function words (closed class of words), takes the place of a noun, can be singular or plural
derivational morphemes
have meaning (create new words), can change part of speech of the root word, bound, can be suffixes or prefixes
ex: drivable, greenish, rewrite, *capable is an example of a false morpheme
inflectional morphemes
have more function than meaning, required mostly to be grammatically/syntactically correct in a sentence, never change part of speech of the root word, bound, always suffixes (8 in English)
dialect
mutually understandable to speakers of the same language, all dialects are linguistically appropriate/grammatical within the group of speakers who use that dialect
different dialect rules
in general American English, a plural is always required
ex: you have two pens, you have two pen (ungrammatical)
vs.
in African American English and Appalachian English, a plural does not need to be used
ex: you have two pens and you have two pen are both grammatical
morpheme errors
errors on inflectional morphemes are usually omissions of the morpheme
irregular past tense errors
can be omissions, overregularizations of regular -ed, or double marking of past tense
past tense acquisition
1st, children use irregular past tense correctly, 2nd, they start to make errors by overgeneralizing, 3rd, they use irregular past tense correctly again
irregular plurals errors
no/zero marking of irregular morpheme, overgeneralization of regular morphemes, double marking
when do inflection morphemes emerge?
at about 18-24 months, when the child has at least 50 words
when are most inflectional morphemes usually mastered?
by age 3-4, although 5 years is often used as a general guideline
allomorphs
different phonological forms for the same morpheme, all have the same meaning or function but are pronounced differently
firstderivational morphemes produced:
produced by kids at about 2 years, er (someone who): teacher, player, ie (diminutive): puppy, mommy, daddy
what pronouns develop during preschool years?
personal and possessive
ex: I, it, me, you, your, she, them, we, he, they, us, you, him, her
what pronouns develop later?
reflexive pronouns
ex: myself, ourselves, etc.
negation
develops throughout preschool years, during toddler years, use one word (allgone), then use "no" prior to whole sentences (no go bed), then use "no" embedded in a sentence (I no like it), finally, use "no," "don't," and "can't" correctly (I don't like it)
nominative case
the person is the subject (subjective)
ex: ____ ate the candy.
accusative case
the person is the subject or occurs elsewhere in the sentence (objective)
ex: The man hit ____.
function words
free morphemes (words) that have grammatical function more than true independent meaning
free morphemes (words) that have an independent meaning
ex: nouns, verbs, adjectives, adverbs
bound morpheme
has meaning only in relation to another word, not a word
free morpheme
a morpheme that can stand alone, a word
morpheme acquitsition
children tend to acquire morphemes in the same order, but there is some variability
emergency of morphemes
a child using a morpheme one time
mastery of morphemes
a child using a morpheme with 90% correct use in obligatory contexts
commission/over errors on inflectional morphemes
when a child uses a morpheme in an incorrect structure, rare
production errors
child does not attempt to produce a word with the morpheme, uses another word instead
comprehension errors
child does not realize the word can be divided into two meaningful units
development of compound words
slow growth from 3 years to early school age, at first kids do not understand connection between two morphemes, at some point understand that there are twoparts but not the reason, full understanding