Civil Service Verbal Reasoning Test Logical Inference and Conclusion Drawing Syllabus

What does it mean to 'draw the best supported conclusion' rather than a possible conclusion?

Choosing the conclusion most directly and fully backed by the passage's stated evidence, with the least added assumption — not merely one that could conceivably be true.

When several conclusions seem plausible, which one should you select in a verbal reasoning test?

The one that requires no information beyond the passage and follows most directly from the stated facts — minimal inferential leap.

Define 'assumption injection' as an error in verbal reasoning.

Wrongly treating a statement as supported by adding an unstated assumption that the passage never provides, thereby filling a gap the text leaves open.

A passage states a company increased its marketing budget. The statement claims sales therefore rose. What error and what verdict?

Assumption injection (assuming budget causes higher sales). Verdict: Cannot Say — the passage gives no information on actual sales.

Define 'real-world knowledge bias' in verbal reasoning.

The error of marking a statement True or False based on facts you know from the real world rather than what the passage actually states.

A passage describes a fictional country where 'the capital is Mira.' You know the real capital is different. How should you judge a statement repeating 'the capital is Mira'?

True — judge by the passage only. Your real-world knowledge is irrelevant; the passage states it.

Define a 'scope distortion' between a statement and a passage.

When a statement changes the breadth of a claim — e.g. the passage says 'some managers' but the statement says 'all managers', or narrows 'employees' to 'one department'.

Define a 'degree distortion' in a test statement.

When a statement exaggerates or weakens the intensity/quantity of the original claim — e.g. passage says 'slightly improved' but statement says 'dramatically improved'.

A passage says 'sales rose modestly.' The statement says 'sales rose sharply.' What is the verdict and why?

False (or at least Cannot Say) due to degree distortion — 'modestly' contradicts 'sharply'; the passage does not support the stronger degree.

What is the recommended first step when reading a verbal reasoning statement before answering?

Identify the exact claim and its quantifiers/qualifiers, then check whether the passage explicitly proves, disproves, or leaves it open.

If a passage and a statement use different but synonymous wording, can the statement still be True?

Yes — meaning, not exact words, matters. If the passage's meaning entails the statement, the verdict can be True despite different phrasing.

What verdict applies when a statement is partly supported and partly unsupported by the passage?

Cannot Say (or False if a part is contradicted) — every component of the statement must be supported for a True verdict.

Explain the trap of a statement that is 'true in real life but not stated in the passage.'

It tempts a 'True' answer via real-world knowledge bias, but because the passage does not establish it, the correct verdict is Cannot Say.

What is the logical contrapositive of 'If P then Q', and is it valid?

'If not Q then not P' — it is logically equivalent to the original and therefore valid.

Is the converse 'If Q then P' logically equivalent to 'If P then Q'?

No. The converse is not equivalent; assuming it is constitutes the fallacy of affirming the consequent.

A passage says 'Only members may vote.' The statement says 'All members vote.' What verdict?

Cannot Say — 'only members may vote' restricts who is eligible, but does not state that all members actually do vote.

Distinguish 'necessary condition' from 'sufficient condition.'

A necessary condition must hold for the outcome (without it, no outcome); a sufficient condition guarantees the outcome (with it, the outcome follows). They are not interchangeable.

In 'A degree is necessary for the role,' does having a degree guarantee getting the role?

No — necessary does not mean sufficient. A degree is required, but other conditions may also be needed.

What is the 'hasty generalisation' fallacy?

Drawing a broad universal conclusion ('all', 'always') from too few or unrepresentative cases stated in the passage.

Why is the statement 'The policy is unfair' usually a Cannot Say if the passage only gives factual details?

'Unfair' is an opinion/value judgement; unless the passage explicitly states this evaluation, a purely factual passage cannot prove it.

A passage gives statistics for 2020 only. A statement claims a trend 'every year.' What verdict and what distortion?

Cannot Say — scope distortion across time. One year's data cannot support a claim about every year.

What does the word 'imply' require for a True verdict versus what 'state' requires?

'State' needs explicit text; 'imply' allows a verdict of True if the conclusion necessarily follows. But the implication must be logically forced, not merely plausible.

How should you treat a double-negative statement like 'It is not untrue that X'?

Simplify it: two negatives cancel, so it asserts 'X is true.' Then judge X against the passage normally.

A passage says 'Few attendees complained.' Statement: 'No attendees complained.' Verdict?

False — 'few' means a small number did complain, which contradicts 'none'.

What is the correct verdict strategy when a statement adds a causal claim ('because', 'due to') not made in the passage?

Cannot Say — correlation or sequence stated in a passage does not establish causation unless the passage explicitly asserts the cause.

Compare 'True' and 'Cannot Say': what single test separates them?

Ask: does the passage FORCE this statement to be true? If yes, True. If the statement could be true or false consistent with the passage, Cannot Say.

Compare 'False' and 'Cannot Say': what single test separates them?

Ask: does the passage make this statement impossible/contradicted? If yes, False. If the passage merely fails to address or disprove it, Cannot Say.

A passage says 'All accredited centres passed inspection.' Statement: 'Centre X, which is accredited, passed inspection.' Verdict and reasoning?

True — valid entailment by modus ponens: all accredited centres passed, X is accredited, therefore X passed.

Why is it dangerous to answer based on the 'overall gist' rather than the precise wording of a statement?

Because scope, degree, and quantifier shifts hide in precise wording; the gist may seem supported while the exact claim is distorted, leading to a wrong verdict.

Summarise the three-step process for answering any Civil Service verbal reasoning item.

1) Read the statement and pin down its exact claim, quantifiers and qualifiers. 2) Locate the relevant passage text. 3) Decide using the passage only: forced true = True, contradicted = False, otherwise Cannot Say.