Download Studying People Scientifically Unit Test

Name:______________________________________
Date:____________________
Studying People Scientifically Unit Test
Part 1: Multiple Choice: Choose the best answer. Please put a CAPITAL letter in the space
1. Which of the following is NOT a part of a well-designed experiment? ____
a.
b.
c.
d.
a control
multiple trials
a reproducible procedure
small sample size
2. A scientist wants to know if the circulatory system of different types of worms are the same
or different. What is the scientist most likely to do first?
____
a.
b.
c.
d.
develop a procedure
analyze data
make a conclusion
collect data from experiment
3. Drew doesn’t like eating raw carrots. He decides to provide his parents with qualitative data
to support his opinion. Which of the following is NOT qualitative? ____
a.
b.
c.
d.
carrots taste dry
a raw carrot is hard to chew
an uncut carrot is two inches too long to fit into his lunch box
carrots take a long time to peel
4. Ali wants to find out how long it takes his baby sister to fall asleep. Variables in his
experiment include:
____
a.
b.
c.
d.
time of day
noise levels
both a and b
none of the above
5. Hiromi wonders which of her friends can run the fastest. She decides that a race, starting at
the maple tree and ending at the oak tree, will answer her question. Which variable (s) is she
planning to control?
____
a.
b.
c.
d.
time
distance
both a and b
none of the above
Part 2: Fill in the Blank: Decide whether the example is qualitative or quantitative
data/observation. If it is qualitative, mark a “L” in the space and if it is quantitative, mark a “N”
in the space.
1.
____
10 meters long
2.
____
Circular shape
3.
____
64 grams in mass
4.
____
Rough around the edges
5.
____
Blue
Part 3: Evaluate the following clinical trials based on the criteria we have learned in class.
Clinical Trial of Relaxin:
We have developed a new drug called Relaxin. We believe Relaxin can be used to calm and
relax people as well as prevent nausea. For these reasons, we think this drug would be useful to
pregnant women. We would like to conduct a clinical trial to find out if this drug is effective for
pregnant women. We will provide Relaxin to some doctors. These doctors will be asked to
prescribe Relaxin to pregnant women who ask for a drug to prevent nausea. Of course, we will
tell the women that they are receiving Relaxin, because people testing new drugs should give
their permission. We will then record the effects on these women by asking them if they feel
calmer and less nauseated.
Relaxin has been tested for its effectiveness and safety. Scientists conducted an experiment on
mice. Half of these mice received Relaxin, and the other half received a placebo. The scientists
did not know which mice received Relaxin and which received the placebo until the end of the
experiment. We observed and recorded how much the mice moved. The mice that were given
the Relaxin moved less than the mice that were given the placebo. None of the mice had any side
effects from this drug. To further test the safety of Relaxin, we gave large doses to some mice.
None of these mice showed any permanent side effects from the large doses.
Questions:
1. Do you believe this is an ethical clinical trial? Give specific examples from the description to
support your answer.
2. Why weren’t the scientists told until the conclusion of the experiment which mice received
the Relaxin versus the placebo?