Final answer:
Dyslexia is not solely a reversal issue, but it is a learning disability that affects reading, writing, and spelling.
Step-by-step explanation:
The statement that dyslexia is mainly a reversal issue that involves seeing letters and/or numbers backward is false. Dyslexia is a learning disability that affects a person's ability to read, write, and spell. It is not solely a reversal issue, although letter reversals can be a hallmark of dyslexia. Dyslexic individuals may also struggle with sound-letter correspondence and have difficulty processing letters and sounds in the brain.