37-40 Katrina Has Conducted a Study That Examines Entering Children's

Multiple Choice

37.-40. Katrina has conducted a study that examines entering children's social skills. She has first-grade teachers rate students' social skills at the end of first grade. She then compares the scores of students who attended formal Pre-Kindergarten programs with those who did not.
-What is the dependent variable in Katrina's study?

A) First grade
B) Pre-Kindergarten programs
C) Social Skills
D) First grade teachers