What is the primary purpose of the Peabody Picture Vocabulary Test?

The Peabody Picture Vocabulary Test (PPVT) is primarily designed to assess an individual's receptive vocabulary, which is an important aspect of verbal intelligence. It evaluates how well a person understands and can identify words, providing an estimate of their verbal cognitive abilities. By presenting images and asking the test-taker to match them with spoken words, the test measures the individual's ability to comprehend language, which is a key indicator of verbal intelligence.

In contrast, some of the other options focus on specific skills that the PPVT does not measure directly. For instance, assessing speech clarity is more related to articulation and phonetic accuracy, while evaluating language structure pertains to grammar and syntax rather than vocabulary comprehension. Measuring articulation skills specifically targets the pronunciation and clarity of speech sounds, which is also distinct from the overall assessment of vocabulary and verbal intelligence provided by the PPVT.