Overview: Inferences

What is an Inference?

An inference is a conclusion drawn from given facts or evidence. It is the reader's or listener's ability to read between the lines and reach a conclusion that is not explicitly stated. More than one inference may be reasonably drawn from the same fact, but in examination settings an inference must be based only on the information provided in the passage, not on outside knowledge or assumptions.

Deriving inferences requires grasping the meaning of a passage even when not all information is given directly. Authors provide clues about plot, characters, setting, purpose or attitude; the task of the reader is to combine those clues and draw a logically supported conclusion. In formal inference questions, the correct inference should follow logically from the passage and be the best-supported choice among the options.

Fact: Anil has started devoting 15 hrs to study seriously for BPO.

• Anil is a hard working person.
• Anil is likely to crack BPO.
• Anil is much focused, determined and has lots of patience.

All three of the above are possible inferences from the fact. In ordinary life many inferences are plausible; in test situations only those conclusions that are directly and reasonably supported by the given material should be selected.

Inference Questions - Typical Formats

Inference-based questions commonly take one of the following forms:

• The question stem contains words such as infer, imply or suggests.
• Most likely, the passage is a part of . . .
• The writer would probably agree (or disagree) with which statement?
• The piece most likely appeared in . . .
• The author implies that the best way to check crime would be . . .
• Which one would the author quote as an example of liberalisation as described here?

Strategy to Approach Inference Questions

• Tackle the passage: Read the passage carefully. Do not get bogged down in minor details; identify the main idea, the author's purpose, and the relationship among the paragraphs. Note the author's tone and whether statements are presented as fact, opinion or hypothesis.
• Rephrasal: Rephrase the question in your own words to clarify what it asks. Pay close attention to qualifier words such as except, but and not - they are crucial to selecting the correct option.
• Choices: Read the answer choices and look for the one best supported by the passage. Often the correct choice follows from combining two or three sentences or ideas in the passage.
• Elimination: Discard options that are clearly unsupported, distorted, or outside the scope of the passage. Do not anticipate an answer before looking at choices; instead, evaluate how well each option is grounded in the passage.

Types of Inferences Commonly Tested

• Direct inference: A conclusion that follows almost immediately from a single sentence or a closely related pair of sentences in the passage.
• Combined inference: A conclusion that follows from connecting two or more parts of the passage.
• Probable inference: A likely conclusion that is not certain but is the most reasonable interpretation given the passage.
• Invalid inference: A choice that introduces facts not present in the passage, distorts the passage, or relies on outside knowledge.

Avoid the Following While Making Inferences

Explicit Answers

• An inference is not something that is directly stated in the passage. Any answer choice that merely repeats or rephrases a sentence from the passage is not an inference in the test sense and is therefore incorrect for inference-type items.
• If the fact stated is 'I am happy', an answer that restates this as 'I am not sad' is simply a restatement, not an inference. When stuck between choices, ensure that the chosen option has a clear basis in the passage.

Distortions

• Be alert to choices that twist the relationship between ideas or misattribute opinions and facts; such distortions make an otherwise plausible option incorrect.

Extreme Answers

• Watch for absolute words such as always, never, all, none, any. Passages typically include qualifiers, so extreme generalisations are rarely supported.

Unrelated Answers

• Reject options that introduce ideas not addressed by the passage.
• Prefer inferences that remain close to the passage rather than those that rely heavily on outside knowledge or speculation.

Examples of Inferential Questions

1. Read the given facts/passage and answer the question that follows:

People are always less happy to accept scientific data they feel contradicts their preconceived beliefs. No surprise here; no human likes to be wrong. But science isn't supposed to care about preconceived notions. Science, at least good science, tells us about the world as it is, and not as some wish it to be. Sometimes what science finds is consistent with a particular religion's wishes. But usually it is not.

Q: What can be inferred about good science? Select from the given options.
(a) A good science is well received by the educated people.
(b) A good science is based on concrete results obtained through testing the hypothesis.
(c) A good science and religion are same.
(d) A good science will always prove the general populace wrong.
Sol: Sol: Answer to the above question is option 2 and this can be drawn on the basis of the line "But science isn't supposed to care about preconceived notions. Science, at least good science, tells us about the world as it is and not as some wish it to be\".

Option 1 is wrong as there is no relevant point in the passage to draw this conclusion.

Option 3 is too farfetched and it may not be always true for science and religion to be same.

Option 4 is wrong as there is no fact in the passage to support this option.

2. The Beirut Law School was a centre for the study of Roman law in ancient days in Beirut. It thrived under the patronage of Roman emperors and was the Roman Empire's pre-eminent centre of law until 551 AD. The Roman law schools had repositories of imperial constitutions and formalized the study and practice of law to relieve the busy imperial courts. The archiving of imperial constitutions eased the task of judges in referring to legal precedents.

Q: What can be inferred from the passage?
Sol: Here are two inferences: one based solely on the passage and the other based on the passage and your own knowledge.

(a) The Beirut Law School as a repository for imperial constitutions and as a centre of law allowed Roman judges to speed up the cases in imperial courts.

(b) With the destruction of the Beirut Law School and no imperial constitutions and formalized laws, the administration of law and justice in Roman Empire suffered.

Statement A: Statement A is supported by the passage as it reveals that the law schools were "to relieve the busy imperial courts." It says nothing far removed from this idea.

Statement B: Statement B, however, goes far away from it. Though logically, the destruction of the law school would hamper the administration of justice, the passage does not even hint at it. Therefore, we always choose an inference close to the passage.

How to Validate an Inference - Practical Checklist

• Check whether the option follows from one or more statements in the passage without introducing new facts.
• Ensure no key word in the correct option contradicts the passage (for example, an unqualified extreme).
• Confirm that the option does not depend on specialised outside knowledge; it should be answerable from the passage alone.
• Prefer the option that is nearest in scope to the passage rather than the option that is broader or more dramatic but less supported.

Common Traps and How to Avoid Them

• Choices that look plausible because they reflect general knowledge are often traps if they are not grounded in the passage.
• Watch for half-truths: options that combine a correct idea with an incorrect qualification.
• Beware of attribution errors where a statement of fact is turned into an attributed belief or vice versa.
• When in doubt, go back to the exact sentence(s) in the passage that are relevant and test whether the option is an unavoidable conclusion from those lines.

Final advice: Inference questions reward careful reading and logical restraint. Do not read into the passage what is not given. Select the choice that can be most directly and reasonably supported by the passage.