Lab #3

Question 1

A question is needed to

Answer 1

Set the tone for the remaining steps of the investigation

Question 2

In order to scientifically investigate a question, it must be

Answer 2

Well defined, controllable, and measurable

Question 3

A hypothesis

Answer 3

Proposed explanation to the question based on observations; provide a model of how different factors in the original question relate to each other

Question 4

A hypothesis must be

Answer 4

Testable & falsifiable

Question 5

Experimental design

Answer 5

Tests a hypothesis including controlled experimentation or collection and synthesis of additional information from other sources

Question 6

Before experimental methodology,

Answer 6

Variables, levels of treatment, controls, and replication

Question 7

Relationship between independent and dependent variables is used to

Answer 7

Support/reject a hypothesis

Question 8

Controlled variables purpose is to

Answer 8

Make sure the independent variable is directly responsible for changes in the dependent variable

Question 9

Level of treatment

Answer 9

Range of values for the independent variable

Question 10

Experimental procedure

Answer 10

Study the response of the dependent variable to the treatment

Question 11

Replication

Answer 11

Determine whether the results obtained hold true or due to lack

Question 12

Controls

Answer 12

Independent variable is at 0; allows the investigator to determine whether the design is functioning as it should; allows for a comparison

Question 13

Prediction

Answer 13

Descriptions of the expected results from a particular experiment design if hypothesis holds true; written in “if, then” fashion; forecast the response of the dependent variable