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Acquisition of Speech Sounds by Age

Speech sound development varies greatly between boys and girls as well as between ages. Below are two charts that provide information about age of acquisition of speech sounds.  Speech Pathologists have researched the age of acquisition of consonant sounds in Standard American English for many decades. Each study found slightly different results regarding the age of mastery. I have provided the norms listed from the Goldman Fristoe Test of Articulation, 2nd Edition (GFTA-2). The GFTA-2 has been a widely-used articulation assessment for over 30 years. The age of mastery was determined by 85% of the sample population having the target sound mastered in the initial, medial, and final position of words. You can view a chart below with each sound and the typical age of mastery.

These charts should be used as a reference, not as a definitive means of determining if speech services are warranted. If your child is difficult to understand or is experiencing challenges with pronunciation of sounds, please contact a licensed speech language pathologist for a full evaluation.

Male

By Age Children should be able to say
2 ½ m n h w
3 p b g
3 ½ k t
4 f
4 ½ -ing y (yellow) d
5 j (jumping)
5 ½ s “ch” (chair) “sh” (shovel)
6 r l
7 v z “th” (this)
8 “th” (thumb)

Female

By Age Children should be able to say
2 m h
2 ½ n p
3 f w b T
3 ½ k g
4 d
4 ½ -ing y (yellow) r j (jumping) “sh” (shovel)
5 l s “ch” (chair)
5 ½ z
6 “th” (this) v
8+ “th” (thumb)

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References:

 Goldman, R., Fristoe, M., & Williams, K. (2000). Goldman fristoe test of articulation supplemental developmental norms. (2 ed.). Circle Pines: American Guidance Service.

Diagnosing ADHD

Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common neurological conditions that affects between 3 to 6 percent of school-aged boy jumping on couch children.  Children with this condition exhibit significant issues with their ability to pay attention to tasks, inhibit their impulses and/or regulate their behavior.   In order for the diagnosis to be made, one has to witness significant impairment in regards to attentional regulation and/or activity level within multiple settings.  This means that the child must exhibit the concerns within the home, school, after-school program, sports team, etc.  In reality, the diagnosis can be made by a pediatrician or health care provider that is able to ascertain levels of functioning in the various domains by observing behavior or collecting parent and teacher report forms.

In the Neuropsychology Department at North Shore Pediatric Therapy, we focus on a comprehensive evaluation of a child’s functioning, including cognitive functioning, academic achievement, attentional regulation, executive functioning and social/emotional functioning.  Now, if the diagnosis can be made by a parent and teacher report, one must ask why a comprehensive evaluation should be mandated.  The answer to this is that over 45% of children that have been diagnosed with ADHD meet clinical criteria for multiple neurodevelopmental conditions.  Children with ADHD often present learning disabilities, emotional concerns and deficits with social regulation.  Sole treatment of the inattention may improve attentional regulation; however, there are other unaddressed concerns that may still linger.

Research has continuously demonstrated that the most common treatment of ADHD is a combination of pharmacological intervention, behavioral therapy, parent training, and teacher education.  Pharmacological intervention consists of stimulant medications that help to improve the child’s ability to attend to tasks.  A recent research article, which was even reported in an October edition of the Chicago Tribune, indicated that the majority of children who have been diagnosed with ADHD and are prescribed medication report significant improvement within their daily lives.  In the past, the main identification of improvement within children with ADHD was based upon teacher report.  Parents can now feel comfortable when asking their child if medication is helping. Behavior therapy focuses on the modification of the child’s environment to improve the frequency and duration of positive, on-task behaviors while extinguishing negative behaviors.  Parent and teacher education has a primary intent on discussing expectations within the home and school settings as well as possible modifications to ensure success.


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What Are Functional Assessments and the Four Main Functions of Behavior?

What are functional assessments?

Functional assessments are used to develop interventions for helping people change their behavior. A functional assessment is a procedure that is used to help identify what is reinforcing or

maintaining the behavior of concern. In order to generate a hypothesis about why an individual does something, a behavior analyst gathers information about the problem behavior (anything an individual does that is harmful or undesirable in some way). By observing the antecedents (what happened immediately before the behavior) and the consequences (what happened immediately after the behavior) of the problem behavior, behavior analysts can develop a probable cause for the behavior.

What is the function of behavior?

The function of behavior is the reason people behave in a certain way. People engage in millions of different behaviors each day, but the reasons for doing these different behaviors fall into four main categories.

The four main functions that maintain behaviors are:

  • Escape/Avoidance: The individual behaves in order to get out of doing something he/she does not want to do.
  • Attention Seeking: The individual behaves to get focused attention from parents, teachers, siblings, peers, or other people that are around them.
  • Seeking Access to Materials: The individual behaves in order to get a preferred item or participate in an enjoyable activity.
  • Sensory Stimulation: The individual behaves in a specific way because it feels good to them.

Once you have identified what function or functions are maintaining the behavior, you can start to implement an intervention that will help decrease the problem behavior and increase more appropriate behaviors.

NSPT offers services in BucktownEvanstonDeerfieldLincolnwoodGlenviewLake BluffDes PlainesHinsdale and Mequon! If you have any questions or concerns about your child, we would love to help! Give us a call at (877) 486-4140!

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