Measure extent of some dimension
e.g. How well has little Johnny mastered English? Does Kanzi reallly have the
comprehension of a seven year old human?
Some example tests
BinetŐs intelligence test
Pilot selection tests
Bayley scales of infant development
Illinois test of psycholinguistic abilities
Test manuals contain:
How to give it?
Information on scoring
Information on evaluating individual
Comparison with reference group
Language tests reflect the current conception of language
knowledge at the time of the testŐs development.
Test manual information
Compare results from two screenings
agreement with clinical judgment, relation with other measures
of language development
test content samples range of language knowledge and skills
(JL, this is a major advance over older measures, especially in regards to
Interpretation of scores (standardization)
Language variation status (pronunciation differences in
dialects of English)
Judgment of possible risk status on morpho-syntax and
wh-questions and repetitions based on number of errors
Authors determined norms for children ages 4 to 9 on these
items in terms of number of items passed.
Children found at risk on the screening test are to be
evaluated in more detail, using perhaps the DELV criterion referenced
test. This test more thoroughly
evaluates four language ŇdomainsÓ or levels – syntax, pragmatics,
semantics, and phonology. More on
this test later.