| Measure Description | Source of measure | Dunn, L. M., & Dunn, D. M. (2007). PPVT-4: Peabody picture vocabulary test. Pearson Assessments. |
| Mode of administration | Direct assessment |
| Age range for use | 2.5-90+ years |
| Domains Assessed | Receptive vocabulary (individual's understanding of words s/he hears) |
| Related Measures | |
| Burden | Training needed to administer | Need master's degree in relevant field, certification in relevant field, healthcare license/degree, or formal training in relevant field and in administration of assessments |
| Minutes to complete | 10-15 |
| # of items | Variable |
| Cost | Yes |
| Adaptation for AIAN use | Adapted | No |
| Developer allows adaptation? | No |
| Used with AIAN populations? | Yes |
| Psychometrics | Norm-referenced | Yes |
| AIAN: Cronbach's alpha range | Not yet available |
| AIAN: Evidence of validity | No recent data available. In a 1988 study, the PPVT demonstrated expected relations with verbal IQ, measured by the Weschler Intelligence Scale for Children-Revised in a sample of Native American children who lived on a Navajo Reservation (Naglieri & Yazzie, 1988). |
| Other populations: Cronbach's alpha range | Per developer, reliability coefficients are .90 or higher. |
| Other populations: Evidence of validity | Per developer, validity coefficients are .90 or higher. |
| Source | Developer | Pearson |
| Link | pearsonclinical.com |
| Summary | Comments about sensitivity to change | Children's PPVT scores improve following intervention, including both direct vocabulary instruction and a language/literacy intervention delivered in Head Start classroom (Coyne, McCoach, & Kapp, 2007; Wasik, Bond, & Hindman, 2006). |
| General remarks | PPVT was standardized using a demographically representative U.S. sample of over 5,500 individuals ages 2.5-90+. It should be noted that, among low-income families, the PPVT seems to identify more children as having language delays than do other measures of language ability (Qi, Kaiser, Milan, & Hancock., 2006). |