Independent and Dependent Variables

What is the role of variables in research?

• They represent characteristics, numbers, or quantities that can be measured or counted.

• They are only used in mathematics to express numerical values.

• They are fixed and do not change over time.

• They are only relevant in statistical analysis.

In a study analyzing the effect of antibiotic use on microbial resistance, what is the independent variable?

• Antibiotic use

• Microbial resistance

• Both antibiotic use and microbial resistance

• Neither antibiotic use nor microbial resistance

Where are independent variables typically placed in graphs?

• On the X-axis

• On the Y-axis

• In the legend

• In the title

What is another term for dependent variables?

• Response variables

• Predictor variables

• Input variables

• Explanatory variables

In an experiment testing the effect of room temperature on math test scores, what is the dependent variable?

• Math test scores

• Room temperature

• Both room temperature and math test scores

• Neither room temperature nor math test scores