- The reasoning above is flawed for which of the following reasons?
Answer: It treats the absence of one kind of risk as establishing the absence of all relevant risks.
The argument equates insurance against deposit loss with the elimination of all investment risks, such as inflation and opportunity risk. Eliminating one risk does not establish overall superiority. The other choices describe flaws (temporal assumption, labeling, testimony, and causal inference) not present here.
- The reasoning above is flawed for which of the following reasons?
Answer: It treats characteristics that are common among successful firms as if they were by themselves sufficient to ensure success.
The argument moves from 'most successful firms have traits T' to 'having T makes success likely,' illegitimately treating a typical feature of successes as sufficient. Many firms with T may still fail. The distractors describe other flaws (necessity/sufficiency reversal, weak analogy, hasty generalization, evidence dismissal) not shown here.
- The reasoning above is flawed for which of the following reasons?
Answer: It confuses a comparison of percentages with a comparison of absolute numbers, ignoring differences in base rates.
A higher percentage increase does not show which city has more thefts without knowing the initial totals. The argument does not hinge on sampling, false dichotomy, or source-based dismissal. It also does not generalize from a single case.
- The argument's reasoning is most vulnerable to criticism on the grounds that it
Answer: illicitly converts a statement about most members of one group into a statement about most members of another group
The argument starts from 'most council members are lawyers' and slides to 'most lawyers are council members.' That reversal is illegitimate: most of a small group (the council) being lawyers tells you nothing about what most of a large group (the city's lawyers) do. This is the flaw described by the option about illicitly converting a claim about most of one group into a claim about most of another. The option about multiple contributing causes is wrong because the argument's error is not causal—it never disputes why the council drafts legalistic policy. The option about absence of contradicting evidence is wrong because the argument cites positive evidence (the council's makeup), not a lack of counterevidence. The option about generalizing from a handful of unrepresentative cases is wrong because the argument reasons from a majority claim, not from a few atypical examples. The option about an ambiguity in 'lawyer' is wrong because the term keeps a single, consistent meaning throughout; nothing shifts. Only the conversion of quantified statements captures what actually goes astray.
- The reasoning above is flawed for which of the following reasons?
Answer: It infers a causal explanation solely from a temporal correlation while overlooking other plausible explanations.
The argument concludes the buses caused the noise decrease merely because the drop followed the ban, ignoring alternative causes. Choice A captures this unwarranted causal inference from correlation. The other options describe flaws (analogy, ad hominem, legality-as-benefit, appeal to ignorance) that the argument does not commit.
- Either we raise taxes or cut school funding. Since taxes cannot rise, cuts are forced. Which flaw?
Answer: Assumes only two options exist
The argument assumes raising taxes and cutting school funding are the only possibilities, but other options could exist. That makes it a false dilemma. You might be tempted to call it denying the antecedent, but that flaw applies to a conditional statement, not to an either/or choice.
- The reasoning above is flawed for which of the following reasons?
Answer: Illicitly shifts the meaning of a critical term in the course of the argument.
The argument equivocates on 'miracle,' using a technical sense to condemn a figurative usage. It does not beg the question or restrict options. Nor does it generalize from atypical cases or infer causation from correlation.
- The reasoning above is flawed for which of the following reasons?
Answer: It equivocates between statistical significance and practical magnitude, treating any statistically significant finding as evidence of a large effect.
The argument slides from 'the difference is statistically significant' to 'the effect is large enough to justify a campus-wide policy.' But statistical significance only indicates that a difference is unlikely due to chance; it says nothing about the size or practical importance of the effect. Treating significance as proof of a big effect is the equivocation, so that choice is correct. The necessary/sufficient option misdescribes the argument: it never sorts conditions into necessary versus sufficient roles. The self-contradiction option is wrong because the argument never rejects the coffee premise it relies on—it endorses it throughout. The 'not perfectly effective' option is wrong because the argument overstates the policy's benefit rather than dismissing it for imperfection. The anecdote option is wrong because the evidence cited is a controlled study, not a single student's story.
- The reasoning above is flawed for which of the following reasons?
Answer: It equivocates between being accountable and being willing to accept blame regardless of fault.
The argument conflates 'accountability' with accepting blame even when not at fault. Choice A identifies this equivocation on the key term. The remaining options describe ad hominem, appeal to ignorance, tradition, or hasty generalization, none of which occurs here.
- A survey of a local high school revealed that 90% of students prefer online classes over in-person classes. Therefore, all students in the country prefer online learning.
The reasoning above is most vulnerable to criticism on the grounds that it
Answer: extends the survey results to a broader population without justification
The argument concludes that all students in the country prefer online learning based on a survey of one local high school showing 90% preference for online classes. The reasoning commits a hasty generalization by inappropriately extending findings from a small, specific sample to an entire national population without justification. Choice D accurately identifies this flaw as extending survey results to a broader population without justification. Choice A focuses on representativeness but misses that the real issue is the unjustified leap from local to national conclusions. The key insight here is recognizing when arguments make unwarranted generalizations from limited samples to vastly larger populations.
- A technology firm observes that its most successful projects are led by experienced managers. Therefore, the key to successful projects is having experienced managers.
The reasoning above is most vulnerable to criticism on the grounds that it
Answer: confuses correlation between manager experience and project success with causation
The argument concludes that the key to successful projects is having experienced managers based on observing that the firm's most successful projects are led by experienced managers. The reasoning commits the correlation-causation fallacy by treating an observed association between manager experience and project success as evidence that experienced managers cause success. Choice C correctly identifies this flaw by noting the confusion of correlation with causation. Choice E points to reverse causation as an alternative explanation but doesn't address the core logical error of assuming causal direction from correlational observation. In business contexts, always examine whether observed patterns truly demonstrate causation or merely correlation.
- The reasoning above is flawed for which of the following reasons?
Answer: It bases a broad conclusion on a small, unrepresentative sample drawn from a biased setting.
Surveying a handful of patrons at a specialty cafe during limited hours is unlikely to represent the city's residents generally. The argument does not rely on expert authority, temporal uniformity, or an appeal to ignorance. The possibility of changing preferences is not the core issue; the sampling is biased.
- The reasoning above is flawed for which of the following reasons?
Answer: It generalizes from an unrepresentative sample to a broad population.
Website commenters are a self-selected group that is unlikely to represent the broader population. Generalizing their preferences to all listeners is an unrepresentative sample flaw. The other options describe different errors (false dichotomy, appeal to popularity, appeal to ignorance, and temporal change) not made here.
- A university dean argues: "Every student who has won our top academic scholarship in the last five years completed an honors thesis. Completing an honors thesis clearly helps students develop advanced research skills. So if we want more students to win that scholarship, we should require all students to complete an honors thesis. That requirement will ensure that many more students win the scholarship." Which one of the following describes a flaw in the reasoning above?
Answer: It treats a condition that may be necessary for winning the scholarship as if it were sufficient to ensure winning it.
The dean observes that all recent scholarship winners completed honors theses, then concludes that requiring all students to complete theses will ensure many more win the scholarship. This confuses a necessary condition (all winners had theses) with a sufficient condition (having a thesis guarantees winning). Answer (C) precisely identifies this flaw—the argument treats something that may be necessary for winning as if it were sufficient to ensure winning. Answer (E) raises an interesting alternative about developing research skills differently, but misses the logical error of confusing necessary and sufficient conditions. When you see "all X's have Y," be careful not to conclude that having Y guarantees becoming an X.
- The argument's reasoning is flawed because it does which one of the following?
Answer: Mistakes a necessary condition for rapid growth for a sufficient one.
Having a strong research team may be necessary for rapid growth, but the argument assumes it is sufficient to guarantee it. That confuses a necessary condition with a sufficient one. The remaining choices describe unrelated errors (post hoc, absence of evidence, faulty analogy, part-whole) not committed here.
- The argument exhibits which one of the following reasoning errors?
Answer: Illegitimately infers a collective endorsement from disjunctive individual endorsements.
The argument moves from each member supporting at least one of two measures to the council supporting both, illegitimately aggregating disjunctive individual support into collective support for each. That confuses individual disjunction with group endorsement. The other answers describe errors (legalistic appeals, equivocation, incompatibility assumptions, ad hominem) not made here.
- The reasoning above is flawed for which of the following reasons?
Answer: It treats a necessary condition for certification as if it were sufficient for certification.
Passing the exam is required for certification, but passing alone does not guarantee certification. The argument treats this necessary condition as sufficient and then draws further conclusions from that mistake. The other options describe unrelated errors not made here.
- The argument's reasoning is most vulnerable to criticism on the grounds that it
Answer: Treats two options as the only possibilities when others are available.
The director falsely limits the choices to two, ignoring other plausible strategies for reducing congestion. The reasoning does not hinge on a causal correlation, a sampling issue, or a temporal assumption. Nor does it mistake necessary for sufficient conditions.
- The reasoning above is flawed for which of the following reasons?
Answer: It generalizes from a self-selected, unrepresentative group to a broad population.
The poll reflects the views of app users who chose to respond, not a random sample of adults. Choice D identifies the sampling bias and unrepresentative generalization. The other options describe different flaws (appeal to ignorance, relative vs. absolute, causation, unwarranted extrapolation) not at issue.
- Which one of the following most accurately describes a flaw in the argument?
Answer: It bases a prediction on a sample that is not representative of the electorate.
The poll reflects the preferences of an online subscriber base, which is not representative of the citywide electorate. Concluding a citywide outcome from that biased sample is flawed. The other options describe errors (necessary/sufficient, part-whole, post hoc, inertia) the argument does not make.
