Midterm: Controlled Experiments

A scientist is performing a controlled experiment where they are seeing if the color of paint in a room can influence a person's mood. The independent variable of the experiment is

• the color of the room

• the person's mood

• the size of the room

• the amount of time spent in the room

A scientist is performing a controlled experiment where they are seeing if the color of paint in a room can influence a person's mood. The dependent variable of the experiment is

• The size of the room

• the amount of time spent in the room

• the person's mood

• the color of the room

A scientist is performing a controlled experiment where they are seeing if the color of paint in a room can influence a person's mood. The type of data being collected from this is experiment can be described as

• quantitative date

• qualitative data

A scientist is performing a controlled experiment where they are seeing if the color of paint in a room can influence a person's mood. Select the controlled variables for an experiment like this. (select all that apply)

• The color of the room

• the size of the room

• the amount of time spent in the room

• the person's mood after leaving the room

A theory... (select all that apply)

• Has been very well researched

• May be revised based on new information

• has been researched less than a hypothesis

• has not been tested yet

The independent variable is best described as

• the one thing a scientist is testing in an experiment

• the group of an experiment that does not receive treatment

• the factors in an experiment that need to be kept the same between groups

• the measured outcome of an experiment

Tags

NGSS.MS-PS2-2

The dependent variable is best described as

• the one thing a scientist is testing in an experiment

• the group of an experiment that does not receive treatment

• the factors in an experiment that need to be kept the same between groups

• the measured outcome of an experiment

Tags

NGSS.MS-PS2-2

A scientist is conducting an experiment to investigate whether reading the textbook will improve the grades of students.

They have 15 students in their class read the textbook as homework before taking a quiz, the other 15 students were asked to not read the textbook. All 30 students attended the same lectures, were assigned the same classwork assignments, and had the same average before taking the quiz.

What are 2 controlled variables in the experiment (select all that apply)

• Whether or not they read the textbook

• The grade they score on the quiz

• The average of the students before the experiment

• The lectures that the students went to before the quiz

A scientist is conducting an experiment to investigate whether reading the textbook will improve the grades of students.

They have 15 students in their class read the textbook as homework before taking a quiz, the other 15 students were asked to not read the textbook. All 30 students attended the same lectures, were assigned the same classwork assignments, and had the same average before taking the quiz.

What is the dependent variable in this experiment?

• The number of students taking the quiz

• The amount of time spent in class

• Whether or not students read the book

• The grades students receive on the quiz

A scientist is conducting an experiment to investigate whether reading the textbook will improve the grades of students.

They have 15 students in their class read the textbook as homework before taking a quiz, the other 15 students were asked to not read the textbook. All 30 students attended the same lectures, were assigned the same classwork assignments, and had the same average before taking the quiz.

What is the independent variable in the experiment?

• The grades on the quiz

• Whether or not they read the textbook

• How many students take the quiz

• The location where the quiz is taken