Critical Thinking: Reason and Evidence D265
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Free Critical Thinking: Reason and Evidence D265 Questions
Which statement is accurate regarding bias in information sources
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All sources have bias, so individuals should consult those that best align with their views.
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All sources have bias, so they are all equally credible.
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All sources have bias, but this is irrelevant since all readers have bias.
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All sources have bias, but some are more credible than others.
Explanation
Correct Answer D: All sources have bias, but some are more credible than others.
Explanation:
D. All sources have bias, but some are more credible than others.
This is correct because while it’s true that every source carries some degree of bias, credibility is not determined solely by bias. Credibility also depends on the accuracy of information, evidence provided, reputation, and objectivity. Some sources use bias responsibly and support their claims with facts, making them more reliable than others.
Why the Other Options Are Incorrect:
A. All sources have bias, so individuals should consult those that best align with their views.
This is incorrect because seeking only sources that align with one's personal beliefs leads to confirmation bias and limits critical thinking.
B. All sources have bias, so they are all equally credible.
This is incorrect because bias varies in degree and type, and not all sources apply it responsibly. Some sources are more balanced and evidence-based, making them more credible.
C. All sources have bias, but this is irrelevant since all readers have bias.
This is incorrect because recognizing both source and reader bias is important. Ignoring bias leads to uninformed or skewed interpretations of information, even if both sources and readers are imperfect.
Which factor should people focus on when evaluating internet-based information sources for credibility
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Readability
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Design
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Content
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Links
Explanation
Correct Answer C: Content
Explanation:
C. Content
This is correct because the accuracy, depth, evidence, and relevance of the content are the most important factors in evaluating credibility. Reliable content is fact-based, well-researched, and supported by sources or data. Critical thinkers prioritize what is being said over how it looks or how easy it is to read.
Why the Other Options Are Incorrect:
A. Readability
This is incorrect because while clear writing is helpful, readability does not guarantee that the information is factual or trustworthy.
B. Design
This is incorrect because a professional or attractive design can be misleading. Even unreliable sources may look polished.
D. Links
This is incorrect because while links can add value, they must be examined for quality and relevance. Having many links does not necessarily mean the source is credible.
Usually when home team fans come out smiling and celebrating the conclusion of a match, that means the home team won. At the conclusion of the match, many home team fans came out smiling and celebrating. I, therefore,concluded that the home team won.
Which term describes this argument
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Deductive
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Sound
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Valid
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inductive
Explanation
Correct Answer D: Inductive
Explanation:
D. Inductive
This is correct because the conclusion is based on a pattern or general observation, not a certainty. The argument uses past experience ("usually when fans celebrate, the home team wins") to infer what probably happened. Inductive reasoning moves from specific observations to a general conclusion that is likely, but not guaranteed, to be true.
Why the Other Options Are Incorrect:
A. Deductive
This is incorrect because deductive reasoning starts with a general rule and applies it to a specific case to reach a logically certain conclusion. This argument does not do that—it generalizes from experience instead.
B. Sound
This is incorrect because "soundness" applies to deductive arguments that are both valid and have true premises. Since this is not a deductive argument, it cannot be described as sound.
C. Valid
This is incorrect because "validity" is a term specific to deductive reasoning where, if the premises are true, the conclusion must be true. This argument is inductive, so the term "valid" does not apply.
What is a logical step for critical thinkers to take if they are uncertain about the reliability of a source
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Disregard any credibility concerns and use the source as support for sub-arguments.
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Verify the reliability of a source by cross-referencing with additional source materials.
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Refer to the arguments of the source without citing where the information came from.
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Assume the source is unreliable and search for other reliable sources.
Explanation
Correct Answer B: Verify the reliability of a source by cross-referencing with additional source materials.
Explanation:
B. Verify the reliability of a source by cross-referencing with additional source materials.
This is correct because critical thinkers evaluate uncertainty by consulting multiple reputable sources. Cross-referencing helps determine whether the original source aligns with established facts or consensus, which is essential for making informed judgments.
Why the Other Options Are Incorrect:
A. Disregard any credibility concerns and use the source as support for sub-arguments.
This is incorrect because ignoring credibility concerns can lead to spreading misinformation and undermines the strength of an argument.
C. Refer to the arguments of the source without citing where the information came from.
This is incorrect because failing to cite sources not only raises ethical concerns but also weakens transparency and academic credibility.
D. Assume the source is unreliable and search for other reliable sources.
This is incorrect because assuming unreliability without evidence is premature. Critical thinkers first verify before dismissing a source.
A university student surveys incoming freshmen to understand how students at the university feel about a proposed tuition increase.Which statements are true regarding this statistical sample
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It is not representative.
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It is not random.
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It is representative.
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It is random.
Explanation
Correct Answers:
A. It is not representative.
B. It is not random.
Explanation of Each Correct Option:
A. It is not representative.
This is correct because surveying only incoming freshmen does not reflect the views of the entire student body, which includes sophomores, juniors, seniors, and graduate students. The sample is skewed toward one specific group.
B. It is not random.
This is correct because selecting only incoming freshmen is a non-random selection. A random sample would include students of all years and types, selected without bias.
Why the Other Options Are Incorrect:
C. It is representative.
This is incorrect because the sample excludes a large portion of the university’s student population. Therefore, it cannot accurately represent the entire group.
D. It is random.
This is incorrect because the sample is targeted (only incoming freshmen), not randomly chosen from the full student population.
A teacher talks with a student about failing to turn in homework. The student replies by expressing a desire to dress up as a superhero for Halloween.Which response best matches this fallacy of relevance
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Genetic fallacy
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Straw man
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Red herring
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False cause
Explanation
Correct Answer C: Red herring
Explanation:
C. Red herring
This is correct because the student’s response distracts from the original issue (not turning in homework) by bringing up an unrelated topic (Halloween costume). A red herring is a deliberate diversion to avoid addressing the real issue.
Why the Other Options Are Incorrect:
A. Genetic fallacy
This is incorrect because genetic fallacy involves rejecting or accepting a claim based on its origin rather than its merits.
B. Straw man
This is incorrect because straw man involves misrepresenting someone’s argument to make it easier to attack, which is not happening here.
D. False cause
This is incorrect because false cause assumes a causal relationship without evidence, which is not the case in this example.
Which fallacy of weak induction best describes the following example?"If we allow the children to stay home from school today, they will expect to stay home every time it snows. Next they will expect to stay home whenever it rains, when it is too cold, too hot, or even too nice outside. Eventually the children will stay home from school every day.
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Slippery slope
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Appeal to ignorance
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Hasty generalization
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Equivocation
Explanation
Correct Answer A: Slippery slope
Explanation:
A. Slippery slope
This is correct because the argument claims that a relatively small first step (letting children stay home once) will inevitably lead to a chain of related negative events (children staying home every day), without providing evidence that such an extreme progression is likely.
Why the Other Options Are Incorrect:
B. Appeal to ignorance
This is incorrect because appeal to ignorance argues something is true or false based on lack of evidence, which is not the case here.
C. Hasty generalization
This is incorrect because hasty generalization involves making a broad conclusion from too little evidence, not a causal chain prediction.
D. Equivocation
This is incorrect because equivocation involves ambiguous use of a word or phrase, which is not present in this example.
A soccer fan buys a jersey with his favorite player's name and number on the back. When the player's performance decreases, the fan attributes it to the jersey he bought.Which lallacy of weak induction best describes this argument
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Shifting the burden of proof
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Post hoc, ergo propter hoc
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Appeal to ignorance
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Slippery slope
Explanation
Correct Answer B: Post hoc, ergo propter hoc
Explanation:
B. Post hoc, ergo propter hoc
This is correct because the fan assumes that the player’s decreased performance was caused by buying the jersey simply because the jersey purchase preceded the performance decline. This fallacy mistakenly links correlation or sequence with causation.
Why the Other Options Are Incorrect:
A. Shifting the burden of proof
This is incorrect because this fallacy involves demanding that someone else prove a claim rather than supporting one’s own argument.
C. Appeal to ignorance
This is incorrect because appeal to ignorance involves asserting a claim is true or false based on lack of evidence, which doesn’t apply here.
D. Slippery slope
This is incorrect because slippery slope involves arguing that one event will lead to a chain of negative events, which is not the case here.
If Bo is kind, then Bo is wealthy. Bo is wealthy. Therefore, Do is kind.
This is an example of which type of logic error
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Denying the antecedent
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Affirming the consequent
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Begging the question
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The fallacy fallacy
Explanation
Correct Answer B: Affirming the consequent
Explanation:
B. Affirming the consequent
This is correct because the argument follows the flawed logical form:
If A, then B.
B is true.
Therefore, A is true.
In this case:
If Bo is kind (A), then Bo is wealthy (B).
Bo is wealthy (B).
Therefore, Bo is kind (A).
This is invalid reasoning because there could be other reasons Bo is wealthy besides being kind.
Why the Other Options Are Incorrect:
A. Denying the antecedent
This is incorrect because that fallacy follows the structure:
If A, then B.
Not A.
Therefore, not B.
This structure does not appear in the argument.
C. Begging the question
This is incorrect because the argument does not assume its conclusion in its premise. Instead, it attempts to infer a conclusion from a true consequence, which is a different type of error.
D. The fallacy fallacy
This is incorrect because the argument does not reject a conclusion simply because the reasoning is flawed. Instead, it commits a flaw in logical structure itself.
A flight attendant accidentally spills a drink on a passenger. The passenger tells a friend that the flight attendants for the airline are incompetent.
Which fallacy of weak induction best describes this example
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Appeal to ignorance
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Slippery slope
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Hasty generalization
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Equivocation
Explanation
Correct Answer C: Hasty generalization
Explanation:
C. Hasty generalization
This is correct because the passenger is making a broad negative judgment about all flight attendants of the airline based on a single incident. This fallacy involves drawing a general conclusion from insufficient or unrepresentative evidence.
Why the Other Options Are Incorrect:
A. Appeal to ignorance
This is incorrect because the argument is not based on a lack of evidence or ignorance.
B. Slippery slope
This is incorrect because the argument does not claim that one event will lead to a chain of increasingly negative consequences.
D. Equivocation
This is incorrect because there is no ambiguous use of language or shifting meaning in the statement.
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