Step 1: Understanding the Concept:
The question asks to classify Raven's Progressive Matrices, a widely used psychometric test. We need to identify its most defining characteristic from the given options.
Step 2: Detailed Explanation:
(A) Non-verbal test: This is the most fundamental characteristic of Raven's test. It is composed of visual geometric designs (matrices) from which a section has been removed. The test-taker must choose the missing piece from a set of options. This design deliberately minimizes the influence of language and cultural knowledge, making it a premier non-verbal measure of fluid intelligence.
(B) Group test and (C) Individual test: Raven's Progressive Matrices can be administered both to groups and to individuals. Since it can be either, neither of these options is its single defining feature. Its non-verbal nature is constant regardless of the administration format.
Step 3: Final Answer:
The most accurate and defining classification for Raven's Progressive Matrices is that it is a non-verbal test.