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2009年考研英语时文阅读及翻译之学券计划

黄涛   2008-11-25 10:01 【 】【我要纠错
学券计划
英语的消亡
   

  FEW ideas in education are more controversial than vouchers——letting parents choose to educate their children wherever they wish at the taxpayer's expense. First suggested by Milton Friedman, an economist, in 1955, the principle is compelling simple. The state pays; parents choose; schools compete; standards rise; everybody gains.

  Simple, perhaps, but it has aroused predictable——and often fatal——opposition from the educational establishment. Letting parents choose where to educate their children is a silly idea; professionals know best. Cooperation, not competition, is the way to improve education for all. Vouchers would increase inequality because children who are hardest to teach would be left behind.

  But these arguments are now succumbing to sheer weight of evidence. Voucher schemes are running in several different countries without ill-effects for social cohesion; those that use a lottery to hand out vouchers offer proof that recipients get a better education than those that do not.

  Harry Patrinos, an education economist at the World Bank, cites a Colombian program to broaden access to secondary schooling, known as PACES, a 1990s initiative that provided over 125,000 poor children with vouchers worth around half the cost of private secondary school. Crucially, there were more applicants than vouchers. The programme, which selected children by lottery, provided researchers with an almost perfect experiment, akin to the pill-placebo studies used to judge the efficacy of new medicines. The subsequent results show that the children who received vouchers were 15—20% more likely to finish secondary education, five percentage points less likely to repeat a grade, scorced a bit better on scholastic tests and were much more likely to take college entrance exams.

  Vouchers programmes in several American states have been run along similar lines. Greg Forster, a statistician at the Friedman Foundation, a charity advocating universal vouchers, says there have been eight similar studies in America: seven showed statistically significant positive results but was not designed well enough to count.

  The voucher pupils did better even though the sate spent less than it would have done had the children been educated in normal state schools. American voucher schemes typically offer private schools around half of what the sate would spend if the pupils stayed in public schools. The Colombian programme did not even set out to offer better schooling than was available in the state sector; the aim was simply to raise enrollment rates as quickly and cheaply as possible.

  These results are important because they strip out other influences. Home, neighborhood and natural ability all affect results more than which school a child attends. If the pupils who received vouchers differ from those who don't——perhaps simply by coming from the sort of go-getting family that elbows its way to the front of every queue——any effect might simply be the result of any number of other factors. But assigning the vouchers randomly guarded against this risk.

  Opponents still argue that those who exercise choice will be the most able and committed, and by clustering themselves together in better schools they will abandon the weak and voiceless to languish in rotten ones. Some cite the example of Chile, where a universal voucher scheme that allows schools to charge top-up fees seems to have improved the education of the best-off most.

  The strongest evidence against this criticism comes from Sweden, where parents are freer than those in almost any other country to spend as they wish the money the government allocates to educating their children. Sweeping education reforms in 1992 not only relaxed enrolment rules in state sector, allowing students to attend schools outside their own municipality, but also let them take their state funding to private schools, including religious ones and those operating for profit. The only real restrictions imposed on private schools were that they must run their admissions on a first-come-first-served basis and promise not to charge top-up fees(most American voucher schemes impose similar conditions).

  The result has been burgeoning variety and a breakneck expansion of the private sector. At the time of the reforms only around 1% of Swedish students were educated privately; now 10% are, and growth in private schooling continues unabated.

  Anders Hultin of Kunskapsskolan, a chain of 26 Swedish schools founded by a venture capitalist in 1999 and now running at a profit, says its schools only rarely have to invoke the first-come-first-served rule——the chain has responded to demand by expanding so fast that parents keen to send their children to its schools usually get a place. So the private sector, by increasing the total number of places available, can ease the mad scramble for the best schools in the state sector(bureaucrats, by contrast, dislike paying for extra places in popular schools if there are vacancies in bad ones).

  More evidence that choice can raise standards for all comes from Caroline Hoxby, an economist at Harvard University, who has shown that when American public schools must compete for their students with schools that accept vouchers, their performance improves. Swedish researchers say the same. It seems that those who work in state schools are just like everybody else: they do better when confronted by a bit of competition.

  没有什么教育观念比学券更容易引发争议。所谓学券,就是让父母花纳税人的钱随意为孩子选择去哪里上学。经济学家Milton Friedman 1955年首次提出这一概念,其原则十分简单,但令人信服:即国家出钱;父母选择;学校竞争,标准提升;各方受益。

  这一原则虽然简单,但引发了教育机构的反对。这是预料之中的,但常常是致命的。让父母为孩子选择在何处接受教育的想法很荒唐;专业人士才是最懂行的。合作而非竞争才是提高所有学生教育水平的方式。学券会增加不平等,因为最难教的孩子将会被甩在后面。

  但是这些说法在强有力的证据面前正败下阵来。一些不同的国家正在实行学券计划,但并没有对社会疑聚力造成负面影响;用抽签方式发放学券的国家也证明:接受学券者比不接受学券者获得了更好的教育。

  世界银行的教育经济学家Harry Patrinos列举了20世纪90年代启动、被称做“PACES”的哥伦比亚项目。该项目旨在增加学生上中学的机会。它为12.5 万名贫困孩子提供了学券,其价值约为私立中学教育收费的一半。但关键问题是,申请人比学券多。该项目以抽签方式挑选学生,为研究人员提供了几乎完美无缺的实验,类似于用来判定新药疗效的“安慰剂”研究。后来的研究结果表明,接受学券的孩子完成中学学业的可能性要高出15%至20%,留级的可能性低5个百分点,在学术能力测试中的得分高些,也更有可能参加大学入学考试。

  美国也有几个州在类似方式实施学券计划。主张全面推广学券计划的慈善组织弗里德曼基金会的统计学家Greg Forster说,美国有8项类似的研究,其中7项研究的统计数据显示,学券对于那些幸运的获得者们具有明显的积极作用;第8项研究也显示了正面结果,但由于设计不佳不予考虑。

  尽管在与普通公立学校接受教育的学生相比,政府的支出要少,但接受学券的学生成绩却更好。美国的学券计划通常提供给私立学校费用为政府在公立学校学生身上投入的一半。哥伦比亚项目甚至没有把提供比公立学校更好的教育作为目标;其目标仅仅是尽快提高入学率,并提供尽可能便宜的教育。

  这些研究结果非常重要,因为他们完全排除了其它因素的影响。家庭背景、居住社区环境和天赋都比孩子在哪个学校就读更能影响结果。如果说拿到学券的学生与未能拿到学券的学生之间存在差异——或许仅仅由于前者来自那种事事争先,志在必得的家庭——任何差可能仅仅是其他多种因素作用的结果。但随机分配学券避免了这种风险。

  反对学券制者认为,那些择校的人能力最强、最执着,如果让他们在好学校扎堆儿,会将那些处于弱势地位、没有代言人的学生留在烂校长期受煎熬。有人举智利为例,该国普及了允许学校收取附加学费的学券计划,但似乎只最大程度地提高了最富裕学生的教育水平。

  反击这一批评的最有力的证据来自瑞典。瑞典的父母比几乎任何其它国家的人都自由,可随意支配政府分配的子女教育费用。1992年开始的全面改革不仅放宽了公立学校的入学要求,允许学生到他们所居住的城市以外的地方上学,而且也允许学生将国家的资助转到私立学校,包括宗教学校以及盈利性学校。对私立学校唯一真正的限制就是必须按“先来先得”的原则招收学生,并且要承诺不收取附加费(大多数美国学券计划也附加类似条件)。

  这样做的结果是办学形式越来越多样化,私立学校飞速增加。启动改革时,瑞典只有大约1%的学生在私立学校接受教育,现在达到了10%,而且在私立学校就读学生比例增长的趋势依然不减。

  一位风险资本家在1999年创办的Kunskapsskolan是一家拥有26所瑞典学校的连锁学校,现在正处于赢利状态。该校的Anders Hultin 说,各分校几乎没有用过“先来先得”的规则——为满足需求,连锁学校增加得非常快,愿意送孩子来该校读书的家长一般都能如愿。所以,通过增加学校数量,私立学校这一领域能够缓解公立学校领域疯狂争抢进入最好学校的压力(对比之下,如果劣等学校还有招生空间,政府官员就不愿意为增加名校招生拨款)。

  哈佛大学的经济学家Caroline Hoxby为择校能够提高所有学生水平提供了更多的证据。他已经证明,当美国的公立学校必须同接受学券的学校竞争生源时,它们的业绩就有进步。瑞典的研究人员也坚持同样的观点。看来,在公立学校工作的人就像其他人一样:面对一点竞争时,他们会做得更好。

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