Relationships Between Treatment Components, Client-Level Factors, and Positive Treatment Outcomes

How different amounts and components of treatment affect substance abuse treatment outcomes is fundamentally important to evaluating current treatment practices and recommending improvements. Through a secondary analysis of data from the National Treatment Improvement Evaluation Study (NTIES), the present study examined the relationships between treatment components, client-level factors, and positive treatment outcomes. Several components were shown tohave significant effects on the odds of a positive outcome, over and above the effects of client background characteristics. Depending on treatment modality, these included length of stay; whether or not clients reported seeing their treatment plan hours per month in group and individual counseling; utilization ofeducational, vocational, and other ancillary services; use of antianxiety and drug and alcohol medications; and client matching. Several interactions between client-level factors and treatment components were also observed. Studylimitations are discussed, followed by implications for policy and practiceand suggestions for further research.     

Effects of Message Framing on Breast-Cancer-Related Beliefs and Behaviors: The Role of Mediating Factors

The effects of gain-loss message framing on breast-cancer-related cognitions and behaviors were assessed among 539 women aged 30 to 70 years. The design involved a prebrochure telephone interview, followed by a brochure mailout, and a postbrochure telephone interview. The brochures contained information about breast cancer and the risk of family history. Recommended behaviors were framed to emphasize gains, losses, or were neutral; and statistical risk information was presented either positively or negatively. Measures included demographics, family history, breast self-examination (BSE) performance, BSE intention, self-efficacy in performing BSE, perceived early detection risk of breast cancer, perceived susceptibility to breast cancer, and anxiety about breast cancer. A loss-framed message led to greater positive change in BSE behavior. Interactions between framing effects and variables of issue involvement, perceived early detection risk, and self-efficacy indicated effects on behavior, but not beliefs.     

Jury selection in two countries: a psychological perspective

A comparative survey of jury selection practices in Britain and the United States indicates that the two countries differ along a number of dimensions, including the emphasis on the jury selection process in the trial, the amount and type of information available about prospective jurors, and the frequency with which trial lawyers alter the composition of the jury. The probable impact of these differences is analysed by considering the importance of jury composition in determining a jury’s verdict, the effectiveness of lawyers in exercising their challenges, and broader effects of jury selection procedures in the two countries.     

Increased regional cerebral glucose metabolism and semantic memory performance in Alzheimer's disease: A pilot double blind transdermal nicotine positron emission tomography study

Nicotinic receptor dysfunction and impaired semantic memory occur early in Alzheimer's disease patients (AD). Previous research implied that nicotine's ability to enhance alertness, arousal, and cognition in a number of nonclinical populations was a function of its ability to stimulate CNS nicotinic cholinergic receptors. In this study it was hypothesized that transdermal administration of nicotine would increase both regional cerebral glucose metabolism (rCMRglc) and semantic memory (as assessed by verbal fluency). Two mild AD and two elderly controls underwent positron emission tomography scanning during a double blind nicotinic agonist verbal fluency challenge procedure. rCMRglc increases occurred in both AD patients, but not controls. In the two AD patients, verbal fluency scores increased by an average of 17%. One elderly control's verbal fluency increased, and the other decreased. These findings suggest that nicotine's effect on metabolism and verbal fluency is due to its ability to stimulate the cholinergic system.     

A Psychometric Investigation of the Usefulness of the Easi-III Temperament Survey in the Australian General Population

The psychometric properties of Buss and Plomin's EASI-III Temperament Survey were examined for a random sample of 290 respondents from the Australian general population. These data support the use of the emotionality, activity and sociability scales with some minor modifications, but cast doubt on the impulsivity scale. Not only did impulsivity emerge as a multidimensional construct, but its components related to other temperaments in markedly different ways. The preliminary analyses also suggested that the EASI-III could be used to measure other constructs, the most important of which are neuroticism and extraversion. The advantages offered by the EASI-III over currently available instruments are discussed: in particular, the simplicity and clarity of the items and the well-articulated sampling framework for their selection.     

Dichoptic induction of Mccollough-type effects

If left-oblique and right-oblique black/white gratings are presented alternately to one eye, and unpatterned red and green fields are presented alternately to the other, orientation-sensitive chromatic after-effects are induced. With the colour-stimulated eye the hue usually seen on a test grating is complementary to that originally paired with its orientation, with the pattern-stimulated eye the hue is the same as that originally paired.

The experiments reported here show that: (a) the time course of decay of these chromatic after-effects (for each eye) fits approximately the same power law as that found for the normal McCollough effect; (b) analogous chromatic after-effects, opposite in the two eyes, can be dichoptically induced using pairs of stimuli other than gratings, such as dot patterns differing in magnification.

These results suggest that strongly coloured light in one eye can induce a weakly complementary bias in the colour-signalling system of the other eye, at a level peripheral to the site of the McCollough-type adaptation.     

Encoding strategy and sensory and semantic interference

Studies were designed to compare the effects of encoding strategies on two types of interference, sensory and semantic. Paired-associate lists were learned under instructional sets encouraging interactive imagery or repetitious rehearsal. Sensory interference was created by mispairing rhymes and semantic interference was produced by mispairing associatively related words. In control lists word pairs were unrelated. The results indicated that encoding strategy did not influence amounts of sensory and semantic interference. Mispairing rhymes produced the same amount of confusion as mispairing associates whether pairs were encoded through interaction imagery or through repetitious rehearsal. These effects were found with both short and long encoding intervals. The findings are inconsistent with the idea that encoding operations or strategies applied to word pairs completely determine the type of code activated for those pairs. Both sensory and semantic codes appear to be activated under each kind of encoding strategy.