Scientific Method Homework
All of the questions in this assignment are sequential -- you must answer every question in order or the quiz will not make sense.
- 1.
A researcher wants to know if a person's mood can be improved by taking an herbal vitamin pill once a day. Which of the following is the independent variable?
- A.
Whether the people being studied take a vitamin pill once a day or not
- B.
Whether the people being studied are normally grumpy or depressed
- C.
Whether the people being studied are taking any other medication
- D.
Whether the mood of people being studied improves over time
Correct Answer
A. Whether the people being studied take a vitamin pill once a day or not -
- 2.
What is the dependent variable in question #1?
- A.
Whether the people being studied take a vitamin pill once a day or not
- B.
Whether the people being studied are normally grumpy or depressed
- C.
Whether the people being studied are taking any other medication
- D.
Whether the mood of people being studied improves over time
Correct Answer
D. Whether the mood of people being studied improves over time -
- 3.
Which of the following would be an appropriate hypothesis for question #1?
- A.
If people are grumpy, then they should take an herbal vitamin pill.
- B.
If people take an herbal vitamin pill once a day, then their overall mood will improve.
- C.
If people take a herbal vitamin pill once a day, then they will lose weight.
- D.
Depression medication is not as affective as herbal vitamin pills.
Correct Answer
B. If people take an herbal vitamin pill once a day, then their overall mood will improve. -
- 4.
Which of the following variables should be controlled in an experiment related to question #1?
- A.
The overall health of the people being studied
- B.
The other mood medications taken by people being studied
- C.
Both A and B
- D.
None of the above
Correct Answer
C. Both A and B -
- 5.
Which of the following experiments would best answer the researcher's original hypothesis?
- A.
Interview a group of 100 people who are all the same age and have similar healthy lifestyles to determine their personality type and normal mood. Make sure that none of them are taking any mood altering medications. Give half the people being studied a daily dose of an herbal vitamin pill, then give the other group of people in the study a "fake" pill (placebo). Interview all of the people being studied each week to see how their mood has changed. Compare the results of people who took an herbal vitamin pill to those of people who did not take an herbal vitamin pill.
- B.
Interview a group of 100 people who are all the same age and have similar healthy lifestyles to determine their personality type and normal mood. Make sure that none of them are taking any mood altering medications. Give all of them an herbal vitamin pill once a day for a three month period. Offer a cash reward to the person whose mood changes the most over that period.
- C.
Ask 100 random people if they believe that taking an herbal vitamin pill once a day will improve their mood over time.
- D.
Find 100 people who have been diagnosed with seasonal affective disorder (a psychological condition where people feel more depressed in the winter than in the summer). Ask them to take an herbal vitamin pill once a day for 6 months. Interview them before and after to see how their overall mood has changed during that period.
Correct Answer
A. Interview a group of 100 people who are all the same age and have similar healthy lifestyles to determine their personality type and normal mood. Make sure that none of them are taking any mood altering medications. Give half the people being studied a daily dose of an herbal vitamin pill, then give the other group of people in the study a "fake" pill (placebo). Interview all of the people being studied each week to see how their mood has changed. Compare the results of people who took an herbal vitamin pill to those of people who did not take an herbal vitamin pill. -
- 6.
When graphing the results of an experiment, the independent variable is always on the
- A.
X-axis
- B.
Y-axis
- C.
Z-axis
- D.
It depends on the experiment
Correct Answer
A. X-axis -
- 7.
When graphing the results of an experiment, the dependent variable is always on the
- A.
X-axis
- B.
Y-axis
- C.
Z-axis
- D.
It depends on the experiment
Correct Answer
B. Y-axis -
- 8.
Since Beth wears glasses, she must not have 20/20 vision.
- A.
Fact
- B.
Inference
Correct Answer
B. Inference -
- 9.
Oranges contain Vitamin C.
- A.
Fact
- B.
Inference
Correct Answer
A. Fact -
- 10.
Mr. Babitzke is probably sick since he’s not here today.
- A.
Fact
- B.
Inference
Correct Answer
B. Inference -
- 11.
My grandfather told me that a strong math background is important for students who plan to go to college.
- A.
Fact
- B.
Inference
Correct Answer
A. Fact -
- 12.
Which of these is NOT a step of the scientific method?
- A.
Ask a question
- B.
Design an experiment
- C.
Draw to a conclusion
- D.
Selling your invention
Correct Answer
D. Selling your invention -
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Feb 22, 2013Quiz Edited by
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Sep 07, 2012Quiz Created by
Andywebster2
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