Understanding Fluency Disorders

Fluency disorders are a type of speech disorder that affects the flow, smoothness, speed, and effort of speaking. These disorders can cause interruptions, repetitions, or prolongations of sounds, syllables, words, or phrases.

Let's look at the options provided in the question:

• Voice: Voice disorders affect the quality, pitch, or loudness of the voice. Issues like hoarseness or strain are related to voice, not fluency.
• Pitch: Pitch refers to how high or low a sound is. Problems with pitch control are also part of voice disorders, not fluency disorders.
• Stuttering: Stuttering is the most common type of fluency disorder. It is characterized by repetitions of sounds, syllables, or words; prolongations of sounds; and blocks, where a person has difficulty getting a sound out.
• Voice, Pitch and Stuttering: As voice and pitch are related to voice disorders, this option which includes all three is incorrect.

Based on the understanding of speech disorders, stuttering is clearly classified as a fluency disorder.

Therefore, fluency disorders include stuttering.