For the TX-KEA kindergarten dyslexia screener, why is decoding only required for Spanish?

Based on data analysis, the Spanish decoding subtest, decodificación, is also a requirement for the TX-KEA dyslexia screener to identify Spanish language students that may be at risk for reading difficulties.

Spanish is a phonetic language, it is usually pronounced the way it’s written. The letters represent a particular sound and are pronounced consistently. 

When Spanish speaking students are administered decoding, it can indicate which students may be at risk for reading difficulties due to the lack of being able to recognize and apply letter-sound knowledge and patterns. 

Dyslexia Screener webpage for more information:
TX-KEA Dyslexia Screener One-pager: