Question

Identify the subtests of the Wechsler Adult Intelligence Scale from the following:
A. Arithmetic
B. Digit symbol
C. Similarities
D. Object assembly
Choose the correct answer from the options given below:

• A. A, B and D only
• B. A, B and C only
• C. A, B, C and D
• D. B, C and D only

Hint:

The WAIS is famously divided into Verbal and Performance scales (in older versions). Remember examples for each: {Verbal} includes Similarities, Vocabulary, Arithmetic. {Performance} includes Picture Completion, Block Design, Object Assembly. Knowing this division helps quickly identify subtests.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The question asks to identify which of the listed tests are subtests of the Wechsler Adult Intelligence Scale (WAIS). The WAIS has evolved through several editions, but many core subtests remain well-known.
Step 2: Detailed Explanation:
Let's review each of the options:

A. Arithmetic: This is a classic WAIS subtest, typically part of the Verbal Scale (and later, the Working Memory Index). It measures concentration and numerical reasoning.
B. Digit Symbol-Coding: This is a core WAIS subtest, part of the Performance Scale (and later, the Processing Speed Index). It requires the test-taker to match symbols to numbers according to a key.
C. Similarities: This is a core subtest of the Verbal Scale (and later, the Verbal Comprehension Index). It assesses abstract verbal reasoning.
D. Object Assembly: This was a subtest on the Performance Scale of earlier versions of the WAIS (e.g., WAIS-R, WAIS-III), requiring the assembly of puzzles. While it was removed from the most recent WAIS-IV, it is historically a well-known WAIS subtest.
Since all four have been part of the WAIS battery at some point, they are all valid answers.
Step 3: Final Answer:
All four options—Arithmetic, Digit symbol, Similarities, and Object assembly—are recognized as subtests of the Wechsler Adult Intelligence Scale. Therefore, the correct choice includes A, B, C, and D.