The primary characteristic of children with 'dyslexia' includes

Correct Answer: inability to read fluently.

Explanation:

Dyslexia is a specific learning disability that is neurobiological in origin. It is mainly characterized by difficulties with accurate and/or fluent word recognition, as well as poor spelling and decoding abilities.

Let us analyze the given options:

1. Attention deficit disorders: While a child can have both ADHD and dyslexia, attention deficit is a separate neurological condition and not the defining characteristic of dyslexia.

2. Divergent thinking; fluency in reading: Children with dyslexia typically struggle with reading fluency, making fluency in reading incorrect.

3. Inability to read fluently: Dyslexia primarily affects phonological processing, which directly impacts a person's ability to read smoothly, accurately, and fluently.

4. Engaging in repetitive locomotor actions: Repetitive motor movements are more commonly associated with conditions like Autism Spectrum Disorder (ASD), not dyslexia.

Therefore, the primary characteristic of children with dyslexia is their inability to read fluently.