Residency training and the later use of marital and family therapy in psychiatric practice

Marital and family therapy training during psychiatry residency was compared to later use, in practice, for 87 psychiatrists. Respondents reported modest to minimal amounts of training in residency but practiced marital and family therapy with a variety of problems, identified a spread of effect to other treatment modalities, and preferred marital and family therapy second only to individual therapy. These results suggest a trend towards incorporating marital and family therapy into psychiatry and also indicate levels of training which must be exceeded in order to achieve basic competency.     

Risk of Fetal Mortality After Exposure to Listeria monocytogenes Based on Dose-Response Data from Pregnant Guinea Pigs and Primates

One‐third of the annual cases of listeriosis in the United States occur during pregnancy and can lead to miscarriage or stillbirth, premature delivery, or infection of the newborn. Previous risk assessments completed by the Food and Drug Administration/the Food Safety Inspection Service of the U.S. Department of Agriculture/the Centers for Disease Control and Prevention (FDA/USDA/CDC)^{( 1 )} and Food and Agricultural Organization/the World Health Organization (FAO/WHO)^{( 2 )} were based on dose‐response data from mice. Recent animal studies using nonhuman primates^{( 3 , 4 )} and guinea pigs^{( 5 )} have both estimated LD₅₀s of approximately 10⁷ Listeria monocytogenes colony forming units (cfu). The FAO/WHO^{( 2 )} estimated a human LD₅₀ of 1.9 × 10⁶ cfu based on data from a pregnant woman consuming contaminated soft cheese. We reevaluated risk based on dose‐response curves from pregnant rhesus monkeys and guinea pigs. Using standard risk assessment methodology including hazard identification, exposure assessment, hazard characterization, and risk characterization, risk was calculated based on the new dose‐response information. To compare models, we looked at mortality rate per serving at predicted doses ranging from 10^?4 to 10¹² L. monocytogenes cfu. Based on a serving of 10⁶ L. monocytogenes cfu, the primate model predicts a death rate of 5.9 × 10^?1 compared to the FDA/USDA/CDC (fig. IV‐12)^{( 1 )} predicted rate of 1.3 × 10^?7. Based on the guinea pig and primate models, the mortality rate calculated by the FDA/USDA/CDC^{( 1 )} is underestimated for this susceptible population.     

The issue of consent in research that administers drugs of addiction to addicted persons

In addiction, impaired control over drug use raises questions about the capacity of addicted persons to consent to participate in research studies in which they are given their drug of addiction. We review the case for doing such research, and the arguments that addiction does, and does not, prevent addicted persons from consenting to such research. We argue for a more nuanced view that acknowledges that while in some situations addiction impairs decision-making capacity, it does not eliminate such capacity. We conclude with some suggestions for recruiting addicted subjects and designing experiments in ways to obtain free and informed consent.     

Finding common cause in quality: confronting the physician engagement challenge

Although it's difficult to achieve, physicians can be engaged and supportive of quality improvement efforts, if the activity is presented and managed effectively.     

The Interaction of Race and Gender: Changing Gender‐Role Attitudes, 1974–2006*

Objective. The purpose of this article is to assess over‐time trends in the interactive effects of gender and race on attitudes toward the changing roles of women in U.S. society. Methods. This article uses data from the 1974–2006 General Social Survey. Gender‐role attitudes are measured using two composite indices of traditionalism. Results. We find black females tend to hold less traditional gender‐role attitudes than their black male, white male, and white female counterparts. Black and white males tend to hold similar attitudes toward women entering politics, but differ significantly in their attitudes toward women working outside the home and its impact on children. Assessing over‐time trends, we find the difference between black females and the other social groups to be generally diminishing. This convergence is more pronounced for white and black females. The difference in attitudes toward women entering politics between black females and white males, on the other hand, appears to be maintaining over time. Conclusions. These findings support the idea that the labor force participation for women may have provided the groundwork for the evolution of attitudes for men and women. As white women in particular increase participation in the workforce, ideologies regarding the place of women in U.S. society have shifted.     

Exotic dancers in an awkward negotiation: Implications for affect control theory

We use affect control theory (ACT) to test the veracity of mathematically derived predictions that an exotic dancer will act in ways that are consistent with societal expectations for her “deviant” label. We also explore the strategies that exotic dancers use to maintain the definition of the situation. Our findings indicate that exotic dancers do not define their own identities as predicted. Our data also demonstrate that participants in our study were at least as likely to manage the identities of others as they were their own identities. We conclude our paper by discussing our interpretations of the data and the veracity of ACT.     

Missing regressor values under conditions of multicollinearity

The performance of some common procedures for replacing missing regressor values is investigated under varying conditions of multicollinearity" Analytical and numerical results indicate that the popular method of substituting sample means for missing values appears preferrable to other more sophisticated procedures given ill-conditioned designs In addition, results indicated that incomplete sample observations should not be thrown away under conditions of extreme multicollinearity.     

The Marshall-Olkin Fréchet Distribution

We introduce a new distribution, namely Marshall–Olkin Fréchet distribution. The probability density and hazard rate functions are derived and their shape properties are considered. Expressions for the nth moments are given. Various results with respect to quantiles, Rényi entropy and order statistics are obtained. The unknown parameters of the new distribution are estimated using the maximum likelihood estimation method adopting three different iterative procedures. The model is applied on a real data set on survival times.

[Supplementary materials are available for this article. Go to the publisher's online edition of Communications in Statistics—Theory and Methods for the following free supplemental resource: A file that will allow the random variables from MOF distribution to be generated.]     

An Application of Response Surface Methodology to the Atari® Miniature Golf Video Game

Response surface methodology is used to optimize a player's performance on the Atari® Miniature Golf computer video game. Because of the nature of the fitted response surface, a direct optimization procedure is used to estimate the optimum operating conditions.     

Biostatistics Instruction at Meharry Medical College

In a variety of settings, it is desirable to display a collection of likelihoods over a common interval. One approach is simply to superimpose the likelihood curves. However, where there are more than a handful of curves, such displays are extremely difficult to decipher. An alternative is simply to display a point estimate with a confidence interval, corresponding to each likelihood. However, these may be inadequate when the likelihood is not approximately normal, as can occur with small sample sizes or nonlinear models. A second dimension is needed to gauge the relative plausibility of different parameter values. We introduce the raindrop plot, a shaded figure over the range of parameter values having log-likelihood greater than some cutoff, with height varying proportional to the difference between the log-likelihood and the cutoff. In the case of a normal likelihood, this produces a reflected parabola so that deviations from normality can be easily detected. An analogue of the raindrop plot can also be used to display estimated random effect distributions, posterior distributions, and predictive distributions.