117
Subtest Information...
-there are no actual subtests but the
EVT-2 does assess 2 seperate areas
-labeling and synonyms
Administering the Test..
Scoring the test...
-Raw:14
-Standard:78
-Percentile: 7%
-Norm Curve Equivalent: 19
-Stanine: 2
Confidence Interval:95%
YES
NO
YES
NO
YES
Adequate Sample Size
Clearly Defined Standardization Sample
Systematic Item Analysis
Measures of Central Tendency
Type of Administration...
-Individual
Type of test...
-language
Who may administer...
Purpose of the test...
About the test...
It can be administered by any professional who:
•Is familiar with the test
•Has received training in the process of individual test administration
•Has read the methods for computing raw scores and using norm tables
However, in order to interpret the test, formal coursework in assessment is necessary, and the individual must understand the strengths and limits of derived scores as well as errors of measurement.
-Be careful of labeling
EVT-2 (Expressive Vocabulary Test, Second Edition)
Author: Kathleen T. Williams, PhD, NCSP
Publisher: Pearson
Address of Publisher:
NCS Person, Inc.
PO Box 1416, Minneapolis, MN 55440
-Norm referenced instument that assesses expressive vocabulary and word retrieval for children and
adults.
-Measures expressive vocabulary of
- labeling
- synonyms
-Word retrieval is assessed by comparing standand scores from the EVT-2 and the PPVT 4
Age Parameters...
-2 1/2-90+ years
Scoring Information...
•Score is calculated by subtracting the number of incorrect responses from the highest celing item.
•Correct responses are on the record form, if they respond incorrectly they receive 0 points and if they respond correctly the receive 1 point.
•They may change their answer and the administrator must score the new response
•If there is a multiple word response that contains the correct response, count it as correct unless the combined response is incorrect.
•It is not a test of articulation- do not penalize articulation errors
•Familiarization is ok (horsey, ducky, etc.)
•Shortened versions are ok
•Some foreign terms and slang terms are ok if they are listed in the reference materials
•Response should be correct based on visual prompt not auditory prompt.
Test Materials...
Basal...
- easel (form A or B)
- manual
- 25 record forms
- carrying bag
5 correct
If the child is under the age of 4, it may not be possible to establish a basal
Administration Time...
-average of 10-20 minutes
-briefer for young children
-longer for adults
Ceiling...
5 incorrect
Qualifications of Test Administrator or Scorer
Description of Test Procedures
Evidence of Concurrent Validity
Evidence of Inter-Examiner Reliability
Evidence of Predictive Validity
Estimate of Test-Retest Reliability