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Unit 1 - Experimental Design Flashcards | StudBud
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Unit 1 - Experimental Design
Unit 1 - Experimental Design
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Answers
1
Which of the following is QUALITATIVE data?
It is very windy
The wind speed is 17 mph
2
Which of the following is NOT a part of INFORMED CONSENT?
The subject must know the possible side effects of the experiment
The subject must be told the results of the experiment
The subject must agree to the experiment
The subject must know the purpose of the experiment
3
What is a hypothesis?
An observation
Something that you know
What you keep the same in an experiment
An educated guess
4
What is an INDEPENDENT variable?
The thing that the scientist changes to test the hypothesis
The thing the scientist measures while collecting results
Things that change that the scientist must control to test the hypothesis
5
The conclusion should include:
Supporting details
A summary of the results
A statement explaining whether or not the results supported the hypothesis
All of these
6
The PLACEBO EFFECT is:
A British band from the early 90s
Fake medicine given to make sure that it is the real medicine working
When you get dizzy from playing too much pokemon
When people think they get better when given a medicine, even if it is fake
7
Is this a good scientific question?
It is a bad scientific question because it is not measurable
It is a good scientific question
It is a bad scientific question because there is no DEPENDENT variable
It is a bad scientific question because there is no INDEPENDENT variable
8
What is a procedure?
step-by-step instructions
what stays the same in an experiment
safety rules
a prediction
9
What is a DEPENDENT variable?
The thing the scientist measures while collecting results
The thing that the scientist changes to test the hypothesis
Things that change that the scientist must control to test the hypothesis
10
Francis wants to know if students do better on homework while listening to classical music or hip hop.
the type of music
the volume of the music
the age of students
homework grades
11
What is the main reason scientists CONTROL variables?
So the experiment is clear and easy to understand
So they can record the data more easily
So the results come from the independent variable and nothing else
So they stay safe while performing the experiment
12
What is a CONTROLLED variable?
Things that change that the scientist must control to test the hypothesis
The thing the scientist measures while collecting results
The thing that the scientist changes to test the hypothesis
13
A PLACEBO is:
A pokemon that looks kind of like a medicine bottle
Your brain's ability to make you think you are healed of a disease
A cruel joke on people who don't get real medicine
Fake medicine given to make sure that it is the real medicine working
14
Is this a good scientific question?
It is a good scientific question
It is a bad scientific question because there is no INDEPENDENT variable
It is a bad scientific question because there is no DEPENDENT variable
It is a bad scientific question because it is not measurable
15
Which of the following are NOT part of a well designed experiment?
Controlled variables
Well-written procedures
Multiple trials
TWO independent variables
16
Follow the directions.
RED
ORANGE
ORANGE
PURPLE
GREEN
BLUE
17
Scientists who study humans should be aware that:
People may vary in their responses, but general conclusions can be made
Experiments on people don't work because each person is different
People are all the same
18
Which best describes the purpose of the scientific method?
To research new information
To become a scientist
To practice safety
To solve problems and answer questions
19
Why is it important to have a detailed procedure?
So scientists can repeat experiments
So scientists make fewer mistakes
So experiments are reliable and accurate
All of these
20
What does a good scientific question need to have?
to be measurable
one independent variable
one dependent variable
all of these
21
Francis wants to know if students do better on homework while listening to classical music or hip hop.
the type of music
homework grades
the volume of the music
the age of students
22
A HYPOTHESIS is NOT:
A question about how the universe works
A researched statement about an observed phenomenon
A testable statement about what the experiment is trying to prove
Frequently in the form "if / then"
23
Which of the following is QUANTITATIVE data?
I don't like running
The time it takes me to run the length of a football field
