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Your score was: 64 %

Question Results

Score 3 of 3

Question:

Multiple choice question

Removed means to take away.

For example:

He removed the books from the shelf so he could clean it.

pulled out

put into its place

took off

moved something away

Which answers are closest in meaning to removed? Choose the 3 correct answers.

Response:

pulled out

took off

moved something away

put into its place
Score 1 of 3

Question:

Multiple choice question

The examples below illustrate the meaning of removed.

a pot from the oven

a virus from the computer

a permanent exhibit from a museum

dirt from clothes

Which answers are examples of things that can be removed? Choose the 3 correct answers.

Response:

a pot from the oven

a permanent exhibit from a museum
Feedback:

To remove is to take out. If an exhibit is permanent, then it always stays in the same museum. It is never removed.

a virus from the computer

dirt from clothes
Score 1 of 3

Question:

Multiple choice question

kept where it was.

taken off the table.

moved to another table.

not left at the table.

Which answers below best complete the sentence? Choose the 3 correct answers. When the cup was removed from the table, it was...

Response:

taken off the table.

kept where it was.
Feedback:

To remove means to take away. If something is kept where it was, then it stays there and was not removed.

moved to another table.

not left at the table.
Score 2 of 2

Question:

Multiple choice question

Removing Confounding Factors

A confounding factor (sometimes called a confounding variable) in a research study is an element which may distort the results of a study. This factor has to be controlled in order to remove its possible effects on the relationship between the variables examined in the study.

Read this paragraph and answer the question below.

be fair to all the participants by not removing anyone who matches the criteria.

remove the possibility of additional factors that could also explain the outcome of the study.

In scientific experiments, researchers try to design the experiment in a way that prevents additional or confounding variables from also affecting their results. One way to remove the influence of confounding variables is to select participants who are as similar as possible, and randomly divide them into the experimental and control groups. Using sampling to remove possible effects of confounding variables is called 'matched sampling'.

Which answers below best complete this sentence? Choose ONE correct answer.

The purpose of closely matching the participants in the experimental and control groups is to…

Response:

be fair to all the participants by not removing anyone who matches the criteria.

remove the possibility of additional factors that could also explain the outcome of the study.