Question

Mrs. DeFord wanted to know whether or not her students would do better on a quiz if she promised them candy.

Answer 1

Answer:

a.) Independent Variable: # of candy bars promised to each group

[ The Independent Varaiable is what you change in the experiment]

b.) Dependent Variable: Quiz Scores

[ The Dependent Variable is what you're testing in the experiment; what the experiment should affect]

c.) Constant(s): Same Quiz, same number of gender kids in each group, same age kids in each group, same ability, and same background. [and same time, I'm assuming.]

[Constants are what you keep the same in the experiment; what you're not changing.]

d.) Testable Question: Will promising kids candy make them do better on tests and quizzes? [or something along this lines of this]

[The Testable Question is what you're trying to find out in the experiment]

e.) Hypothesis: The more candy the students were promised, the better results Mrs. DeFord would get from them.

[The Hypothesis is what the person performing the experiment expects will happen; an educated guess]

f. Formal Conclusion: Data shows that kids who were promised more candy had a better average than kids who were promised less candy/none. Mrs. DeFord's hypothesis was correct, since she assumed the more candy the students were promised, the better they would do on the quiz.

[The Formal Conclusion is what you have learned from the experiment, and wether or not the hypothesis was correct or not.]

I hope this helps! :)

Answer 2

Independent variable:
Number of candy bars

Dependent variable:
Performance on test

Constants:
Everything listed in the fourth paragraph (number of students, number of boys and girls, same quiz, etc.)

Testable question:
Do students perform better on quizzes if they’re rewarded with candy bars?

Hypothesis:
Students will perform better on the quiz when rewarded with candy bars.

Formal conclusion statement:
The hypothesis is accepted because the students performed better on the quiz when they were rewarded with candy bars, and the more candy bars they were promised, the better their performance.