Subjective Screening of Stuttering severity, locus of control and avoidance: research edition

This article describes the Subjective Screening of Stuttering (SSS): research edition that is designed to quantify the selected self-reports of people who stutter (PWS) prior to, during, and following their treatment. The three areas screened by the SSS are perceived stuttering severity, the level of internal or external locus of control, and reported word or situation avoidance. Each of the areas has two or three items rated for three audiences on a one to nine rating scale. Other available measures were reviewed and the need for a single instrument that provides quantified screening of each of the areas was recognized. Results of a research project using the SSS with 16 PWS indicated that percent of syllables stuttered correlated with stuttering severity (r=0.75) and with locus of control (r=0.43) but did not correlate with avoidance. These results were interpreted to indicate a need for other types of therapy following the experimental treatment studied. Reliability and validity of the SSS were judged adequate for research and clinical screening. The possible role of screening self-reports of PWS in combination with more extensive self-report instruments and with objective measures of stuttering is discussed. EDUCATIONAL OBJECTIVES: The reader will be able to (1) assess the perception of stuttering severity, avoidance and locus of control of people who stutter (PWS), and (2) determine from the PWS the self-reported outcome of treatment.     

Defending David Lewis’s modal reduction

David Lewis claims that his theory of modality successfully reduces modal items to nonmodal items. This essay will clarify this claim and argue that it is true. This is largely an exercise within ‘Ludovician Polycosmology’: I hope to show that a certain intuitive resistance to the reduction and a set of related objections misunderstand the nature of the Ludovician project. But these results are of broad interest since they show that would-be reductionists have more formidable argumentative resources than is often thought. Lewis’s reduction depends on a set of methodological commitments each of which is fairly plausible or at least currently popular, and none of which is particular to modality. The choice of which of these commitments to reject I leave to the discerning antireductionist. The essay proceeds as follows: §1 discusses reduction generally and one or two relevant puzzles; §2 discusses Lewis’s reduction in particular; the longest section, §3 replies to four objections.     

Discrete changes in the frequency and functions of autobiographical reminiscence in Huntington's disease

ABSTRACT

Autobiographical memory is widely posited to serve self, social and directive functions. Recent evidence suggests marked autobiographical memory impairments in Huntington's disease (HD), however, no study to date has determined how the perceived functions of autobiographical reminiscence may be altered in HD. The current study aimed to assess the self-reported frequency and function of autobiographical reminiscence in HD. We assessed autobiographical reminiscence in late premanifest (n?=?16) and early stage HD (n?=?14), relative to healthy controls (n?=?30). Participants completed the Thinking About Life Experiences Scale Revised (TALE-R), which measures three putative functions of autobiographical memory (self, social, directive). People with manifest HD reported talking less frequently about the past compared to controls. In contrast, no group differences were found in terms of thinking about the past. Manifest HD participants further reported using their autobiographical memories for social functions less frequently compared to controls. No other group differences were evident in terms of self or directive functions of autobiographical memory. These self-report findings complement recent reports of autobiographical memory disruption on performance-based tasks in HD. Future studies exploring how changes in autobiographical reminiscence impact a sense of self continuity in HD will be important in this regard.     

A test of the inventory of attitudes towards seeking mental health services

This study investigates the construct validity, composite reliability and concurrent validity of the Inventory of attitudes towards seeking mental health services (IASMHS). A large sample of Irish police officers (N = 331) participated in the study. Confirmatory factor analysis supported the three-factor structure of the scale, while composite reliability results demonstrated that the IASMHS possessed excellent internal reliability. Structural equation modelling indicated that help-seeking propensity was the strongest predictor of intentions to engage in psychological counselling followed by psychological openness. Neuroticism was a weak, significant predictor of intentions. Implications of these results are discussed in relation to improving utilisation rates of mental health services.     

A parametric analysis of errors of commission during discrete-trial training

We investigated the effects of systematic changes in levels of treatment integrity by altering errors of commission during error-correction procedures as part of discrete-trial training. We taught 3 students with autism receptive nonsense shapes under 3 treatment integrity conditions (0%, 50%, or 100% errors of commission). Participants exhibited higher levels of performance during perfect implementation (0% errors). For 2 of the 3 participants, performance was low and showed no differentiation in the remaining conditions. Findings suggest that 50% commission errors may be as detrimental as 100% commission errors on teaching outcomes.