Microcomputer Applications: “Statistics: For the Rest of Us”

Training accurately predicted sales forces' performance nearly 50% of the time in a national research study of paper and plastics merchant wholesalers' sales force effectiveness. The top performing sales forces front-load the length of training for new salespeople and broaden its methods, sources, and contents. Managerial recommendations are to: (a) reallocate training budgets that balance new and experienced salespersons' training, (b) re-focus on training content to balance strategy-oriented training with knowledge and interpersonal communication skill areas of training content, (c) diversify training sources and methods for new salespersons' training, and (d) involve suppliers and customers in merchant sales force training.     

Work Stressors,Depressive Symptoms,and Hazardous Drinking Among Navy Members Across Deployment

Few studies have attempted to examine how changes in work stressors from predeployment to postdeployment and reintegration may be associated with changes in mental health symptoms and hazardous drinking. The present study examined associations between work stressors, depressive symptoms, and hazardous drinking, and whether depressive symptoms mediated the association between work stressors and hazardous alcohol use or vice versa across deployment (predeployment, postdeployment, and 6-month reintegration). Participants were 101 U.S. Navy members (72 men; mean age = 28.34 years; SD = 5.99 years) assigned to an Arleigh Burke-class destroyer that experienced an 8-month deployment after recent wars in the Middle East. They completed measures that assessed work stressors, depressive symptoms, and alcohol use at each time point (i.e., predeployment, postdeployment, and 6-month reintegration). Using a parallel process latent growth modeling approach, we found a significant indirect effect at postdeployment such that an increase in work stressors contributed to increases in hazardous drinking via increases in depressive symptoms. Specifically, increases in work stressors significantly predicted increases in depressive symptoms, which in turn significantly predicted increases in hazardous drinking from pre- to postdeployment. Our findings garner support for affect regulation models and indicate that work stressors and changes in work stressors and depressive symptoms may be key to hazardous alcohol use among U.S. Navy members experiencing high pace of deployment. Taken together, our results help identify targets for alcohol prevention efforts among current military members.     

Spectroscopic studies of a thermochromic centre in synthetic diamonds grown by the temperature-gradient method

Abstract

Synthetic diamonds grown by the temperature-gradient method at temperatures just above the melting point of the solvent-catalyst often have an unattractive dull-green colour. This green colour, which is prominent at room-temperature, disappears if the diamond is cooled to below 120 K and is restored on warming the crystal back to room temperature. We show that the behaviour of the absorption band responsible for the colour is consistent with the transition occurring from the upper level of a centre with a split ground state, for which transitions from the lower level are forbidden. Temperature-dependence measurements indicate that the energy splitting in the ground state is about 50 meV. The broad featureless absorption band, with a maximum near 1·9eV, is assumed to be vibronic in origin. The absence of structure in the band indicates that the electronic transition is strongly coupled to the lattice and, as expected, the zero-phonon line, estimated to be at around 1eV, is too weak to detect. The same absorption band is also shown to be present in some individual crystals of synthetic diamond abrasive grit.     

Twin-coupled domain structures in epitaxial relaxor ferroelectric Ba(Zr,Ti)O3 thin films on (001) MgO substrate

We report the twin-coupled multi-oriented domain structures in the epitaxial BZT20 (20%Zr) films grown on the (001) MgO substrate using pulsed-laser deposition. Transmission electron microscopy shows that the film consists of an epitaxial layer of pseudo-cubic perovskite structure and a nanopillar layer of multi-oriented twin domain structures near the surface. Four types of the twin domains were formed in the nanopillar layers by coherently joining their {111} with the epilayer and aligning their ?110? directions parallel to the ?110? axes of the epilayer. A non-uniform polarization switching behavior was observed due to the formation of such complex structure in the BZT20 films.     

Towards a model of self-awareness development for counselling and psychotherapy training

Self-awareness has been considered to be a critical ingredient for effective counselling and psychotherapy. However, training models have failed to provide an integrated and explicit approach to self-awareness development. The authors therefore introduce and describe the integrated model of self-awareness development and discuss potential applications for counselling and psychotherapy training.     

Social relevance enhances memory for impressions in older adults

Previous research has demonstrated that older adults have difficulty retrieving contextual material over items alone. Recent research suggests this deficit can be reduced by adding emotional context, allowing for the possibility that memory for social impressions may show less age-related decline than memory for other types of contextual information. Two studies investigated how orienting to social or self-relevant aspects of information contributed to the learning and retrieval of impressions in young and older adults. Participants encoded impressions of others in conditions varying in the use of self-reference (Experiment 1) and interpersonal meaningfulness (Experiment 2), and completed memory tasks requiring the retrieval of specific traits. For both experiments, age groups remembered similar numbers of impressions. In Experiment 1 using more self-relevant encoding contexts increased memory for impressions over orienting to stimuli in a non-social way, regardless of age. In Experiment 2 older adults had enhanced memory for impressions presented in an interpersonally meaningful relative to a personally irrelevant way, whereas young adults were unaffected by this manipulation. The results provide evidence that increasing social relevance ameliorates age differences in memory for impressions, and enhances older adults’ ability to successfully retrieve contextual information.     

Culture Change in Elite Sport Performance Teams: Examining and Advancing Effectiveness in the New Era

Reflecting the importance of optimizing culture for elite teams, Fletcher and Arnold (2011) recently suggested the need for expertise in culture change. Acknowledging the dearth of literature on the specific process, however, the potential effectiveness of practitioners in this area is unknown. The present paper examines the activity's precise demands and the validity of understanding in sport psychology and organizational research to support its delivery. Recognizing that sport psychologists are being increasingly utilized by elite team management, initial evidence-based guidelines are presented. Finally, to stimulate the development of ecologically valid, practically meaningful knowledge, the paper identifies a number of future research directions.     

Teaching Paragraph Composition to Students with Emotional/Behavioral Disorders Using the Simultaneous Prompting Procedure

The purpose of this study was to examine the effectiveness of the simultaneous prompting procedure in teaching paragraph composition to 4, 5th grade students identified with emotional behavioral disorder (EBD) and attention-deficit hyperactivity disorder (ADHD). The instructor taught students how to construct and proofread a 5-sentence paragraph using the simultaneous prompting procedure with embedded non-targeted information related to the writing process. A multiple probe design across participants assessed effectiveness of the procedure. Results indicated that all students learned to compose a paragraph, acquired the non-targeted information, maintained the skills up to 6 weeks later, and generalized the skills to other writing tasks.     

The Developing Theory of Mental State Control: Changes in Beliefs about the Controllability of Emotional Experience from Elementary School through Adulthood

ABSTRACT

In everyday life, we use folk theories about the mind and behavior to understand ourselves and others. An important part of our folk theory of mind is our intuitions about the role of the self in mental functioning—namely, whether the self is able to control each mental operation. The current study explored beliefs about the nature of control over emotional aspects of mental experience from middle childhood through adulthood. Elementary school children (n = 46), middle schoolers (n = 46), 18-year-olds (n = 46), and adults (n = 104) were presented with vignettes depicting characters experiencing negative emotions. Participants evaluated the intentionality, changeability, and chronicity of the characters’ responses. Results showed that by elementary school, children share adults’ view that emotions are largely outside of volitional control. However, beliefs about the changeability and chronicity of emotions mature beyond middle childhood. Between elementary school and adulthood, participants decreased their endorsement of the ability to change one’s current negative emotions and increased their beliefs in the chronic, enduring nature of these responses. With age, these changeability and chronicity beliefs also came to differ depending on the emotional response (i.e., feeling grumpy, being nervous, acting mean). Together, these findings suggest that intuitions about the controllability of emotional experience become more differentiated and less optimistic across development.