(A version of this piece was published in the May 6 Orange County Register.)

When we’re asked about the overall quality of our nation’s or state’s public schools, Americans are fairly pessimistic. But when asked about the schools in their own neighborhoods, people are usually more upbeat.

This pattern was repeated yet again in a California poll released on April 28 by the Public Policy Institute. Four of every five Californians say there’s a quality problem with the state’s schools — most think it’s a "big" problem. But when pollsters asked about people’s neighborhood schools, over half rated them an "A" or a "B," and only 13 percent gave them a "D" or an "F."

What gives?

One popular explanation is that we don’t really have any idea how our nation’s or state’s public schools rank overall, but we do know about the performance of our own kids and our own schools. The more we know, the more satisfied we are.

This explanation has such an air of plausibility that it has convinced a great many people. If you’re one of them, and if you’d like to stay convinced, stop reading now.

In my book "Market Education: The Unknown History," I proposed an alternative explanation for the "class is keener" phenomenon: that Americans know more about the nation’s overall performance than about the performance of their own children or their own neighborhood schools. We read the papers; we see the international rankings; and eventually we deduce that American public education is in trouble.

But given the absence of any international rankings for our own children, we assume that no news is good news. Presented with inflated classroom grades, American parents mistakenly conclude that their own kids are doing well, and that all the bad public schools are in other people’s neighborhoods.

I based that theory partly on an international study of student achievement and parent opinion conducted by Harold Stevenson and James Stigler. Stevenson and Stigler tested students in various Asian and American cities and then asked their parents how well they thought their children were doing. Asian students consistently outperformed those in the United States, while their parents downplayed their accomplishments. American parents, unaware of their children’s poor showings, tended to think they were raising little Einsteins.

But are these results really representative? Do American students as a whole really perform badly, and are their parents really so ill-informed about their own kids’ academic shortcomings?

I answered the first part of that question earlier this year, with a review on the Mackinac Center Web site of the most recent international testing data. Short answer: Yes. Though American kids start off alright in the earliest grades, they fall further and further behind students in other countries the longer they stay in school. By the end of high school, Americans are near the bottom of the heap among industrialized nations, despite high dropout rates that mean fewer of our weak students are tested. .

As to the second question, 71 percent of American public school parents say that they have "no information" about how well their children compare academically to those in other nations, according to a national poll by the nonpartisan survey organization Public Agenda. A majority also say they have "no information" about how well their children compare to other American students. Quite a few other American parents acknowledge having "little information" on those subjects.

These findings undermine the claim that people are better informed about the performance of their own schools and children than they are about the nation’s overall educational performance. Americans are probably kinder to their neighborhood schools because they know less, not more, about them than about the nation’s schools as a whole.

The moral of this story is that no news is not necessarily good news. What you don’t know about your schools’ and children’s performances can hurt you.

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Andrew J. Coulson is senior fellow in education policy for the Mackinac Center for Public Policy, a research and educational institute headquartered in Midland, Mich. Permission to reprint in whole or in part is hereby granted, provided that the author and the Center are properly cited.