Logical Reasoning Skill-Builders: Analyzing Flaws, Methods, and Parallels

Flaw in the Reasoning

A question type that asks you to identify what is wrong with an argument's reasoning.

Conclusion

The main point or claim that the author is trying to prove in an argument.

Premises

The reasons or evidence offered to support the conclusion in an argument.

Correlation vs. Causation

The flaw of concluding that one event causes another purely based on their correlation.

Unrepresentative Sample

Drawing broad conclusions based on a small or biased subset of a population.

Part-to-Whole Fallacy

Assuming that what is true for a part must be true for the whole.

Necessary vs. Sufficient Confusion

Mistaking a necessary condition for a sufficient one in reasoning.

Equivocation

Using a key term in two different senses within an argument.

Ad Hominem

Attacking the person making an argument rather than addressing the argument itself.

False Dilemma

Presenting only two options when more exist.

Parallel Reasoning

A question type asking for an answer choice that has the same logical structure as the stimulus.

Abstraction process

Transforming a specific argument into a general template to compare structures.

Quantifiers

Terms like 'all', 'some', 'most' that indicate the scope of a statement.

Denial of Antecedent

A logical flaw where one assumes that if A is false, then B must also be false.

Affirming the Consequent

A logical error where one concludes that A must be true because B is true.

Signature Patterns

Common types of flawed reasoning identifiable by their structure.

Method of Reasoning

A question type that asks how an author reaches their conclusion or supports their argument.

Induction

Reasoning from specific examples to a general conclusion.

Deduction

Applying a general rule to reach a specific conclusion.

Causal Relationship

A connection where one factor is understood to produce an effect on another.

Citing Evidence

Referring to specific data or facts to support a conclusion.

Analyzing Structure

Identifying relationships between parts of an argument to understand its logic.

Ruling Out Alternatives

Eliminating possible explanations to arrive at a favored conclusion.

Intermediate Conclusion

A conclusion that supports a further conclusion within an argument.

Common Mistakes in Reasoning

Common errors made in arguments, like misidentifying the conclusion or confusing premises.

Pre-phrase

Articulating the flaw in an argument before reviewing answer choices.