A sample size of 198 as per this study is more than sufficient to draw pretty strong conclusions.
The issue is not the sample size, it's that studies like these almost always involve a very homogenous population of young college students.
You mean WEIRD.
(Western, Educated, Industrialized, Rich, Democratic)
But why this matters is there a challenge judging intelligence cross cultures?
You mean WEIRD.
(Western, Educated, Industrialized, Rich, Democratic)
But why this matters is there a challenge judging intelligence cross cultures?