Nala Wants to Determine If Providing Awards for Science Fair

Multiple Choice

Nala wants to determine if providing awards for science fair winners increases or decreases participation by average students. She thinks that by promoting science as a competition some children may decide not to participate. To address this question, Nala identifies two types of schools in her district, schools that provide awards or schools that do not. She compares the participation rate of students in her two groups. Given Nala's study, what is the independent variable?

A) School location
B) Student achievement
C) School type
D) Participation rate