“Historically, many studies have involved the easiest people to recruit, who tend to be people who come from advantaged environments. If we don’t make efforts to recruit diverse pools of participants, we almost always end up with children and adults who come from high-income, high-education environments,” Gabrieli says. “Until recently, we did not realize that principles of brain development vary in relation to the environment in which one grows up, and there was very little evidence about the influence of SES.”
Without this very type of study one could mistakenly do exactly what you’re accusing them of doing. I also didn’t see race mentioned. I’d assume the opposite of your presumption i.e. that this finding would stand regardless of race.
“Historically, many studies have involved the easiest people to recruit, who tend to be people who come from advantaged environments. If we don’t make efforts to recruit diverse pools of participants, we almost always end up with children and adults who come from high-income, high-education environments,” Gabrieli says. “Until recently, we did not realize that principles of brain development vary in relation to the environment in which one grows up, and there was very little evidence about the influence of SES.”
Without this very type of study one could mistakenly do exactly what you’re accusing them of doing. I also didn’t see race mentioned. I’d assume the opposite of your presumption i.e. that this finding would stand regardless of race.