Study Conducted by Simmons and Blyth (1987) Over Five Years

study conducted by Simmons and Blyth (1987) over five years with students from grades 6-10 concluded that students who attended an 8-4 plan versus a 6-3-3 plan were more likely to have

A) lower involvement in extracurricular activities.
B) lower perceived autonomy.
C) higher self-esteem.
D) higher grade point averages.