SB 547, which has passed the Senate, would use test scores as one of the major yardsticks for improving California schools, but it would also  add other important factors including graduation rates. Shown here: Berkeley High School in Berkeley, Calif. (Robert Durell/ For The Times)

SB 547, which has passed the Senate, would use test scores as one of the major yardsticks for improving California schools, but it would also add other important factors including graduation rates. Shown here: Berkeley High School in Berkeley, Calif. (Robert Durell/ For The Times)