If a researcher wants to compare recycling rates of students on campus who came from homes were curbside recycling was available against those where curbside recycling was not available, curbside recycling background would be the: If a researcher wants to compare recycling rates of students on campus who came from homes were curbside recycling was available against those where curbside recycling was not available, curbside recycling background would be the: criterion variable independent variable quasi-independent variable dependent variable