Which component is associated with understanding word structure and morphemes in the Four-Part Model?

• A. Phonological Processing
• B. Orthographic Processing
• C. Semantic Processing
• D. Morphological Processing

Answer: (D)

Morphological processing is the part that focuses on how word parts come together. It examines morphemes—the smallest units of meaning such as roots, prefixes, and suffixes—and how combining them changes a word’s meaning or its part of speech. This awareness helps students decode unfamiliar words and grow their vocabulary by recognizing patterns across words, like how prefixes such as un- or re- or suffixes like -ed, -ing, or -ful alter meaning. For example, spotting the root teach and the suffix -er to get teacher, or recognizing un- with the word kind to see unkind. This focus on word structure and meaning-in-formation is distinct from decoding sounds (phonological processing), spelling patterns (orthographic processing), or word meaning (semantic processing), making it the best fit for understanding morphemes and how words are built.