This paper argues against definitions of stuttering which imply that all within-word disfluencies are stuttering and no between-word disfluencies are stuttering. The paper calls for a definition of stuttering that is not contradicted by available empirical information or clinical experience and is logically consistent. (JDD)

A theory of neurolinguistic function is proposed to explain fluency and the production of stuttered speech disruptions. Stuttering results when the speaker is under time pressure and is unaware of the cause of dyssynchrony between the linguistic and paralinguistic components of speech which are processed by different neural systems but converge on…

The authors of a research report (1999) on the diagnosis of stuttering in young children respond to a critical letter by questioning the accuracy, validity, credibility, and internal consistency of the letter writer's criticisms. The reply goes on to clarify the evaluation of stuttering-like disfluencies and single-syllable word repetitions in…

This letter critiques a research report (Ambrose and Yairi, 1999) on diagnosis of stuttering in young children, especially the methodological issues concerned with subject selection criteria that excluded borderline cases and the use of a weighting procedure to eliminate group overlap. Also noted is the failure to distinguish between stuttering…

This response to a letter (EC 627 691) critical of the authors' research report (1999) on the diagnosis of stuttering in young children defends their subject selection criteria, justifies their use of a weighted measure of stuttering-like disfluencies, and notes continuing disagreement concerning the difference between stuttering and disfluency.…

This commentary on EC 232 373 and EC 232 374 suggests that a theory that depends on categorizing events as either stuttering or nonstuttering must fail. It evaluates the merit of the voluntary/involuntary distinction in loss of speech production control, defends research on the nature of stuttering, and proposes additional research and theory.…

This article critiques the previous research of Miller and Watson (1992) which concluded there were no significant differences between stutterers and nonstutterers on measures of anxiety or depression. It notes confounding effects of previous treatment, self-diagnosis, and low number of subjects. It then offers guidelines for conducting more valid…

This response to Ashley Craig's critique (EC 608 043) of the authors' research (which found no significant differences on measures of anxiety and depression between stutterers and nonstutterers) refutes Craig's claim that results were confounded by subjects' previous treatment, self-diagnosis, and low number. (DB)

The paper argues that listeners are unable to judge unit-by-unit occurrences of stuttering acceptably. Reasons for this state of affairs and its implications for therapy, theory, and research are analyzed. An alternative speech production definition with its implications is proposed, and a diagnostic method of validating authentic stuttering is…

The commentary to EC 232 373 and EC 232 374 discusses whether stuttering is really what the listener perceives, the stutterer senses, or the dictionary states. It concludes that stuttering can probably be defined in appropriate contexts as any or all of these three things. (JDD)

This commentary to EC 232 373 and EC 232 374 challenges the use of a speaker-based definition of stuttering and argues that use of the definition may only relocate the judgment reliability problem and raise as many validity problems as a listener-based definition of stuttering does. (JDD)

This paper reviews evidence that characteristics of the perceptually fluent speech of stutterers change as a function of a number of variables and that, because these variables are difficult to fully control, comparison of the characteristics of the perceptually fluent speech of stutterers and nonstutterers as a method of studying stuttering…

A response is presented to commentaries (EC 232 375-377) on two papers (EC 232 373 and EC 232 374), focusing on research methodology on stuttering, the impact of improving intrajudge and interjudge agreement, the importance of studying stuttering as a private experience rather than an acoustical event, and speakers' experience of loss of control…