new flame war, blame Wiki, not me
A recent USA study that reviewed political views and intelligence has shown that the mean adolescent intelligence of young adults who identify themselves as "very liberal" is 106.4, while that of those who identify themselves as "very conservative" is 94.8. Two other studies conducted in the UK reached similar conclusions.
By this definition, approximately 95 percent of the population scores an IQ between 70 and 130, which is within two standard deviations of the mean.
maybe this OP particular test is scored differently, the questions do reflect the actual tests