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The Peabody Picture Vocabulary Test-4 (PPVTTM-4) is a widely used measure of receptive vocabulary skills that does not require any reading or writing on the part of the subject. There are 228 test items separated into 19 sets of 12 items each. The PPVTTM-4 has two parallel forms which can be used to measure change over time or compare performance at two time points without confound of practice effects. The test can also be used to screen patients according to their level of verbal ability. It is frequently used in research as a proxy for intellect.

Administration: Paper-and-pencil, face-to-face, individual; a new digital stimulus book is now available for this edition.

Age range: 2;6–90+ years

Administration Time: Approximately 10–15 minutes

Training: Easy to learn measure, practice is recommended. Clinical interpretation requires degree in psychology, neuropsychology, speech/language pathology; however, can be administered and scores can be obtained by trained research assistants for research purposes.

Scoring: Web-based/computerized or manual

Norms: Age and grade-based standard scores are given, with mean = 100 and standard deviation = 15. Percentiles, normal curve equivalents (NCEs), stanines, age and grade equivalents, and Growth Scale Value (GSV) can also be calculated.

Publication: 2007 (in use over 50 years)

Psychometrics: Developed over a five-year period, the PPVTTM-4 test was standardized on a national sample of individuals ages 2:6–90+ years. More than 5,500 individuals were tested; data from approximately 3,500 subjects was used for the normative scores. The sample matches the U.S. Census for gender, ace/ethnicity, region, socioeconomic status (SES), and clinical diagnosis or special education placement.