The influence of the victim on shock induced aggression in rats.

In two studies, free-roaming male rats (aggressors) were shocked in the presence of male target rats restrained in either an upright or a supine posure. In addition, in Experiment II, two levels of aggressor shock intensity (0.8 mA or 2.0 mA) were used while targets received one of three levels of shock (0.5 mA, 1.5 mA, or 2.5 mA). In both studies, upright targets were attacked less than supine targets. Frequency of aggression was directly related to level of aggressor shock intensity in Experiment II. Also, attack by 0.8-mA aggressors against supine targets was inversely related to level of target shock intensity. The low level of attack against upright targets was interpreted in terms of a threat diaplay. Similarily, it was concluded that the target shock-intensity effect in Experiment II was due to specific threat behaviors displayed by those supine rats that received the highest-intensity shocks.     

Issues in Professional Training to Implement Evidence‐based Parenting Programs: The Preferences of Indigenous Practitioners

Indigenous children have elevated risk for poor health, behavioural, emotional, and social outcomes. Significant evidence exists that parenting programs can reduce family risk factors and improve outcomes for children and families; however, mainstream programs have had slower uptake in Indigenous communities than other communities. Culturally sensitive delivery of evidence‐based programs can enhance engagement of parents, yet the development of a workforce to deliver programs to Indigenous parents faces many obstacles. This project seeks to identify professional training processes that enhance Indigenous practitioners’ skills and confidence in delivering an evidence‐based parenting program. A survey of trained parenting practitioners via an online practitioner network assessed their views of the training and post‐training support processes they had experienced. Respondents were 57 Indigenous and 720 non‐Indigenous practitioners from 15 countries. Most training processes were rated equally helpful by Indigenous and non‐Indigenous practitioners. However, several training processes were identified as important for the delivery of culturally competent training, such as tailoring the pace of training and simplifying the language in teaching resources. Practitioners with higher ratings of the helpfulness of peer support following training reported higher program uptake and implementation. Qualitative themes also focused on the helpfulness of program resources, and having a peer support network and mentoring. Increasing access to appropriate, flexibly delivered training and post‐training support for Indigenous professionals will support the development of a skilled workforce with local knowledge and connections, and further increase the reach of evidence‐based services in Indigenous communities.     

The effect of fast speech rate on stuttering frequency during delayed auditory feedback

Delayed auditory feedback (DAF) has been documented to improve fluency in those who stutter. The increased fluency has been attributed to the slowed speech rate induced by DAF, but recent experiments have suggested that increasing the speech rate may also decrease stuttering under DAF. This investigation described the effect of combining a fast speech rate and DAF on the fluency of four people who stutter. Fluency of the two mildly dysfluent subjects was the same for both no DAF and DAF conditions at normal and at fast oral reading rates. In contrast, the two severely dysfluent subjects improved in fluency from the no DAF to the DAF conditions. They were found to be dysfluent at both normal and fast oral reading rates without DAF. The results of the study point to the need for further research on the relationship between speech rate and stuttering frequency under conditions of DAF and no DAF. EDUCATIONAL OBJECTIVES: Readers will learn about and be able to describe how the frequency of stuttering is affected by: (1) speech rates; (2) DAF; and (3) how stuttering severity influences such effects.     

Are complex psychotherapies more effective than biofeedback, progressive muscle relaxation, or both? A meta-analysis

A meta-analysis of 26 studies was conducted to assess whether more complex forms of psychotherapy would be superior to control treatments of either biofeedback, progressive muscle relaxation, or both. Consistent with hypotheses, more complex treatments provided a small, significant improvement over biofeedback and progressive muscle relaxation (r = .09). A subset of the more complex behavioral treatments accounted for most of this small incremental effectiveness of more complex treatments (r = .15). Possible sources of this incremental effectiveness are discussed.     

Dyadic short forms of the Wechsler Adult Intelligence Scale-III

Various short forms of the Wechsler Adult Intelligence Scale (WAIS)/WAIS-R have been developed to obtain estimates of overall intellectual level, although little research of WAIS-III short forms has been published to date. Full Scale IQ (FSIQ) estimatesfromfour WAIS-III dyadic short forms were obtained by entering selected subtest scores from a mixed neurologic/ psychiatric sample (n = 196) into regression equations. Results were cross validated on a second sample (n = 57). Within both samples, WAIS-III FSIQ scores were highly correlated (r = .90-.92, p < .001) with estimated FSIQ scores. Estimated FSIQ fell within 5 points of actual FSIQ in 49% to 74% of cross-validation cases and within 10 points of actual FSIQ in 81% to 93% of the sample. Comparable to findings from previous short-form investigations, actual and estimated FSIQ classification levels agreed in 46% to 67% of cases in the cross-validation sample. These dyadic WAIS-III forms appear appropriate for obtaining gross estimates of FSIQ in similar populations, although caution is recommended in interpreting estimated IQ scores.     

Two operations for "ratios" and "differences" of distances on the mental map

Ss judged "ratios of distances" and "differences of distances" between pairs of U.S. cities. Results fit the theory that Ss used two comparison processes as instructed. A ratio scale of distances between cities was constructed from the 2 rank orders. From this scale, an interval scale of the city locations on an east-west continuum was derived. This scale agrees with the subtractive model fit to "ratios" and "differences" of easterliness and westerliness, and it also agrees with multidimensional scaling of judged distances between cities. These findings are consistent with the theory that Ss use subtraction when instructed to judge either "ratios" or "differences," but that they can use both ratio and difference operations when the stimuli (in this case, distances) constitute a ratio scale on the subjective continuum.     

Caveats on a process-tracing measure and a remedy

In process-tracing studies, a frequently used index describes whether information selection behavior is attribute — or alternativewise. The performance of this index is investigated under the assumption that subjects select information in a random fashion. The results show that the index may lead to inaccurate conclusions regarding the information-acquisition strategy of a subject. In addition, a Monte Carlo study is conducted that examines the sensitivity of the index to strategy changes. An alternative index is derived and a latent-class model is proposed for a parsimonious representation of individual differences in information acquisition.     

Feasibility of telecognitive assessment in dementia

Videoconferencing (VC) technology has been used successfully to provide psychiatric services to patients in rural and otherwise underserved settings. VC-based diagnostic interviewing has shown good agreement with conventional face-to-face diagnosis of dementia in several investigations, but extension of this technology to neurocognitive assessment has received little attention. To this end, the authors administered a brief battery of common neuropsychological tests via VC technology (telecognitive) and traditional face-to-face methods to 14 older persons with mild cognitive impairment (MCI) and 19 persons with mild to moderate Alzheimer's disease (AD). Highly similar test scores were obtained when participants were tested in-person or via VC. Telecognitive assessment appears to be a valid means to conduct neuropsychological evaluation of older adults with cognitive impairment. Furthermore, continued development of VC technology has implications for expanding neuropsychological assessment options in under-served populations.