Exposure is a segregation measure referring to the degree of potential contact, or the possibility of interaction, between group members of two racial groups. For instance, a black-white exposure index of 60% signifies that the average black child in the metro area attends a school which is 60% white. Higher values (closer to 100%) indicate higher exposure of the first group to the second group. Exposure to ones own group is also termed the "isolation index."
Primary schools defined as those with lowest grade of "Pre-K" through 3 and highest grade of "Pre-K" through 8. Indices in metro areas with small numbers of specified racial/ethnic groups should be used with caution. Data for 1999-2001 geocoded from zip codes to metropolitan areas. Excludes metro areas in which 10% or more of students attended schools for which race/ethnicity data was not reported. Pre-K students not included for metros in the following states in the
specified years: 1999-2000: AL, CA, KY, WY. 2000-2001: AL, CA, KY,
WY, TN. 2007-2008: CA, MI, SD. 2010-2011: CA, OR, MI.
Data for multi-racial students only collected for all states
as of 2010-2011.
National Center for Education Statistics, Common Core of Data. Public Elementary/Secondary School Universe Survey.