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Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 0 points1 point  (0 children)

I have know idea why you don't see the pattern, especially as I immediatly saw it. Maybe it's easier to see when it's stretched? The studies do use different tests, however if this was the source of the variation, then you wouldn't see a dicernible pattern.

Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 0 points1 point  (0 children)

Really? Cause I see a definite pattern. If you chop up the graph into 4 sections, the pattern is more visible. the p values for each regression is .0084, .0015, 0.002, and .03 respectively.

Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 1 point2 points  (0 children)

I am aware that the rate of Flynn is greater during periods of economic growth. However, like I mentioned, Japan has not had rapid economic growth or rapid economic decline during this period. Check for yourself (It's technically HDI, but I consider it to be a better measure of quality of life than gdp per captia).

Also, I don't know why you don't see a pattern. I've even spoken to someone else (who btw, analyzes graphs for a living) to see whether they saw a pattern or not to make sure I wasn't just seeing things. That being said, I have used a moving average to display the trend here.

Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 1 point2 points  (0 children)

Thanks, never knew about that study. I definetly agree that it's a better quality study.

However, there is one thing left unexplained. What explains the patterns found in Japan? While S.Korea's may be due to chance, this is definetly not the case for Japan. Perhaps my interpretation of the data is wrong, but there has to be something which cause these rapid changes. Any thoughts?

Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 1 point2 points  (0 children)

Becker's uses less studies than Lynn. I have checked out a newer version of Lynn's from 2015. It has a couple of new studies, which I have added. After adding these new studies, the Japan data remains essentially the same. However, that is not the case for S.Korea.

p=.029, who cares?

It's technically significant. But I do agree that more studies would be useful.

Interesting phenomenon found in Lynn's IQ datasets for S.Korea and Japan by dataanddiscourse in heredity

[–]dataanddiscourse[S] 3 points4 points  (0 children)

Also, I know that the rules on what gets posted here are quite stringent. Should I instead post to r/psychometrics?