observing only the impacts of a troubled child on classrooms, not the impact of broader socioeconomic issues in the community. They compared classes from the same grade in the same school over time; some years the classes had troubled students, some years they did not. They also compared how siblings performed when one student was in a class with troubled classmates and another student from the same family was in a class with fewer troubled students.

"Our findings have important implications for both education and social policy," Carrell and Hoekstra write. "First, they suggest that policies that change a child's exposure to classmates from troubled families will have important consequences for his or her education outcomes. In addition, the results also help provide a more complete measure of the social costs of family conflict."

The research does not suggest that all disruptive schoolchildren come from families that experience domestic violence, nor are all children from domestic violence disruptive, Carrell emphasized.

"There are many reasons for disruptive classroom behavior; domestic violence is one particularly good indicator of a troubled child," Carrell said.


Contact: Claudia Morain
University of California - Davis

Related medicine news :

1. Troubled Boys Will Abandon Pot When Its Deemed Uncool
2. The Ensign Group Successfully Graduates Troubled Nursing Home from CMS Special Focus Facility Program
3. APHA Deeply Troubled by Bush Veto of CHIP
4. Sleepless Kids Are Troubled Kids
5. Texas State Rep. Sylvester Turner Honored as Champion for Children by The AMERIGROUP Foundation
6. Davis Vision, United Way 2-1-1 and the United Auto Workers Team Up to Provide Free Vision Screenings August 25 for Detroit Children
7. WXYZ-TV/Channel 7 is On Your Side With Healthy Living For Kids; Free Immunizations for Children on Sunday, August 24 at Charles H. Wright Museum of African American History
8. Preparing To Send Your Children Off To School? Healthy Breakfast, Lunch and Snack Ideas From Cabot(R) Can Contribute to a Better, More Productive School Year
9. UNC study: chilling hardship rates among families raising disabled children
10. West Coast Bank Sponsors LifeWorks Northwest Programs for Children in Low-Income Housing Communities
11. Overweight Hispanic children at significant risk for pre-diabetes, according to new USC study
Post Your Comments:
(Date:11/26/2015)... ... November 26, 2015 , ... WorldCare ... participated in the 61st annual Employee Benefits Conference. The Employee Benefits Conference was ... November 8th through Wednesday, November 11th, 2015. The conference was held at the ...
(Date:11/26/2015)... ... November 26, 2015 , ... ... has collaborated with Women’s Web – an online resource for Indian women ... mental and emotional well-being relationship, life balance, stress, professional development, and lifestyle. ...
(Date:11/25/2015)... , ... November 25, 2015 , ... ... more aggressive than those found on mammography, according to a study published online ... additional cancers not seen on mammography may necessitate a change in treatment. , ...
(Date:11/25/2015)... ... November 25, 2015 , ... The holiday season ... and pleasing the palates of attendees is of the utmost importance. Whether you ... seasonal get-together, give these recipes a try this holiday season. , Turkey Croquettes ...
(Date:11/25/2015)... ... November 25, 2015 , ... Medical Solutions, one ... for its stellar workplace culture with the company’s Cincinnati office being named a ... Cincinnati office was named a finalist in Cincinnati Business Courier’s 13th annual Greater ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... 2015 --> ... combineert immunotherapie met Bremachlorin-photodynamische therapie voor de ... ) --> ... ) Uit een ... (LUMC) blijkt dat ...
(Date:11/26/2015)... , November 26, 2015 ... addition of the "2016 Future Horizons ... of Abuse Testing Market: Supplier Shares, Country ... report to their offering. --> ... the "2016 Future Horizons and Growth ...
(Date:11/26/2015)... November 26, 2015 ... addition of the  "2016 Future Horizons ... Therapeutic Drug Monitoring (TDM) Market: Supplier ... Emerging Opportunities"  report to their offering.  ... announced the addition of the  "2016 ...
Breaking Medicine Technology: