This stutterer did not expect to stutter on Z but actually did. The percentage of stutters correctly anticipated ranges between 62 to 92. A only resulting in 34 percent correct anticipation. The percentage of correctly anticipated stutters is between 51 and 96. Some adult stutterers and nearly all children cannot anticipate stutters.
More stutters occur on words adjacent to previously stutterered words that have been blotted out.
In this type of experiment, a stutterer is asked to read a passage and all words that were stuttered would be blotted out rendering them unreadable. When the stutterer again reads the passage, more stutters occur on words adjacent to the blotted out words. These conditions suggest that clues in the environment that consciously or unconsciously remind stutterers of their past stuttering may be a factor in the occurrence of stutters. The interview technique, in which personality is assessed by asking oral questions and the behavior sampling, in which people are observed in their natural environments, are not commonly used. Individual stutterers may be neurotic as are individual nonstutterers.