Which of the following is NOT a type of speech impairment?

The selection of language disorder as the answer highlights a fundamental distinction between types of speech impairments. Speech impairments specifically refer to difficulties in the production of sounds or the mechanics of speaking. Articulation disorders, fluency disorders, and voice disorders all fall under this category.

Articulation disorders involve problems pronouncing words correctly, fluency disorders include issues such as stuttering that affect the flow of speech, and voice disorders pertain to difficulties with the pitch, volume, or quality of the voice.

In contrast, a language disorder involves difficulties in understanding or using language, which may affect both spoken and written communication but does not directly pertain to the mechanics of speech itself. By identifying language disorder as the option that does not fit within the category of speech impairments, it reinforces the understanding that the impairments relate specifically to the expression and articulation of speech, rather than the broader concept of language comprehension or expression.