Estimates of test size for several test procedures based on conventional variance ratios in the repeated measures design

Estimates of test size (probability of Type I error) were obtained for several specific repeated measures designs. Estimates were presented for configurations where the underlying covariance matrices exhibited varying degrees of heterogeneity. Conventional variance ratios were employed as basic statistics in order to produce estimates of size for a conventional test, an -adjusted test, and -adjusted test and a conservative test. Indices for empirical distributions of two estimators of , a measure of covariance heterogeneity, were also provided.     

Mending the Broken Circle: Treatment of Substance Dependence Among Native Americans

Issues surrounding substance dependence of Native Americans are examined through the cultural concept of the Broken Circle. Traditional cultural views of wellness and healing are described using the traditions of Indian Medicine, the value of the Circle, and what it means to live in harmony and balance. Underlying factors in substance dependence of Native Americans are presented along with practical counseling recommendations and implications for treatment through both contemporary and traditional Native healing methods.     

Working memory representations persist in the face of unexpected task alterations

It is well known that information can be held in memory while performing other tasks concurrently, such as remembering a color or number during a separate visual search task. However, it is not clear what happens to stored information in the face of unexpected tasks, such as the surprise questions that are often used in experiments related to inattentional and change blindness. Does the unpredicted shift in task context cause memory representations to be cleared in anticipation of new information? To answer this question, we ran two experiments where the task unexpectedly switched partway through the experiment with a surprise question. Half of the participants were asked to report the same attribute (Exp. 1?=?Identity, Exp. 2?=?Color) of a target stimulus in both presurprise and postsurprise trials, while for the other half, the reported attribute switched from identity to color (Exp. 1) or vice versa (Exp. 2). Importantly, all participants had to read an unexpected set of instructions and respond differently on the surprise trial. Accuracy on the surprise trial was higher for the same-attribute groups than the different-attribute groups. Furthermore, there was no difference in reaction time on the surprise trial between the two groups. These results suggest that information participants expected to report can survive an encounter with an unexpected task. The implication is that failures to report information on a surprise trial in many experiments reflect genuine differences in memory encoding, rather than forgetting or overwriting induced by the surprise question.     

A Difference of Some Consequence Between Conventions and Rules

Lewis’s view of the way conventions are passed on may have some especially interesting consequences for the study of language. I’ll start by briefly discussing agreements and disagreements that I have with Lewis’s general views on conventions and then turn to how linguistic conventions spread. I’ll compare views of main stream generative linguistics, in particular, Chomsky’s views on how syntactic forms are passed on, with the sort of view of language acquisition and language change advocated by usage-based or construction grammars, which seem to fit better with Lewis’s ideas. Then I will illustrate the interest of Lewis’s perspective on the dissemination of conventions with a variety of linguistic examples.     

should i stay at home or should i go back to work? workforce reentry influences on a mother's decision‐making process

The authors examine the literature pertaining to women's life transitions and the difficult decision‐making process some women encounter when reentering the workforce after a period of staying at home with young children. On the basis of the unique challenges faced by this population, the authors created a conceptual framework (i.e., the Mother's Reentry Into the Workforce Conceptual Framework) to demonstrate this difficult decision‐making process. The framework examines driving forces, filters, and outcomes specific to this population. Implications for employment counselors are shared. Group employment counseling is suggested as an ideal format to provide support to women during this transitional period.     

Brief motivational intervention with homeless adolescents: evaluating effects on substance use and service utilization.

A brief motivational intervention with 117 homeless adolescents was evaluated using a randomized design and 3-month follow-up. The intervention was designed to raise youths' concerns about their substance use, support harm reduction, and encourage greater service utilization at a collaborating agency. The study was designed to strengthen initial promising results of an earlier study (P. L. Peterson, J. S. Baer, E. A. Wells, J. A. Ginzler, & S. B. Garrett, 2006). Several modifications in the clinical protocol were included to enhance engagement with the intervention. Analyses revealed no significant benefits for intervention participants when homeless youths' substance use rates were compared with those of control participants. Service utilization during the intervention period increased for those receiving the intervention but returned to baseline levels at follow-up. Participants reported overall reductions in substance use over time. Differences between sampling methods for the current and previous study are discussed, as are the limitations of brief interventions with this population. Future research needs to elucidate mechanisms of change and service engagement for highly vulnerable youth.