500
Design a brief experiment that addresses the question: "Do students who do homework do better on tests?" Make sure it has all of the essential parts of a scientific investigation: Hypothesis, independent variable, dependent variable, control group, a way to collect data, a way to communicate the data, and how to construct a good conclusion
Students who recieve homework will do better on tests because they will have had more practice
group A-1/2 students assigned homework=independent variable
group B-1/2 students not assigned =control group
Scores on test=dependent variable
collect scores after test and average each groups scores
make a graph that shows how group a's average compared to group b's average (bar graph)
Conclusion will include accepting or rejecting the hypothesis, citing sources of error, and coming up with improvements or follow up experiments.