Question 11 of 42 A graduate student researcher designs a study that will investigate the
effects of a new curriculum on student achievement in high school
mathematics. She creates a final exam with 20 questions. She compares two
samples, each containing 10 randomly selected students. One sample
consists of Algebra I students. The other sample consists of Algebra II
students. Select all weaknesses in the design.
O A. The sample size is too small.
O B. The samples are not similar.
C. More samples need to be compared.
O D. The exam has too few questions.