Experimental Design

Question 1

Efficacy

Answer 1

The ability to produce a desired or intented result

Question 2

Inference

Answer 2

A conclusion reached based on evidence

Question 3

Placebo

Answer 3

A substance that has no beneficial effect

Question 4

Trials

Answer 4

Repititions of an experiment or test

Question 5

Variable

Answer 5

Capable of being changed or altered

Question 6

Hypothesis

Answer 6

A testable prediction about what might happen in an experiment, usually written as an ‘if-then’ statement

Question 6

Scientific Method

Answer 6

A step-by-step process scientists use to ask questions and find answers about the world

Question 7

independent variable

Answer 7

The part of an experiment that a scientist changes on purpose

Question 8

Dependent Variable

Answer 8

The thing being measured in an experiment that changes because of the independent variables

Question 9

Observation

Answer 9

Using your five senses to gather information about something in the world

Question 10

Inference

Answer 10

A conclusion drawn from evidence and observations

Question 11

Quantitative Data

Answer 11

Information that can be measured with numbers

Question 12

qualitative Data

Answer 12

Information describing qualities like color, texture, or appearance

Question 13

Control Group

Answer 13

A group in an experiment that does not receive the special treatment being tested