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Copy of Peabody Picture Vocabulary Test, Fourth Addition

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on 4 December 2013

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Transcript of Copy of Peabody Picture Vocabulary Test, Fourth Addition

Peabody Picture Vocabulary
Test, Fourth Addition


Basic Assessment Information
Peabody Picture Vocabulary Test, Fourth edition (ppvt-4)
The PPVT–4 scale measures understanding of words in spoken English and assesses knowledge of vocabulary
Age range- 2 years and 6 months through 90+ years
Administration time- not timed but takes an average of 10-15 minutes
Short scoring time- special software or by hand
2 parallel test forms A and B
20 content areas (subtests)
Composite names- none
Deviation-type normative scores: standard scores, percentiles, normal curve equivalents (NCEs), and stanines
Developmental-type normative scores: age equivalents, grade equivalents
Growth scale value (GSV) scores
Forms A and B of
PPVT-IV
Validity & Normative Information
Validity
-Construct and Convergent Validity
- Expressive Vocabulary Test Second Edition: correlations were .80 to .84 (very high)
-Comprehensive Assessment of Spoken Language & Clinical Evaluation of Language Fundamentals Fourth Edition: correlations were from .37 to .79 (poor to good)
-Group Reading Assessment & Diagnostic Evaluation: the correlation was .63 (good)
-Peabody Picture Vocabulary Test III: correlation was .84 (very high)

Normative Information
Administered to 3540 participants ranging from the age of 2 years and 6 months through 90 years old. Administered to 1793 females and 1747 males.
-536 African American, 546 Hispanic, 2244 White, and 214 other races/ethnicity.
-1346 South, 621 Northeast, 819 North Central, and 754 from the West.
PPVT-IV in Action!
Reliability
The split-half reliabilities ranged from
.90 to .97
with an average of
.94.
(very, very good!)
Alternate form reliability data on Forms A and B were collected on a sample of 508 participants.
The results show alternative forms reliability ranging from
.87 to .93
with an average of
.89
(still very good!)
Stability data was collected on a sample of 340 participants with an average of a 4-week span between testing.
Test-retest coefficients ranged from .
92 to .96
with an average of .
93
. (you guessed it, very, very, good!)


Sample Page of PPVT-IV
Overall Impression
This is because....
1.) It’s easy and quick to administer and interpret

2.) Is relatively expensive in comparison to other tests
A complete version of the test that includes both Form A and Form B would cost about $400.
If a person wanted to purchase Form A or Form B separately it would cost about $220 respectively.
For a package of 25 protocols for either Form A or Form B it would cost about $42 respectively.
For a package of 100 protocols for either Form A or Form B it would cost about $147 respectively.)
Doesn't it make you want to
administer it right now?!
The End!!
Ultimately, this test deserves to be one of the most popular tests that are administered in psycho-educational and speech and language assessment!
Overall Impression (Continued)
It also has a simple required examinee response (pointing)
It is technologically sophisticated in that it has a well-developed ASSIST Scoring and Reporting System for computerized scoring.
Given the high quality of the technical features, detailed examiner's manual, and flexibility of uses and interpretations, there's a reason that this assessment is used so widely.
The only negative aspect of this test is it narrow scope--because it only measures the receptive (hearing) vocabulary of the standard American English language.
Full transcript