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D265 WGU Critical Thinking: Reason and Evidence Study Guide 2025 | Practice Questions and Concept Review

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This study guide for WGU D265 Critical Thinking: Reason and Evidence covers major course concepts including logical reasoning, evaluating evidence, identifying fallacies, analyzing arguments, and critical thinking strategies. The material includes practice-style questions with detailed explanations designed to strengthen understanding and support exam preparation. Ideal for students reviewing key concepts, argument analysis, and reasoning techniques before assessments.

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D265 - WGU - CRITICAL THINKING
- REASON AND EVIDENCE EXAM
2026 (ACTUAL EXAM) QUESTIONS
WITH VERIFIED ANSWERS
GRADED A+ (LATEST UPDATE
2026) UPDATE!!
PROPOSITIONS - answer-Are statements that can be true or false



NON-PROPOSITONS - answer-Are sentences that are not statements about matters of
fact or fiction. They do not make a claim that can be true or false.



SIMPLE PROPOSITIONS - answer-Have no internal logic structure, meaning whether
they are true or false does not depend on whether a part of them is true or false. They
are simply true or false on their own. (Example: Harry Potter wears glasses. The sky is
blue.)



COMPLEX PROPOSITIONS - answer-Have internal logic structure, meaning they are
composed of simple propositions. Whether they are true or false depends on whether
their parts are true or false. (Example: The sky is blue, but it does not look blue to me
right now. The cat ate the food, but he did not like it. The GDP of Canada is either $3
trillion or $12 trillion.)



Words used to identify Independent Propositions - answer-AND, OR, EITHER, BUT, IF,
THEN.



CONCLUSION INDICATORS - answer-THEREFORE, SO, IT FOLLOWS THAT, HENCE,
THUS, ENTAILS THAT, WE MAY CONCLUDE THAT, IMPLIES THAT, WHEREFORE, AND AS
A RESULT.

, PREMISE INDICATORS - answer-BECAUSE, FOR, GIVEN THAT, AS, SINCE, AS INDICATED
BY.



DEDUCTIVE ARGUMENTS - answer-Arguments where the premises guarantee or
necessitate the conclusion.

-mathematical arguments, logical arguments, arguments from definition.



INDUCTION ARGUMENTS - answer-Arguments where the premises make the
conclusion probable.

-analogies, authority, causal inferences, extrapolations, etc.



INFERENCE TO THE BEST EXPLANATION OR ABDUCTION - answer-Arguments where
the best available explanation is chosen as the correct explanation.



FORMAL FALLACY - answer-Concerns the structure of an argument



INFORMAL FALLACY - answer-Concerns the informational content of an argument



A FORMAL FALLACY IS A TYPE OF - answer-Bad Argument Structure



Which piece of information would be the most helpful to know in assessing the
credibility of a news story? - answer-Whether the name of the author and the
publication are identified



Which questions are most appropriate for evaluating the credibility of an information
source? - answer-Who funded it? & Does it try to get you to distrust other sources?



While researching a topic on the internet, a student encounters two different websites,
one of that looks more official than the other and includes tables, charts, and statistics,
while the other does not.

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