cross sectional method
many subjects are selected from different age levels and are studied simultaneously for arelatively brief duration.
most of them cannot convey much meaning when produced in isolation although in context they modulate (change) meaning.
other grammatical mophemes include inflection of english language: adding ed to a word to indicate past tense; adding 's to a word to indicate possesion.
mean length of utterance (MLU)
the average length of a child's multiple utterances; the length is measured in tems of morphemes.both bound and free.
before he or she can produce a completenegative sentence the child negates something by saying a single word: "NO"
rouchly the same as purposes or intentions in the linguistic view, and they are nothing other than effects of speech on others.
speech that serves th purpose of gettin various kinds of help from others (ex: i want it)
Language acquisition device (LAD)
children are born with an innate mechanism of language aquisiton. LAD integrates the universal and the unique aspects of the language and thus helps the chil learn the language in a relatively short time
states that lanugae acquistion is made possible by cogniton and general intellectual processes. (according to this view, knowledge comes first and language later)
limited language skils
descrived as a language delay, lanugage disorder, langugage guage impairment, or language problem.
are difficulties in sentence construction, as expressed in grammaticaly inappropriate forms
children whoare not totally isolated but experience reduced social contact also may show a slowe than normal rate of language acquistion.
a process of observation and measurement of a clients language behaviors to determine a)wheter a clinical problem exists; b)the nature and extent of the problem, if it exists; and c)a couse ofaction to help the child and the family
frequently administered to determine whetertha child lags behind children of his or her age
a masure of language vital to a diagnosis of language disorders in children. the procedure of recodin aperson language productions under relatively normal conditions and whenever possible whith the help of conversational speech
a statement abotu the likely future course of the disorder when certain steps are take or when nothins is done
the production ofnew skills in new environments without positive or corrective feed back
the sustained production of newly (clinically) established skills over time and across situations
a procdure in which naturally occurring opportunites for communication are used to teach language
cognitive or semantic approach
emphasis not on what the chil says but on what the knows, about things and events
which means that a behavior learned in a particular situation is bound to that situation only. Children with autism ae like to be extremlely stimulus bound