The new Test of Expressive Language (TEXL) is a highly reliable and valid measure of a child’s expressive spoken language ability. The test measures a child’s ability to produce the following categories of English language forms:
1. Vocabulary: Word classes such as nouns, verbs, adjectives, adverbs, and words that represent basic percepts and concepts.
2. Grammatical Morphemes: Function words (e.g., prepositions, pronouns, determiners) and inflections (e.g., bound morphemes such as noun number and case, verb number and tense, noun-verb agreement, and derivational suffixes).
3. Elaborated Phrases and Sentences: Syntactically based word relations and elaborated phrase and sentence constructions, including the modalities of single and combined constructions (interrogative sentences, negative sentences, active and passive voice, direct and indirect object), embedded sentences, and partially and completely conjoined sentences.