JEFFERSON CITY, Mo. (AP) — A Missouri judge has rejected a legal challenge to a November ballot proposal that asks voters whether to link teachers' jobs to the performance of their students.

An attorney for public education groups challenging the measure said he intends to appeal Tuesday's decision by Cole County Circuit Judge Dan Green.

Proposed Constitutional Amendment 3 would require schools to adopt teacher evaluation systems based largely on student performance data. Those evaluations would be used in decisions about paying and retaining personnel.

The lawsuit contends the amendment violates the Missouri Constitution by addressing two topics at once — by requiring the evaluation system and limiting the ability to collectively bargain over it.

Green ruled that the provisions all relate to the single topic of teacher employment.