DrIverson Has Had 25 Students Who Have Repeated Her Advanced

Multiple Choice

Dr.Iverson has had 25 students who have repeated her advanced Economics class over the past five years.Each time,the students' grades for the second attempt in her course were nearly identical to the grades received on the first attempt.This leads Dr.Iverson to conclude that her testing procedures

A) provide valid measures of student ability.
B) are well standardized.
C) provide reliable measures of student ability.
D) successfully measures abstract reasoning skills.