Risk and Resiliency Factors Influencing Suicidality Among Urban African American and Latino Youth

For decades, suicide rates among minority African American and Latino young people have been stable and, when compared with Whites, relatively low. This is no longer the case, underscoring the need for documenting and understanding the problem of suicidality in this population. We report on the prevalence and predictors of suicidality among 879 urban adolescents in the Reach for Health study. All youth resided in economically disadvantaged neighborhoods; 69% were African American, 16% Latino, and 15% reported mixed or other ethnicity. In the past year, 15% had seriously considered suicide; 13% had made a suicide plan, 11% had attempted suicide at least once, and 4% reported multiple attempts. Risk factors significantly related to suicidal ideation are being female, having basic needs unmet, engaging in same-gender sex, and depression. Resiliency factors include family closeness and, marginally, religiosity. Risk factors related to reports of suicide attempts are being female, being Hispanic, and depression; family closeness is strong resiliency factor. Family composition, ethnic identity, coping style, peer support, and school attachment are not significant correlates of suicidal ideation or attempts.     

对变化/分割模型的检验(Ⅱ)

在前一报告的基础上设计了两个实验,对变化／分割模型做进一步的检验,实验３控制目标时距和该时距内的填充数字系列的分割段数以及段的持续时间,操纵段内的项目数;结果显示,数字系列的分割段数明显影响延迟操作条件下的时距估计,而段内的项目数则不影响对时距的估计,实验４控制目标时距和该时距内填充数字系列的分割段数以及段内的项目数,操纵的持续时间,结果显示,对时距的估计取决于被试所傅物时间标尺,四个实验结果表明     

Mueller-Lyer illusion and size estimation performance in schizophrenics compared to normal controls

A size estimation (SE) paradigm and the Mueller-Lyer (ML) illusion were used to examine perceptual disturbances in schizophrenics. 35 reliably diagnosed (DSM III-R) schizophrenics were compared to 20 subjects with no history of psychiatric illness. Perceptual distortions found in previous studies of schizophrenics were only to a certain extent confirmed in the present results. More overestimators were found among the schizophrenics than among the normals on the SE task. The schizophrenics, first of all the chronic patients, also proved to be more prone to the Mueller-Lyer illusion. A reason why the very clear differences between schizophrenics and normals found in previous examinations were not confirmed in the present study, might be that a reliable diagnostic instrument was for the first time used in this kind of study.     

Phenotypic and genotypic heterogeneity in gaucher disease: Implications for genetic counseling

Genetic counseling for Gaucher disease is complicated by the vast degree of clinical heterogeneity encountered in the disorder. Recent advances in our understanding of the molecular genetics of Gaucher disease are particularly relevant to genetic counseling. Although the identification of mutations in the glucocerebrosidase gene has enabled genotypic screening of Gaucher patients, the ability to reliably predict patient outcome on the basis of DNA studies is often limited. An appreciation of both the spectrum of clinical manifestations in Gaucher patients and the limitations of the available genotypic information is necessary when counseling patients, families and at-risk individuals.     

Estimating the parameters of the latent population distribution

Under consideration is a test battery of binary items. The responses ofn individuals are assumed to follow a Rasch model. It is further assumed that the latent individual parameters are distributed within a given population in accordance with a normal distribution. Methods are then considered for estimating the mean and variance of this latent population distribution. Also considered are methods for checking whether a normal population distribution fits the data. The developed methods are applied to data from an achievement test and from an attitude test.     

The relationship between feeding rate and patch choice.

Rats in a laboratory foraging simulation searched for sequential opportunities to feed in two patches that differed in the rate at which food pellets were delivered (controlled by fixed-interval schedules) and in the size of the pellets. The profitability of feeding in each patch was calculated in terms of time (grams per minute) and in terms of effort (grams per bar press). These values were the result of the imposed fixed interval, the size of the pellets, and the rate at which the rats pressed the bar in each condition. The rats ate more food and larger meals, but not more frequent meals, at the patch offering the higher rate of food consumption, calculated as grams per minute. The relative intake at any patch was a function of the relative rate of intake during meals at that patch compared to the other patch. Rats respond to explicit manipulations of feeding time in the same manner as they respond to manipulations of feeding effort.     

Toward Cognitive-Behavioral Therapy for Sexual Minority Women: Voices From Stakeholders and Community Members

Sexual minority women (SMW) experience an elevated risk of mental health problems compared to heterosexual women. However, knowledge gaps remain regarding whether cognitive-behavioral therapy (CBT) interventions meet SMW’s mental health needs. Further, virtually no studies have integrated stakeholder (i.e., researchers with content expertise in SMW’s health and clinical providers who work with SMW) and community member (i.e., SMW) perspectives to identify CBT approaches that address SMW-specific issues. This study used qualitative data gathered from 39 SMW who reported depression, anxiety, suicidality, and heavy drinking in the past 3 months and 16 content experts and clinical providers to obtain information relevant to enhancing CBT for SMW. In addition, we used thematic analysis to identify themes related to the adaptation and delivery of CBT for SMW. Building on prior literature, this study’s findings revealed seven considerations for delivering mental health services to SMW: (1) attending to SMW’s diverse gender identities and expressions; (2) focusing on SMW’s nonbinary stressors; (3) formulating SMW’s gender-based stressors within a feminist framework; (4) applying intersectionality frameworks; (5) incorporating issues of diversity, multiculturalism, and social justice; (6) addressing the role of trauma exposure; and (7) addressing the role of alcohol use in SMW’s lives. These considerations are reviewed in terms of their implications for clinical practice, with a focus on enhancing applications of existing CBT interventions to best respond to the unique needs of this population.     

Effect sizes in ANCOVA and difference-in-differences designs

It is common practice in both randomized and quasi-experiments to adjust for baseline characteristics when estimating the average effect of an intervention. The inclusion of a pre-test, for example, can reduce both the standard error of this estimate and—in non-randomized designs—its bias. At the same time, it is also standard to report the effect of an intervention in standardized effect size units, thereby making it comparable to other interventions and studies. Curiously, the estimation of this effect size, including covariate adjustment, has received little attention. In this article, we provide a framework for defining effect sizes in designs with a pre-test (e.g., difference-in-differences and analysis of covariance) and propose estimators of those effect sizes. The estimators and approximations to their sampling distributions are evaluated using a simulation study and then demonstrated using an example from published data.     

Intuitions about sample size: the empirical law of large numbers

According to Jacob Bernoulli, even the ‘stupidest man’ knows that the larger one's sample of observations, the more confidence one can have in being close to the truth about the phenomenon observed. Two-and-a-half centuries later, psychologists empirically tested people's intuitions about sample size. One group of such studies found participants attentive to sample size; another found participants ignoring it. We suggest an explanation for a substantial part of these inconsistent findings. We propose the hypothesis that human intuition conforms to the ‘empirical law of large numbers’ and distinguish between two kinds of tasks–one that can be solved by this intuition (frequency distributions) and one for which it is not sufficient (sampling distributions). A review of the literature reveals that this distinction can explain a substantial part of the apparently inconsistent results. © 1997 John Wiley & Sons, Ltd.