Since you mentioned Finland, I’m going to put on my Professor of Education hat (it’s an automatic response).
For those who don’t know, Finland placed very well a few years back on some international tests of educational achievement. (The two biggest are the TIMSS, which tests 4th and 8th grade math and science, and the PISA, which looks at 15-year-olds in reading, science, and math.) Finland placed much better than the US, to be specific. In 2012, for instance, Finland was 12th in math, 5th in science, and 6th in reading among 15-year-olds, or so said the PISA; the US ranked 36th, 28th, and 24th. Finland roolz! The USA droolz! How can we let a little country like Finland beat us? What’s going on???
Part of the problem is that we generally hear about these tests only when they show distressingly low results for the US. Some influential Americans are very invested in demonstrating that the US has a bad educational system—some education reformers, some politicians, some folks in the business world—and when Bad News like this comes out, they are quick to grab onto it. We don’t hear so much about when the US does well. (See below.)
The other part of the problem is that it’s really hard to justify making sweeping comparisons about countries based on these tests.
*In reading, it’s difficult to get texts that are functionally equivalent. You’re going to use augury rather than predictionin an English passage? Fine. Now, write a comparable passage in Swedish that uses the more difficult of a similar pair of words. Now write one in Arabic. In Korean, in Spanish, in Flemish…in Finnish. There’s no way of ensuring the task is equivalent across these language groups—and no way to ensure that any differences even out.
*The US tests a broader, sometimes MUCH broader, range of students than some other countries. We routinely include learning disabled students and non-college-bound students in our pool of test takers, for instance; not all countries follow suit. (I honestly don’t know if Finland is one.)
*The US has a significantly larger group of low-SES students than most other comparable “developed western” countries. Pretty much everywhere, low-SES students do worse on these tests than high-SES students from the same country. Our high-SES students do essentially as well or better than high-SES students in Germany, Canada, Australia, Finland, etc. The education we offer seems to have about the same outcome; the demographics are what’s different.
+Finally, results like these are prone to great fluctuation. Among the most recent of these tests to be published was a TIMSS math test for grade 4, administered in 2015. Finland scored a 535, which ranked it above the Netherlands, Germany, Sweden, Australia, Canada, Italy, Spain, and well above New Zealand and France. Many of those differences are statistically significant. As for the US, well, many people looked for it down at the very bottom of that group, dogpaddling along just above the Omans, the Indonesias, and the Moroccos of this world, and these people were…well, they were wrong, as the US actually scored 539, *above *Finland (though not a difference that is statistically significant). Oh. Doesn’t fit the narrative that Finland is way outperforming the US, does it?
I don’t say that the results of these tests prove that the US educational system is WONDERFUL! AMAZING! THE ENVY OF THE WORLD! Because they don’t, and because our system could stand plenty of improvement. But TIMSS and the PISA tests don’t indicate disaster, either—or Finnish superiority.
Professor of education hat OFF. (About time, huh?) Anyway, as to the OP, the international tests don’t support (or reject) the notion that Finland’s less intensive approach to academics pays off down the road. It might be the way to go, but it’s not a good idea to try to use TIMSS and PISA to justify that approach.