Laos is the least populated country in Indochina; home to nearly 7 million people. It is a single-party Marxist state, and ranks close to Cambodia and Burma on the tail end of human development indices. Ethnic Lao are about 55% of the population and inhabit the lowland regions. Numerous ethnic minorities inhabit more elevated regions, including the Hmong, who are about 8% of the population.
In this post I review one small study with intelligence test data for the nation of Laos. I also summarize over a dozen studies with intelligence and achievement test scores for Laotians living in the United States. A majority of these studies are for Hmong Americans.
Since the beginning of the year, among readers of HBD-related blogs there’s been an increased interest in trying to improve articles related to race and intelligence at Wikipedia. The appeal of this is easy to understand, since very few books or articles written for a popular audience accurately present the scientific consensus about this topic. (Some pop-science books about it, such as The Mismeasure of Man, are infamous for the amount of misrepresentation they involve.) On the other hand, while peer-reviewed journals and academic textbooks often do present this consensus, these generally aren’t accessible to lay people. Wikipedia is the most commonly-used source of information in the world, so if it can accurately represent how this topic is presented in the professional psychology literature, it’s providing a service that’s provided almost nowhere else.
However, there’s a problem. Many of these new editors don’t realize that contributing to any topic at Wikipedia requires more than just knowledge about the topic itself–it also requires an understanding of how to conduct oneself there. This is especially true in articles on controversial topics, and race and intelligence is the ninth most controversial topic at Wikipedia. Over the past few months, several of these editors have come to me for advice about how to make a positive difference in this area, so I’ve decided to write up some of my advice for them in a blog post here.
One point needs to stated before anything else: The most useful thing anyone can do on these articles is keep watch over them, and undo vandalism when it happens. The largest problem with most of the articles is that they aren’t being watched by anyone who cares about them. This means that people can remove chunks of sourced material without giving a reason, or add material without a source, and the changes often won’t be undone.
Thailand has a population of over 64 million people, which is comparable to the United Kingdom or France. It is the world’s 21st most populous country.
IQ and the Wealth of Nations (2002) and IQ and Global Inequality (2006) both assign Thailand an IQ of 91 based on one clinical trial from 1989. Lynn and Vanhanen (2012, p. 417) add two more studies that push their estimate down to 88. Some of their numbers are reported inaccurately and these books overlook larger, higher quality, and more recent intelligence test studies for this nation. In particular—as I noted on Gene Expression almost a decade ago—the government of Thailand has implemented broad national IQ surveys, which have been reported in relation to U.S. and U.K. test norms.
In this post I review almost 50 studies of intelligence and scholastic achievement for the nation of Thailand. Many representative studies since the 1990s give conflicting results, making a solid estimate of Thailand’s IQ a difficult task.
[My study summary and IQ estimate for Guadeloupe are withdrawn until I can get some necessary clarifications about the control group from the study authors (Massina et al, 2000). H/T to a reader from Martinique.]