Ateacher believes that her students will perform better on a test if they receive extra feedback on their homework. to test this idea, she randomly assigns half of her students to get extra feedback. at the end of the semester, she compares the scores of the students who received extra feedback with those who received a normal amount of feedback. in this example, the dependent variable is:

In this particular case, the dependent variable will be the performance on a test.

Explanation:

The performance of each student on a test will vary on the feedback received about homework. So at the end of the period, she can have a better view of the effect caused by the extra feedback.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.