Experimental Design and Variables Quiz

Quiz
•
Mathematics
•
11th Grade
•
Medium
+2
Standards-aligned
Gina Kaucher
Used 4+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Noah, Daniel, and Zoe are conducting a science experiment. They have a group of plants that they water with a special fertilizer (treatment group) and another group of plants that they water normally (control group). What is the purpose of this control group in their experiment?
To administer the placebo effect
To collect data for the experiment
To compare with the treatment group
To receive the typical treatment
Answer explanation
The control group is used to compare with the treatment group and collect data for the experiment.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ava, Anika, and Harper are conducting a science experiment for their school project. Why would they use blinding in their experiment?
To control the variables in their experiment
To increase the sample size of their experiment
To prevent bias in their data collection
To ensure the placebo effect is effective in their experiment
Answer explanation
Blinding is used in the experiment to prevent bias in data collection.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Henry, William, and Benjamin are participating in a school science experiment. What is the placebo effect observed in this experiment?
The fake treatment given to William, who is in the control group
The improvement in Benjamin's condition due to believing he is being treated
The random assignment of Henry, William, and Benjamin to different groups
The collection of data without Henry, William, and Benjamin's knowledge
Answer explanation
The placebo effect is the improvement in Benjamin's condition due to believing he is being treated.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the purpose of blocking in an experiment?
To divide the participants into different groups
To prevent confounding variables from affecting the results
To compare the results of different treatments
To control the variables in the experiment
Answer explanation
Blocking in an experiment is used to divide participants into different groups, ensuring that confounding variables do not affect the results.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Henry, Mia, and Aria are conducting an experiment to determine the effect of different music genres on plant growth. In this context, what is a confounding variable?
A variable that is controlled by Henry, Mia, and Aria
A variable that is used to administer the placebo effect
A variable that is associated with another variable in the experiment, such as the type of plant or the volume of the music
A variable that is randomly assigned to different groups, like the genre of music each plant is exposed to
Answer explanation
A confounding variable is a variable associated with another variable in the experiment, such as the type of plant or the volume of the music. It can affect the results and make it difficult to determine the true cause and effect relationship.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Samuel, Sophia, and Olivia are conducting an experiment on the growth of plants under different light conditions. Why is it important for them to use a randomized block design in their experiment?
To clarify the difference between the plants grown under different light conditions
To prevent bias in data collection
To ensure the placebo effect is effective
To compare the results of different light conditions on plant growth
Answer explanation
Using a randomized block design helps clarify differences between plants grown under different light conditions and prevents bias in data collection.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the scenario where Evelyn, Aria, and Olivia are learning from the same teacher, but their learning outcomes are different, what could be the confounding variable?
The time of day the class is held
The weather on the day of the class
The teacher's mood during the class
The classroom environment where they are studying
Answer explanation
The confounding variable could be the weather on the day of the class, as it may affect the learning outcomes of Evelyn, Aria, and Olivia.
Tags
CCSS.RI.11-12.7
CCSS.RI.9-10.7
CCSS.RL.11-12.7
CCSS.RL.8.7
CCSS.RL.9-10.7
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