Similar to the pattern for average scores, the percentages of student at or above 
Basic and at or above 
Proficient were higher for twelfth-graders who reported either parent graduated from college than for students who reported lower levels of parental education. Likewise, students who reported either parent graduated from high school had higher percentages at or above 
Basic and at or above 
Proficient  than those who reported that neither parent graduated from high school.