Information asks questions about general facts
The WAIS Information subtest asks the person to answer spoken questions about general facts involving events, objects, places, and people. Rather than discovering a new rule from the question, the person draws on general knowledge acquired before the assessment. The task therefore shows the breadth of facts they can retrieve across different areas.
In WAIS-IV, Information is a core subtest of the Verbal Comprehension Index (VCI) and contributes to FSIQ. In WAIS-5, it is a secondary verbal-comprehension subtest and contributes to the Verbal (Expanded Crystallized) Index rather than primary VCI or FSIQ.
What higher and lower Information scores can show
A correct answer depends on acquiring a fact, retaining it over time, retrieving it when asked, and expressing it aloud. The Information score reflects all four stages.
A higher scaled score indicates that a broad range of facts was available as usable knowledge. A lower score means that fewer answers could be retrieved correctly than in the same-age norm group. Education matters, but so do reading, work, hobbies, news, conversation, interests, long-term retention, and retrieval at the time of testing. Deep expertise in one subject is therefore not the same as broad general knowledge. The knowledge reasonably expected of adults also varies by culture.
After comparing the scaled score with same-age norms, compare Information with the person's Vocabulary and Similarities scores to see whether retrieving general facts is a relative strength or more demanding than defining words precisely or reasoning abstractly with concepts. How to read WAIS results explains how that comparison fits within the interpretation of the full profile.
How Information differs from Vocabulary and Similarities
Information, Vocabulary, and Similarities all draw on acquired language and meaning knowledge. They differ in what the person must do with that knowledge.
| Subtest | Direct task | Main processing involved |
|---|---|---|
| Information | Answer a question about a general fact | Acquiring, retaining, and retrieving general knowledge |
| Vocabulary | Explain the meaning of one word | Retrieving vocabulary, distinguishing precise meanings, and expressing a definition |
| Similarities | Explain what two words have in common | Comparing concepts, generating a shared relationship, and verbal abstract reasoning |
Information is the most direct of the three measures of stored factual knowledge. Vocabulary asks for precise word meaning; Similarities asks the person to use known concepts to form an abstract relationship.
BrainTypeIQ examines the precision and use of knowledge through vocabulary and verbal analogies
BrainTypeIQ does not directly test the quantity of general factual knowledge. Its Vocabulary (Antonyms) task examines precision of word meaning, while Analogies examines how acquired verbal knowledge is used to identify relationships. Together they represent the knowledge and language domain without turning it into a general-knowledge quiz.