Assessment
The speech-language pathologist works as part of a collaborative,
interdisciplinary team consisting of the pediatrician, a
psychologist or psychiatrist, the teacher(s), and the family. The
speech-language pathologist will conduct a thorough parental
interview , as most children who are selectively mute will not talk
to the clinician. Use ProSearch to find a speech-language
pathologist near you.
This interview seeks information on:
the child's symptom history, especially focusing on the onset of
the behaviors. The majority of children with selective mutism do
not have a sudden onset of symptoms[CHS2]
the degree to which the child is verbally and non-verbally
inhibited, which mayvary from setting to setting. Parents may be
asked to provide information about the child's relationships with
friends or to describe how the child communicates in social
situations outside of school (e.g., interacting with other children
and adults on the playground or talking on the telephone).
associated problems (e.g., schizophrenia, pervasive developmental
disorder) that could be contributing to the failure to speak. It is
possible to rule out selective mutism if one of these are
present.
the child's speech and language development, as well as current use
and comprehension of language. Does the child understand what
people say to him or her? Does the child understand questions and
follow directions? Is the child able to find the words needed to
express ideas? The parent may be asked to describe the child's
speech production (i.e., pronunciation of words, quality/tone/pitch
of voice, fluency of speech) to help rule out any other speech and
language disabilities that could be causing or exacerbating the
mutism. Current studies show that 20-30 percent of children with
selective mutism have other speech and language disabilities;
however, these are not the cause of the mutism. It is important to
address these speech and langaugedifficulties so the child can
become more comfortable with communication.
any environmental influences (i.e., learning more than one language
at a time or not having adequate language stimulation) that may
affect the child's comfort and confidence with the language.
family history of psychiatric (e.g., social phobia,
obsessive-compulsive disorder, or other anxiety disorders) and
personality (e.g., extreme shyness) diagnoses that may be
predisposing the child to mutism. The clinician reviews the child's
medical history to rule out physical problems (e.g., neurological
delay) underlying the mutism.
The speech-language pathologist will also review educational
history via academic reports, parent/teacher comments, and
standardized testing. Do these reports indicate concern about the
child's communication skills with peers or adults in the classroom?
Are teachers concerned about the child's academic achievement? The
clinician reviews the reports of any previous testing (e.g.,
psychological) to assess whether other diagnosed disabilities could
be causing or exacerbating the mutism.
The speech-language pathologist will then conduct a speech and
language evaluation. The childs anxiety level should be taken into
account. Accommodations should be considered in order to evaluate
the child in comfortable surroundings and with familiar people. A
parent might be present to help facilitate communication. If any
evaluation procedures are too anxiety provoking they should be
discontinued.
The clinician interviews the child to observe the quality of verbal
and non-verbal communication . This is done through informal play
activities (e.g., playing together with a dollhouse and using the
dolls and accessories to stimulate dialogue and social
interaction). If the child is having difficulty participating in
these play activities, the clinician should try another type of
activitiy. Drawing may be used as a means to explore non-verbal
communication skills.
Comprehension of language is evaluated using standardized tests
(e.g., the child is shown a set of four pictures and is told to
point to one of the pictures) and informal observation.
The parent may be asked to do structured communication activities
with the child (e.g., have the child retell the plot of a story or
describe a picture) to create an informative videotape. The parent
may also be asked to provide a videotape of the child's speech at
home during regular conversation. These samples enable the
speech-language pathologist to evaluate expressive language
abilities (word knowledge, use of grammar, ability to sequence a
set of ideas, social communication skills). The speech-language
pathologist may attempt to conduct an oral-motor examination to
evaluate the strength and coordination of the muscles in the
child's lips, jaw, and tongue. Muscle weakness or incoordination
may signify a neurological impairment that is may lead to a
diagnosis other than selective mutism.
Screening test for hearing and middle ear function should also be
part of the evaluation.