1 de junho de 2011

Cyberbullying:Parents Should Screen Kids' Summer Web Surfing

Racism, violence, cyberbullying online among things to monitor

Posted: May 31, 2011

TUESDAY, May 31 (HealthDay News) -- As the school year wraps up, many kids will replace class time with cyber time -- a trend leading one researcher to caution parents to watch out for online hazards such as "sexting" and cyberbullying.
"The Internet is a vast place with great things on it for children like games and educational lessons, David Schwebel, a psychology professor at the University of Alabama at Birmingham, said in a university news release. "There also are risks and danger such as sex crimes, violence, hatred and prejudice -- a lot of things children need to be protected from."
Schwebel points to a recent Pediatrics study that revealed about 75 percent of teens have cell phones and nearly a quarter of all American teens (22 percent) are surfing a social media site more than 10 times per day.
"Parental controls can help, but are not foolproof," Schwebel noted. "Parents need to teach children to act safely and get help when needed."
To that end, he outlines a number of tips designed to boost cyber safety among school children.
For one, Internet activity among young children should be routinely monitored, he advised. Parental participation in their child's web-surfing activities is a way to teach kids how to distinguish between appropriate content and inappropriate content, he suggested.
In addition, pressure to join in common Web activities (such as posting overly personal photos) should be a topic of conversation between parents and child, so that children feel empowered to resist such temptations.
Parents should also be on the lookout for signs that their child is being unsafely drawn into cyber-prompted activities, such as arranging to meet strangers they've talked with online.
Lastly, Schwebel encouraged parents to put time restrictions on cyber activities. "Sitting on the Internet does not burn calories," Schwebel said. "Children need to be out running, playing and active."

Celular pode ser cancerígeno


01 de junho de 2011
 Telecomunicações | O Globo | BR
Pela primeira vez, OMS classifica aparelhos como perigosos; mas pede mais estudos
UM HOMEM fala ao celular com o telefone colado ao ouvido; hábito que aumenta o risco de possíveis efeitos nocivos à saúde, dizem os médicos
Antônio Marinho*
Ouso de telefones celulares possivelmente aumenta o risco de formação de tumores cerebrais, inclusive malignos. Esta é a conclusão da Agência Internacional para a Investigação de Câncer (Iarc, na sigla em inglês), ligada à Organização Mundial de Saúde; a partir da análise de estudos publicados sobre o tema e revisados esta semana num painel com 31 cientistas de 14 países, em Lyon, na França. Depois de ouvir os especialistas, a OMS classificou os campos de frequência eletromagnética, como os emitidos por celulares, como "possivelmente cancerígenos" para humanos. É a primeira vez que a organização faz esta advertência.
Pelo menos cinco bilhões de celulares estão em operação no mundo e, segundo a Iarc, a exposição aos campos eletromagnéticos desses dispositivos sem fio pode causar efeitos a longo prazo na saúde. Os cientistas relacionaram os celulares a maior risco de glioma (tumor que se inicia nas células glia do sistema nervoso) e neuroma acústico (tumor benigno no canal auditivo). Os dados serão publicados na edição de julho da revista "The Lancet Oncology".
O Iarc cita estudo de 2004 que indica aumento de 40% no risco de tumores cerebrais em pessoas que falam ao celular por mais de 30 minutos por dia. Antes do painel em Lyon, a OMS afirmava que "não havia estudos conclusivos". Agora, o celular entrou na mesma categoria de substâncias como estireno (para produção de plásticos) e clorofórmio. O índice que avalia o risco de câncer das substâncias vai de 1 a 4.
- A evidência é forte para classificar as ondas de celulares no grupo 2B. Isto quer dizer que pode existir risco de câncer ao usar os aparelhos. Mas é preciso avaliar melhor esta relação - disse Jonathan Samet, da Universidade do Sul da Califórnia, líder do painel.
Christopher Wild, diretor da Iarc, disse que, "devido às potenciais consequências para a saúde, é importante que sejam realizadas mais investigações sobre os efeitos a longo prazo. Enquanto isso, é melhor reduzir a exposição".
A posição de Wild é a mesma de Ubirani Utero, chefe da área de Câncer Ocupacional do Instituto Nacional de Câncer (Inca). Ela diz que estudos, feitos principalmente na Europa, têm apontado maior risco de tumores cerebrais em usuários de celulares. E a população deve ser informada.
- No Brasil, o uso de celulares é mais recente do que em outros países e fica difícil comprovar relação com tumores cerebrais. Mas é importante se proteger, especialmente no caso de crianças, grupo em que o cérebro ainda está se desenvolvendo - afirma. - É melhor estimular outras formas de comunicação e evitar passar horas ao celular. E pode-se usar fones para afastar o aparelho da cabeça ou trocar o celular de ouvido.
Daniel Herchenhorn, chefe do Serviço de Oncologia Clínica do Hospital do Câncer do Inca, diz que estudos desse tipo, observacional, devem ser encarados com cautela. Pesquisas que tentem provar a associação devem separar pacientes em grupos de acordo com o tempo de uso de aparelho, modelo e outras variáveis que possam interferir no resultado.
- Deficiências à parte, a observação de aumento de incidência de tumores cerebrais em usuários de celular serve de alerta para que cuidados com uso excessivo, especialmente em jovens, sejam reavaliados. Mecanismos de uso à distância, como fones de ouvido ou bluetooth, ainda não foram bem testados - diz.
A situação ainda é um pouco confusa porque a Iarc se limitou a dizer que o "consumidor é quem deve decidir" o que fazer a partir de agora. A OMS não afirma taxativamente que usar celular causa câncer, mas tampouco descarta esta hipótese. Além disso, os especialistas não fixam um tempo máximo de uso, nem mínimo, para que seja perigoso. E não fazem qualquer recomendação específica.
Indústria contesta risco
Um estudo publicado em 2010 com quase 13 mil usuários de celulares ao longo de dez anos não mostrou associação clara entre tumores cerebrais e aparelhos sem fio. Em nota, Michael Milligan, secretário-geral do Mobile Manufacturers Forum (MMF), que representa fabricantes de celulares e outros dispositivos, diz que o setor de comunicações móveis continuará a apoiar pesquisas bem conduzidas e independentes que ajudem a esclarecer qualquer incerteza identificada pela avaliação da Iarc:
- Equipamentos de telecomunicações sem fio, incluindo telefones celulares e suas estações rádio-base, foram projetados para operar dentro de limites internacionais e nacionais que já têm margens de segurança substanciais.

31 de maio de 2011

Fellowship Pays Students $100,000 To Not Attend College


By: KAYLA WEBLEY

In an apparent hunt for the next Mark Zuckerberg or Bill Gates (both famously college dropouts), Peter Thiel, the co-founder of PayPal, will pay 24 college-aged students $100,000 to not attend college for two years. Instead, the students will spend their time developing business ideas in areas such as biotechnology, education and energy.
Of the 400 entrepreneurial-minded applicants, the 24 winners, who are all 20-years-old or younger, will work — where else? — in Silicon Valley with a network of more than 100 mentors who will help develop their ideas. The fellowship program, which plucked students from institutions such as Harvard, Stanford and the Massachusetts Institute of Technology, has been quite controversial as Thiel openly admits he is hoping the winners will learn more in those two years working than they would have by being in school (at some of our nation's most prestigious universities, mind you).
And this is not the first time Thiel, who received his bachelor's and law degrees from Stanford, has been outspokenly opposed to higher ed. In April, he told TechCrunch that he sees higher education as the next bubble, comparable to previously overvalued markets like technology and housing.
College has received a lot of negative publicity as of late as a series ofrecent reports have questioned the payoff of higher education. Still, while Gates and Zuckerberg might be stellar examples of achievement without a college degree, these billionaire CEOs are in the (microscopic) minority. Indeed, their success is so noteworthybecause of how unlikely it is. For the rest of us, the 2010 U.S. Census shows adults who graduate from four-year colleges earn, on average, $19,550 more per year than those adults with only a high school diploma.
Nevertheless, for the 24 students, dropping out of college for the fellowship was worth the gamble. The real test for Thiel's ambitious program will come in two years when his prodigies will decide whether to continue pursuing their start-ups dreams without the help of college, or to re-enroll.
Time Magazine


38% of College Students Can’t Go 10 Minutes Without Tech [STATS]


by 


Many college students are dependent on digital technology in the classroom, according to a study released on Tuesday by etextbook seller CourseSmart and Wakefield Research.
The study surveyed 500 American college students. Seventy-three percent of them said they would not be able to study without some form of technology, and 38% said that they could not even go more than 10 minutes without checking their laptop, smartphone, tablet or ereader.
Many of the students said they used technology for learning tasks traditionally completed with paper. In addition to the unsurprisingly large majority of students who used it to research and write papers (81% and 82% respectively), 70% of the students said they use keyboards rather than paper to take notes and 65% said they use digital devices to create presentations. Technology was also a preferred method for getting in touch with teachers — 91% of the students cited email as a method for seeking extra help from their instructors.
Using an ereader for assigned reading hasn’t caught on quite as well. A 2010 study by OnCampus Research found that 74% of college students surveyed still preferred to use a printed textbook. But the CourseSmartsurvey suggests that further etextbook adoption might be on the way.
Nearly half of the 98% of students in the survey who owned a digital device said they regularly readetextbooks. Sixty-three percent had read an etextbook on their device at least once, and the majority of the survey group agreed that etextbooks are easier to carry, simpler to search, cheaper and better than traditional textbooks for reading on-the-go.

Media, Think Tanks, and Educational Research


Advocacy-oriented think-tank studies get a disproportionate amount of media attention.


The Bunkum Awards are a sort of beauty contest for ugly people. Bestowed by the National Education Policy Center housed at the University of Colorado at Boulder, they reward the most “nonsensical, confusing, and disingenuous” studies of education published each year. Categories include “Damned Lies for Statistical Subterfuge,” “Inferential Longjump,” and “Truthiness in Education.” Contestants are drawn from reports critiqued by the Think Tank Review Project, a five-year-old initiative that provides peer reviews of think-tank reports about education. Though any think tank is eligible, the Bunkum Awards are annually dominated by one subsector: advocacy-oriented think tanks that often value ideology over methodology.
They might be tongue-in-cheek, but these awards are also symbolic of a serious concern among many academics who study K–12 and higher education. Education professors worry that think-tank reports are more widely distributed than peer-reviewed research through the mainstream media and, as a result, have an outsized influence on policy and practice.
Yet surprisingly little research exists on the nexus between the news media and schools and universities, despite the fact that education is among our nation’s most significant public interests and expenses. So, in 2009, the National Education Policy Center commissioned me to look into who was actually conducting the educational research mentioned in the news media.

Educational Research in the Media

For those who feared the Bunkumization of news media accounts of educational research, the study’s results contained both good news and bad. While think tanks by no means dominated the educational research mentioned in the three media outlets I studied—Education Week, the New York Times, and the Washington Post, which were chosen because of their influence among academics, philanthropists, journalists, and others knowledgeable about education policy—any given advocacy-oriented think-tank study had a substantially higher probability of being mentioned than any given academic study.
It is, of course, possible that think-tank studies were more likely to be mentioned because they were more likely than academic research to focus on issues of immediate public concern. My dissertation further explores this issue by examining why journalists would choose to cite one type of educational research over another.
When it came to counting raw numbers of citations rather than the probability of citing a particular study, academic research, not think-tank research, was most frequently mentioned in one of the three outlets studied: the trade publication Education Week. Of 946 educational research citations in 399 articles published in the first six months of 2008, 28 percent mentioned academic research. Government research was most frequently mentioned in the two other outlets studied—the New York Times and the Washington Post. Of 465 articles that cited educational research (945 total research citations) in 2007, 29 percent mentioned government studies. Academic research was second most common among these two mainstream media outlets (22 percent). Government research was the second most common in Education Week (22 percent). Given that several mass-media researchers have found that traditional journalism depends upon and revolves around governmental sources and operations, the prominence of government studies was unsurprising.
Think-tank citations were third most common both in Education Week (15 percent) and in the two daily newspapers (11 percent). Other research affiliations mentioned included university-based policy centers such as the National Education Policy Center itself, associations such as the National School Boards Association, and original research sponsored by media outlets (for example, college rankings by U.S. News & World Report). So, for those who believe that academic and government studies are generally more rigorous than advocacy research, the news was good.
Think-tank educational research did not dominate the publications studied. In fact, academics were getting more ink. Yet, for those troubled by Bunkumization, matters for concern remained, especially when think tanks were disaggregated by their orientation toward advocacy. Nonadvocacy think tanks, such as the RAND Corporation and the American Institutes for Research, are often engaged in evaluation or contract-based work outsourced by other organizations and tend to produce work that is higher quality and much more useful for policy making. The National Education Policy Center’s reviews of reports from nonadvocacy think tanks have identified relatively few methodological concerns. Yet my study found that such think tanks produced just 30 percent of the 139 think-tank research studies cited inEducation Week and 17 percent of the 102 think-tank studies cited in the New York Timesand the Washington Post. The remaining think-tank citations were to studies produced by advocacy-oriented organizations such as the Manhattan Institute and the Progressive Policy Institute.
In addition to comparing raw numbers of think-tank and academic citations, I compared the probability that the media would mention university research with the probability that they would mention advocacy-oriented think-tank research by calculating the total amount of research produced by each type of organization and the total number of media citations of each type of organization. For think tanks, I counted the number of publications that appeared on each of 104 organizations’ websites in 2007. For academic studies, I both counted publications in all education-related, English-language peer-reviewed journals in 2007 and compiled presentations at the annual conference of the American Educational Research Association.
I found that advocacy-oriented think-tank studies were more likely to be mentioned in the news sources I examined than studies by nonadvocacy think tanks. In 2007, academics produced fourteen to sixteen times more studies than did advocacy-oriented think tanks. Yet academic research was only twice as likely as advocacy-oriented think-tank research to be mentioned in the three outlets studied.
In addition to examining advocacy-oriented think tanks as a group, I broke down the data based upon each organization’s political stance. Here, the research got murkier: it is not always easy to classify think tanks. While an organization such as the Heritage Foundation is clearly conservative and one such as the Economic Policy Institute definitely leans left, other groups are harder to pin down. Particularly difficult to classify are neoliberal organizations such as Education Sector that support many of the same free-market-style educational reforms as libertarians and conservatives yet strongly associate themselves with Democratic Party goals of increasing educational equity. Further, because of the small numbers of think tanks in particular political categories (for example, only four think tanks were classified as “center-left”), a single think tank could have an oversized influence on its category. For this reason, I did not draw any firm conclusions about whether the outlets studied were more likely to represent educational research from left- or right-leaning advocacy-oriented think tanks. However, my findings did suggest one conclusion: all three outlets were more likely to mention reports by think tanks classified as either left or right leaning than they were to mention studies by advocacy organizations without a discernible orientation on the traditional political spectrum. For example, one centrist advocacy-oriented organization included in my study was the Education Trust, which advocates for closing the achievement gap between more and less advantaged students. Such nonclassifiable or centrist organizations produced nearly half of the total advocacy-oriented research. Yet their research comprised just under a third of the mentions of advocacy-oriented think-tank research in the three media outlets I studied.

The Public Profile of Academic Research

Like any other single study, mine is only one piece of the puzzle. Knowing who produces the educational research mentioned in the news media tells us only so much. Studies published in academic forums, such as journals, generally undergo quality control in the form of double-blind peer review. The Think Tank Review Project has repeatedly highlighted troubling flaws in reports by advocacy-oriented think tanks. However, such flaws do not mean that any given example of think-tank research is necessarily shoddy or that academic research is automatically of a high standard. A common response by think tanks to the negative reviews from the National Education Policy Center is to argue that the center’s own research is suspect because the center receives some funding from the Great Lakes Center for Education Research and Practice, which is itself supported in part by the National Education Association, the nation’s largest teachers’ union (other funders include the Ford Foundation).
We do not know why journalists at the outlets studied seem to be more likely to cite any given advocacy-oriented think-tank study over any given academic study. Perhaps it is because advocacy-oriented organizations have the greatest incentive to make and maintain contacts with journalists, since a high media profile may enhance their ability to influence policy and attract funding. Certainly, the tenure structure of academia rewards those who publish in peer-reviewed journals without necessarily encouraging the dissemination of research to the general public. Further, anecdotal evidence suggests that, unlike their science-writer peers, education reporters rarely, if ever, consult peer-reviewed journals.

For example, my dissertation research examines educational research in print and online-only media outlets. Though I have so far sorted through nearly forty thousand articles in hundreds of publications, I have yet to come across a single mention of any of the six peer-reviewed education journals published by the American Educational Research Association, the world’s largest academic organization devoted to the study of education.
Additionally, some academic studies focus on technical subjects of little interest to the general public or even the school officials who read Education Week. Think tanks, by contrast, aim to influence policy by focusing on matters of public concern, such as tuition hikes or teacher evaluation. However, the topics of think-tank reports often become matters of public concern because think tanks are savvy about getting their pet subjects into print. As part of my dissertation research, I am interviewing journalists about their articles to understand better how and why some educational studies get mentioned and others ignored. Unfortunately, little current research explores how journalists perceive educational research in particular or social science research in general.
Previous research does, however, suggest that there may be ways to raise the public profile of peer-reviewed research. Here are some recommendations for professors who are interested in increasing mentions of peer-reviewed research in the news media:
  1. Write an op-ed or a letter to the editor. In his 2008 book on the use of charter school research in public debates, Columbia University professor Jeffrey Henig found that newspaper reporters repeatedly quoted the same small group of “experts,” of whom 46 percent were affiliated with universities and 19 percent were associated with think tanks. Of the twelve most frequently quoted experts, nine had written an op-ed or a letter to the editor prior to being interviewed for an article for the first time. In reaching out to the media, they both publicized their research and signaled that they were willing to be interviewed.
  2. Serve as an educator-expert. Journalists generally lack an educational background in science, social science, or scientific methods. According to the most recent comprehensive survey of US journalists, just 11 percent of respondents majored in the social sciences, with more than half of those majoring in political science or government. An additional 3 percent majored in the physical or biological sciences. Not surprisingly, the most common majors are in the communications field. Offer to comment on the methodological soundness of non-peer-reviewed research reports in your field. Often, such reports are embargoed and sent to journalists in advance, which would give you a small window of time to review the study. If you feel qualified to do so, you can also offer to serve as an “off-the-record” resource or even an occasional personal statistics tutor willing to answer questions about research or statistical reports.
  3. Don’t be afraid of the news media. A 2006 survey of epidemiologists and stem-cell researchers found contact between journalists and researchers was more common than previously believed: 70 percent of respondents had engaged in at least one media contact in the past three years, with 30 percent engaging in five or more contacts. A plurality (46 percent) indicated that the contacts enhanced professional advancement, with American and German scientists rating their interactions more highly than their counterparts in the other countries studied (the UK, Japan, and France). The top reasons for initiating contact? Achieving a more positive public attitude toward research and raising the educational level of the general public. In other words, professors are already working toward de-Bunkuming the idea that there is a disconnect between the media and peer-reviewed research.
Holly Yettick is a former education reporter and a doctoral candidate at the University of Colorado at Boulder. This article is based on her 2009 report, The Research That Reaches the Public: Who Produced the Educational Research Mentioned in the News Media? Her e-mail address is rachel.yettick@colorado.edu.

Think Tank vs Academic Work?


Education Next
By Bill Tucker 05/31/2011

Holly Yettick’s paper, The Research that Reaches the Public: Who Produces the Educational Research Mentioned in the News Media?, is an interesting look at the sources of mentions on educational issues inEducation Week, the New York Times, and the Washington Post. Yet, in her conclusions, she overlooks several important additional considerations as to why think tank work may receive more coverage than academic research.
First, previous explorations into this topic point to an issue that Yettick neglects: In a 2003 survey by the Hechinger Institute on Education and the Media, a large majority of journalists covering education declared most education research to be “so poorly written or jargon-laden” as to be incomprehensible. I think this is too broad a declaration (have you seen Andrew Ho explain growth models?), but you’d be hard-pressed to find folks to argue that the clarity of academic writing or presentation has dramatically improved over the past eight years.
Second, there are many times different conceptions of quality, goals, and intended audiences for work from these different institutions and authors. As an organization that attempts to draw on strengths from research, policy analysis, and journalism, Education Sector struggles with the tensions that each field brings to the work. For example, Yettick mentions the advantages of the peer review process. But, while in our internal standards, intellectual and methodological rigor top the list, we also include others that can conflict with the peer review process itself: timely, solution-oriented, and clearly communicated.
Third, the three media sources she surveys are all national media. Much academic work, particularly in education and public universities, focuses on local or regional issues.
More importantly, though, are the paper’s assumptions that think tank work is necessarily opposed to academic research. Many academics collaborate with think tanks to publish and promote research. And, much of the best think tank work draws on, synthesizes, and makes academic research accessible to lay audiences. For example,On the Clock: Rethinking the Way Schools Use Time, one of our more cited reports from my colleague Elena Silva, is not original research, but draws on a wide variety of more traditional research sources.
Clearly, any work offers opportunities for bias in the selection and characterization of the underlying research. But, mention of a think tank report in the media may further findings from — not compete with — academic research. Rather than thinking of academic research and think tank work as separate, opposing worlds, it’s better to understand the myriad of connecting pieces. An artificial divide masks the reality that there’s almost certainly more variability — with regards to both quality and bias — within these worlds than between the two. So, let’s use the work itself, rather than a particular label, to make judgments.
-Bill Tucker
PS – Yettick also acknowledges the difficulty of characterizing many organization’s political positions. I take it as a good sign that she specifically mentioned Education Sector as being hard to pin down. (Much to the surprise ofour friends at CATO, she characterized us as “center-libertarian” and classified our citations as on the right to compare the overall political perspective of media mentions.)

Testing: Costly, But Worth It


May 30, 2011, 

Marcus Winters is a senior fellow at the Manhattan Institute, where he has done several studies on education testing and school report cards.
What percentage of New York City’s teachers are performing at an unsatisfactory level? Did anyone guess 2.3 percent? That’s how many were rated unsatisfactory by the school system in 2009-201 0— and it actually represents an enormous uptick (up from 0.89 percent) in "unsatisfactory" ratings because of the city’s emphasis on improving the system.
Despite their limitations, standardized tests provide important information about teacher quality that can improve our flawed system for evaluating teachers.
How do we square such low rates of teacher failure with the fact that, despite real improvements to the system, students in New York City's public schools perform poorly in large numbers? Simple. The current evaluation system depends very little on answering the one question we care about most: Are students learning in a teacher’s classroom? Incorporating analysis of student test scores helps focus evaluations on answering that essential question.
Test scores are important because they’re objective measures of the schooling outcome. It’s appropriate to emphasize student achievement on math and reading tests because these are the building blocks for success, and far too few students attending public schools today adequately possess these basic skills. Developing new tests and the right methods for analyzing them can be costly. But their potential contribution to improving teacher quality — the single most important school-based factor for fostering student learning — far outweighs the upfront cost.
Of course, test-score analysis can’t tell us everything we want to know about a teacher’s performance. Using it in isolation to evaluate teachers creates bad incentives and can miss a great deal of what makes a teacher effective. But research shows that evaluations of a teacher’s contribution to her student’s test scores this year is a far better predictor of how much her future students will learn than are the factors prioritized by the current system: years of experience and possession of advanced degrees. Failing to utilize such important and accessible information about a teacher’s effectiveness is scandalous.
Standardized tests are imperfect measures of student achievement, and the statistical analyses that utilize such tests are imperfect tools for evaluating teachers. But despite their limitations, standardized tests provide important information about teacher quality that we should use to improve our terribly flawed system for evaluating teachers. New York City’s movement toward increased use of test scores to evaluate teachers is a step in the right direction.
The New York Times