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Developmental Research #1
Early Hearing Loss and Language Abilities in Children with Down Syndrome
Down syndrome (DS) or trisomy 21 is the most common chromosomal disorder there is. The
majority of DS cases result from failure of chromosome separation during meiosis; this causes
one to have three of the same chromosomes instead of two (the normal amount). Children born
with this disorder are likely to have difficultly with memory, speech, vocabulary, and normal
motor and intellectual development (Berk & Meyers, 2016). Down syndrome can also be
associated with hearing problems. Hearing loss that occurs early in a child’s life can greatly
affect language acquisition. Individuals with DS often have a more difficult time with
expressive language; it is more difficult for them to produce language than the average child
(Laws & Hall, 2014). This particular sequential study used audiology clinic data to find the
correlation between hearing loss and speech and language abilities in children ages 2 to 4 years.
There were questionnaires that the parents of the children were asked to complete concerning
their child’s hearing abilities. Using the data from the parents and the audiology clinic the
researchers were able to separate the 42 children into groups according to their ability to hear.
The children with hearing loss were then compared to those without. The children were then
tested on their nonverbal abilities, their IQ, their hearing threshold, their vocabulary, language
abilities, and their speech (Laws & Hall, 2014). The results of this study show that early hearing
loss does indeed have a major impact on the development of speech and language.
Instructional Decision #1
This study helped show me how big of an impact hearing loss can have on the development of
speech and language. Although this is a major problem for children diagnosed with DS, it can be
applied to any child. Children with hearing impairments, especially early on will likely be