Although we controlled for education and other demographics in these analyses, we were concerned that simply controlling for these variables was not sufficient to overcome the limitations of a skewed age and education distribution. Age and education are important because studies have suggested that younger, more educated persons have more positive views toward genetic research. To address this potential limitation, we selected a subsample consisting of college-educated, younger (aged 18–29 years) participants, in which the three ethnic groups were comparable on the key demographic variables such as age and education.
