1.5 Experimental Design

Question 1

Independent Variable

Answer 1

Variable that changes

Question 2

Dependent Variable

Answer 2

Variable affected by change

Question 3

Control Group

Answer 3

Standard to which comparisons are made in an experiment

Question 4

Experimental Group

Answer 4

The group that the tests are done on

Question 5

Example of a hypothesis

Answer 5

If I change the amount of pressure applied to my pencil, then the writing will be darker because I’m pressing harder.

Question 6

What is the independent variable?

Answer 6

Pressure applied to pencil

Question 7

What is the dependent variable?

Answer 7

The darkness of the writing

Question 8

What would be a controlled variable?

Answer 8

Brand of pencil, brand of paper, sentence that’s written

Question 9

What would it mean if an error bar overlapped with another by a lot?

Answer 9

The data is too similar

Question 10

What would it mean if an error bar overlapped with another just by a little?

Answer 10

Conduct further tests

Question 11

What would it mean if an error bar didn’t overlap with another at all?

Answer 11

The data is reliable