Eight young children with prelingual deafness were tested with the Phonetic Level Evaluation (PLE) before receiving a cochlear implant and four times afterward. Correlations between the PLE and spontaneous speech measures were weak, suggesting that performance on the PLE has low predictive value for vowel and diphthong production during…

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)

This study examined a validation procedure combining self-reports with independent verification to identify cases of recovery from stuttering without formal treatment. A Speech Behavior Checklist was administered to 42 individuals familiar with recovered subjects' past speech. Analysis of subjects' descriptions of their past stuttering was…

This paper describes the Vocal Demodulator as a new device for analysis of vocal tremor. The Vocal Demodulator produces amplitude-demodulated and frequency-demodulated outputs and measures the frequency and level of low-frequency tremor components in sustained phonation. The paper describes quantification of the demodulation process, validation…

Sensitivity and specificity of static acoustic admittance (SAA) and tympanometric width (TW) were assessed for 116 pediatric patients. A statistically significant change in SAA was observed in immediate repeat measures. No significant change across the two sequential measures was observed for TW, peak pressure, or the estimate of ear canal volume.…

Evaluation of the validity of the MacArthur Communicative Development Inventory: Words and Sentences with 44 children with Down syndrome and 48 typically developing children established the validity of this parental measure of vocabulary development for children with Down syndrome and confirmed its validity for typically developing children.…

The Swedish version of the Communication Strategies scale of the Communication Profile for the Hearing Impaired was evaluated in terms of descriptive statistics, corrected item-total correlations, principal component analysis, and internal consistency reliability. The study concludes that the scale is an adequately reliable and clinically useful…

This study analyzed production of a long vowel sound within Finnish words by normal or dysphonic voices, using the Self-Organizing Map, the artificial neural network algorithm of T. Kohonen which produces two-dimensional representations of speech. The method was found to be both sensitive and specific in the detection of dysphonia. (Author/JDD)

A newly revised parent questionnaire for the assessment of vocabulary and syntactic development, the MacArthur Communicative Development Inventory-Toddlers, was evaluated. Concurrent validity correlations demonstrated high validity for parent report in both domains and some ability to differentially assess the two. (Author/DB)

Four experienced stuttering researchers viewed videodisks of spontaneous speech from chronic stutterers and attempted to locate the precise onset and offset of individual stuttering events. Results showed interjudge disagreements that challenge the reliability and validity of onset and offset judgments. Highly agreed stuttering events were…

This study compared differences in preschool children (n=201) clinically diagnosed with specific language impairments (SLI) who were and were not identified through standard psychometric discrepancy criteria. A combination of mean length of utterance, percent structural errors, and chronological age was found to be more useful for predicting a…

Utterances from stuttering and normally speaking children, aged two through four years, were analyzed by clinicians specializing in stuttering, general clinicians, and university students (total n=25). Results indicated that the validity of the data language used by researchers to describe stuttered and normal speech in early childhood may be…

This tutorial summarizes some of the widely known limitations of tests of statistical significance and then focuses on extracting measures of variation accounted for as a supplement to significance testing. Two measures of variation accounted for, eta squared and omega squared, are discussed. Computational formulas, computational examples, and…

Two cohorts of children (ages four and five, n=700) were screened with the Fluharty Preschool Speech and Language Screening Test. Results suggest that the Fluharty is too insensitive for screening programs aimed at identifying preschool children with language disorders, although it appears to have promise for the identification of children with…