PURPOSE: comprehensive developmental
language assessment items that range from
pre-verbal, interaction-based skills to
emerging language to early literacy
interactive, play-based assessment is
provided with comprehensive, reliable, and
trusted information about language skills for
children birth through age 7.
TESTING TIME : Birth through 11 months: 25-35 minutes 12 months through
2;11: 45-55 minutes 3;0 through 4;11: 50-60 minutes 5;0 through 7;11: 40-50
minutes
AGE RANGE:
0 to 7;11
Areas Assessed
Language Structure
Morphology
Syntax
Emergent Literacy Skill
Integrative Language Skills
Vocal Development
Social Communication
Play
Attention
Attention to Environment
Attention to People
Semantics
Vocabulary
Qualitative Concepts
Quantitative Concepts
Spatial Concepts
Time/Sequence Concepts
Gesture
PERCENTILE RANKS: PLS-5 provides age-based percentile ranks
for the Auditory Comprehension and Expressive Communication
standard scores and the Total Language composite scores
RELIABILITY:Test-Retest Stability Child is administered test twice under similar
conditions Time between both tests is minimized so that there’s no room for
development yet enough time so that practice or memory do not affect re-test Data
was collected from 195 children Intra-examiner with test ranging from 3-28 days Split
half reliability-tests internal consistency
VALIDITY: Concurrent validity- compares child performance to standard
(criterion) performance Construct: based on language
development studies and theory that language skills
improve with age Internal structure
Standarized
Test'Mean 100,
Standard Deviation
+/- 15