Valid and Sound Arguments

-ADDITIONAL support or explanation provided for why a claim is VALID

• argument

• backing

• claim

• evidence

-arguments that are sound; a premise and conclusion are reasonably true

• argument

• invalid

• textual evidence

• valid

What is the definition of "Soundness"?

• An argument that follows logically and is presumably true

• A conclusion supported by premises

• Using theoretical examples to prove the truth of something (non-observational)

• Any argument that is missing the required components to be argued

Evaluate the validity of the following argument: "If a figure has three sides, then it is a triangle. This figure has three sides. Therefore, it is a triangle."

• Valid

• Invalid

• Sound

• Unsound

Answer explanation

Since the definition of a triangle is a polygon with three sides and we know that the figure has three sides, it must be a triangle. This is valid logically and also true to what we know, therefore it is also sound.

Tags

DOK Level 2: Skill/Concept

What is the definition of "Validity"?

• An argument that follows logically

• A format for mapping arguments

• An argument made with the intention of defending an opinion

• Something that cancels itself out

• Socrates is a man.

• All men are mortal.

• Therefore Socrates is mortal.

• is valid reasoning

  (A valid argument may have only one true premise or a true conclusion)

• is sound reasoning

  (sound argument has true premises and a true conclusion)

• is neither valid nor sound

What should a strong argument have? Include all the correct answers.

• Counterargument

• Long summary

• Claim

• Evidence

• Reasoning

Which of the following best defines a 'valid argument'?

• An argument with true premises and a true conclusion

• An argument that follows logically from its premises

• An argument that is persuasive

• An argument that is based on emotions

What is a 'sound argument'?

• An argument that is valid and has true premises

• An argument that is convincing

• An argument that is based on statistical data

• An argument that appeals to authority

Identify the correct statement about sound arguments.

• All sound arguments are valid

• All valid arguments are sound

• Sound arguments do not require true premises

• Sound arguments are based on opinions