Interesting 2011 research study by Girl Scouts Research Institute, sponsored by Lockheed Martin. Note that Finding #5 pp 20-24, pointed out significant racial/ethnic group differences. Specifically, African American and Hispanic girls say they have just as much interest in STEM as Caucasian girls, but they have had less exposure to STEM, less adult support for pursuing STEM fields, lower academic achievement, and greater awareness of gender barriers in STEM professions. However, their confidence and ability to overcome obstacles are high, pointing to the strong role of individual characteristics in STEM interest and perceived ability in these subjects.
Four years later, I wonder how much the picture has changed?