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Scientific Method
Terms
18
Biology
Undergraduate 2
05/15/2011

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Cards

Term
What is Science?
Definition
Science is Curiosity, Conditional, and Changing
Term
Assumptions of Science
Definition

1) Order- Order in science, reason for everything

2) Ability to predict results IF we have all of the info

3) Repeatability: Need to repeat experiments to ensure validity.

Term
Hypothesis
Definition
An untested explanation of observations made about a single natural phenomenon. May be disproved by a single experiment.
Term
Theory
Definition

A well supported explanation of natural phenomenon; made up of one or more integrated, tested hypotheses that explains a broader set of observations.

 

Has a predicted value and allows one to make inferences from it.

 

May not be disproved by a single experiment because it is to well supported.

Term
Law
Definition

A set of rules, often an equation, that explains an action or a set of actions.

 

Laws are universally accepted to be true so it is very unlikely that it will be disproved.

Term
Steps of Scientific Method
Definition

Observe- See what you are questioning

Research- Study what you are observing

Hypothesis- Make a guess as to why your research will support your observations

Experiment- Perform tests to test your hypothesis

Analyze- Observe results of experiment

Communicate- Important part, Show the world what you have found

Repeat- If needed repeat for validity yourself and other people will too.

Term
Correlation
Definition
A and B are related
Term
Causation
Definition
A causes B
Term
Experiment
Definition
A deliberate manipulation of conditions, objects or subjects of interest for the purpose of observing a response.
Term
Treatment
Definition
The manipulation that the researcher does to the experiment.
Term
Control
Definition
The standard of comparison; condition, object or subject held constant vs. treatments
Term
Experimental Bias
Definition
The favoring of a certain outcome over others, may not be intentional.
Term
Randomization
Definition
Condition object or subject is assigned to group by chance in order to avoid bias.
Term
Replication
Definition
Replicates give support to evidence, increases statistical power
Term
Dependent Variable
Definition
Thing that is measured in an experiment
Term
Independent Variable
Definition
Thing that is manipulated in the experiment
Term
Null Hypothesis
Definition

(H0)

Statement of no difference

Term
Alternate Hypothesis
Definition

(H1, H2, H3)

Statement of difference

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