WGU D265 Task 1 | Passed on First Attempt |Latest Update with
Complete Solution - 200 Questions and Answers Already Graded
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Subject Area Critical Thinking and Logic (WGU D265)
Description This exam assesses advanced understanding of logical reasoning, argument
analysis, and critical thinking skills, including identification of formal and
informal fallacies, evaluation of deductive and inductive arguments, and
application of logical concepts to complex scenarios. Aligned with WGU D265
Task 1 standards.
Expected Grade A+
Total Questions 200
Duration 3 hours
Learning Outcomes 1. Analyze and evaluate complex arguments for validity, soundness, and strength.
2. Identify and explain formal and informal fallacies in various contexts.
3. Apply logical principles to novel and interdisciplinary scenarios.
4. Construct and critique deductive and inductive reasoning chains.
Accreditation Accredited by the Northwest Commission on Colleges and Universities
(NWCCU) and compliant with US higher education standards for rigorous
undergraduate/graduate-level critical thinking coursework.
Page 1
,1. Consider the following argument: 'If the economic policy is sound, then
unemployment will decrease. Unemployment has decreased. Therefore, the economic
policy is sound.' Which of the following best characterizes the logical structure of
this argument?
A. Modus ponens; it is valid.
B. Modus tollens; it is valid.
C. Affirming the consequent; it is a formal fallacy.
D. Denying the antecedent; it is a formal fallacy.
Answer: C. Affirming the consequent; it is a formal fallacy.
The argument attempts to affirm the consequent: If P then Q, Q, therefore P. This is a
formal fallacy (affirming the consequent) and is invalid. Modus ponens is If P then Q, P,
therefore Q. Modus tollens is If P then Q, not Q, therefore not P. Denying the
antecedent is If P then Q, not P, therefore not Q.
2. A study concludes that people who drink red wine live longer than those who do
not. However, the study did not control for socioeconomic status, which correlates
with both red wine consumption and access to healthcare. Which fallacy is most
likely present?
A. Post hoc ergo propter hoc
B. Confirmation bias
C. Correlation does not imply causation
D. Hasty generalization
Answer: C. Correlation does not imply causation
The study confuses correlation with causation by ignoring a confounding variable
(socioeconomic status). Post hoc ergo propter hoc assumes temporal order, not
confound. Confirmation bias is selective thinking. Hasty generalization is a small
sample. The core issue is mistaking correlation for causation.
Page 2
,3. Which of the following best describes the difference between a deductive and an
inductive argument?
A. Deductive arguments guarantee the truth of the conclusion if the premises are true;
inductive arguments only make the conclusion probable.
B. Deductive arguments are always valid; inductive arguments are always strong.
C. Inductive arguments are used in mathematics; deductive arguments are used in science.
D. Deductive arguments rely on empirical evidence; inductive arguments rely on logical
necessity.
Answer: A. Deductive arguments guarantee the truth of the conclusion if the
premises are true; inductive arguments only make the conclusion probable.
Deductive arguments aim for certainty: if premises are true, conclusion must be true
(validity). Inductive arguments aim for probability: premises support conclusion but do
not guarantee it. Option B is false because deductive arguments can be invalid,
inductive can be weak. Option C reverses typical usage. Option D misstates the basis.
4. A politician argues: 'We should not listen to my opponent's proposal to reduce
taxes because he has been divorced twice.' This is an example of which fallacy?
A. Ad hominem (circumstantial)
B. Ad hominem (abusive)
C. Tu quoque
D. Straw man
Answer: A. Ad hominem (circumstantial)
The argument attacks the person's circumstances (divorce) rather than the proposal,
making it an ad hominem circumstantial. Abusive ad hominem directly insults
character (e.g., 'he is stupid'). Tu quoque accuses hypocrisy. Straw man misrepresents
the opponent's position.
Page 3
, 5. Consider the statement: 'All mammals are warm-blooded. Whales are mammals.
Therefore, whales are warm-blooded.' This argument is:
A. Valid and sound
B. Valid but unsound
C. Invalid but sound
D. Invalid and unsound
Answer: A. Valid and sound
The argument is deductively valid (if premises true, conclusion must be true) and
actually sound because both premises are true in reality. Option B would require a false
premise. Option C is impossible because an invalid argument cannot be sound. Option
D is incorrect.
6. Which of the following is an example of the fallacy of composition?
A. Every member of the team is an excellent player, so the team as a whole is excellent.
B. If you don't support this policy, you must be against progress.
C. Since many people believe in ghosts, ghosts must exist.
D. The economy improved after the new policy, so the policy caused the improvement.
Answer: A. Every member of the team is an excellent player, so the team as a whole
is excellent.
Fallacy of composition assumes that what is true of each part is true of the whole.
Option A applies individual excellence to the team, which may not hold due to synergy
issues. Option B is a false dilemma. Option C is appeal to popularity. Option D is post
hoc ergo propter hoc.
7. An argument states: 'Either we increase funding for public schools or our children
will remain poorly educated. We cannot increase funding, so our children will
remain poorly educated.' This argument commits which fallacy?
A. False dilemma
B. Denying the antecedent
C. Affirming the consequent
D. Modus tollens
Answer: A. False dilemma
The argument presents a false dilemma by offering only two options when other
possibilities exist (e.g., reforming school systems without increased funding). Denying
the antecedent and affirming the consequent are formal fallacies in conditional logic.
Modus tollens is valid.
Page 4
Complete Solution - 200 Questions and Answers Already Graded
A+ Premium Exam Tested And Verified
Subject Area Critical Thinking and Logic (WGU D265)
Description This exam assesses advanced understanding of logical reasoning, argument
analysis, and critical thinking skills, including identification of formal and
informal fallacies, evaluation of deductive and inductive arguments, and
application of logical concepts to complex scenarios. Aligned with WGU D265
Task 1 standards.
Expected Grade A+
Total Questions 200
Duration 3 hours
Learning Outcomes 1. Analyze and evaluate complex arguments for validity, soundness, and strength.
2. Identify and explain formal and informal fallacies in various contexts.
3. Apply logical principles to novel and interdisciplinary scenarios.
4. Construct and critique deductive and inductive reasoning chains.
Accreditation Accredited by the Northwest Commission on Colleges and Universities
(NWCCU) and compliant with US higher education standards for rigorous
undergraduate/graduate-level critical thinking coursework.
Page 1
,1. Consider the following argument: 'If the economic policy is sound, then
unemployment will decrease. Unemployment has decreased. Therefore, the economic
policy is sound.' Which of the following best characterizes the logical structure of
this argument?
A. Modus ponens; it is valid.
B. Modus tollens; it is valid.
C. Affirming the consequent; it is a formal fallacy.
D. Denying the antecedent; it is a formal fallacy.
Answer: C. Affirming the consequent; it is a formal fallacy.
The argument attempts to affirm the consequent: If P then Q, Q, therefore P. This is a
formal fallacy (affirming the consequent) and is invalid. Modus ponens is If P then Q, P,
therefore Q. Modus tollens is If P then Q, not Q, therefore not P. Denying the
antecedent is If P then Q, not P, therefore not Q.
2. A study concludes that people who drink red wine live longer than those who do
not. However, the study did not control for socioeconomic status, which correlates
with both red wine consumption and access to healthcare. Which fallacy is most
likely present?
A. Post hoc ergo propter hoc
B. Confirmation bias
C. Correlation does not imply causation
D. Hasty generalization
Answer: C. Correlation does not imply causation
The study confuses correlation with causation by ignoring a confounding variable
(socioeconomic status). Post hoc ergo propter hoc assumes temporal order, not
confound. Confirmation bias is selective thinking. Hasty generalization is a small
sample. The core issue is mistaking correlation for causation.
Page 2
,3. Which of the following best describes the difference between a deductive and an
inductive argument?
A. Deductive arguments guarantee the truth of the conclusion if the premises are true;
inductive arguments only make the conclusion probable.
B. Deductive arguments are always valid; inductive arguments are always strong.
C. Inductive arguments are used in mathematics; deductive arguments are used in science.
D. Deductive arguments rely on empirical evidence; inductive arguments rely on logical
necessity.
Answer: A. Deductive arguments guarantee the truth of the conclusion if the
premises are true; inductive arguments only make the conclusion probable.
Deductive arguments aim for certainty: if premises are true, conclusion must be true
(validity). Inductive arguments aim for probability: premises support conclusion but do
not guarantee it. Option B is false because deductive arguments can be invalid,
inductive can be weak. Option C reverses typical usage. Option D misstates the basis.
4. A politician argues: 'We should not listen to my opponent's proposal to reduce
taxes because he has been divorced twice.' This is an example of which fallacy?
A. Ad hominem (circumstantial)
B. Ad hominem (abusive)
C. Tu quoque
D. Straw man
Answer: A. Ad hominem (circumstantial)
The argument attacks the person's circumstances (divorce) rather than the proposal,
making it an ad hominem circumstantial. Abusive ad hominem directly insults
character (e.g., 'he is stupid'). Tu quoque accuses hypocrisy. Straw man misrepresents
the opponent's position.
Page 3
, 5. Consider the statement: 'All mammals are warm-blooded. Whales are mammals.
Therefore, whales are warm-blooded.' This argument is:
A. Valid and sound
B. Valid but unsound
C. Invalid but sound
D. Invalid and unsound
Answer: A. Valid and sound
The argument is deductively valid (if premises true, conclusion must be true) and
actually sound because both premises are true in reality. Option B would require a false
premise. Option C is impossible because an invalid argument cannot be sound. Option
D is incorrect.
6. Which of the following is an example of the fallacy of composition?
A. Every member of the team is an excellent player, so the team as a whole is excellent.
B. If you don't support this policy, you must be against progress.
C. Since many people believe in ghosts, ghosts must exist.
D. The economy improved after the new policy, so the policy caused the improvement.
Answer: A. Every member of the team is an excellent player, so the team as a whole
is excellent.
Fallacy of composition assumes that what is true of each part is true of the whole.
Option A applies individual excellence to the team, which may not hold due to synergy
issues. Option B is a false dilemma. Option C is appeal to popularity. Option D is post
hoc ergo propter hoc.
7. An argument states: 'Either we increase funding for public schools or our children
will remain poorly educated. We cannot increase funding, so our children will
remain poorly educated.' This argument commits which fallacy?
A. False dilemma
B. Denying the antecedent
C. Affirming the consequent
D. Modus tollens
Answer: A. False dilemma
The argument presents a false dilemma by offering only two options when other
possibilities exist (e.g., reforming school systems without increased funding). Denying
the antecedent and affirming the consequent are formal fallacies in conditional logic.
Modus tollens is valid.
Page 4
