Two tests for monotone failure rate with incomplete data

Two statistics are proposed for testing for the exponential distribution against monotone failure rate alternatives when ran-domly right censored data are available. One of them is a general-ization of the Billmann, Antle and Bain test based on the MLE of the shape parameter of the Weibull distribution. The second has the advantage of being given in closed form. For this test the asymptotic null distribution is given. Consistency of the two tests is proved starting from an expected value inequality characterizing monotone failure rate.     

Lower bounds on bayes factors for a linear regression model

This paper develops a Bayesian analysis of testing linear parameter restictions in a normal regression model. Instead of searching for a suitable "objective" prior for such a test, several interesting classes of informative priors are postulated, and the lower bounds on the Bayes factors are derived.     

英语专业学生批判性思维能力培养的实证研究——以英语作文反馈式评价为媒介

依托Moodle平台,采用对英语专业学生英语作文进行反馈的方式训练学生的批评性思维技能。实验过程中利用"批判性思维质性评价量表"对实验班进行一对一的反馈式评价,实验结论显示,经过系统的训练和有针对性的反馈,实验班的批判性思维技能得到提高,证实了网络平台在思辨能力培养中的作用。     

Using the Textbook as a Curriculum Resource Center

As a graduate student in a teacher-training program, I saw firsthand the gulf between the methods suggested by my professors and classroom practices that are didactic and lack depth. My concern over these issues has led me to examine research related to them, and the findings suggest that the perception that social studies is in trouble is very real and that there are many teachers who do not attempt to teach social studies in a relevant, thought-provoking way. Researchers are not in agreement on the reasons for the decline in both the quantity and quality of social studies lessons. Many blame the restrictions placed on teachers by high-stakes testing, while others blame teachers themselves, and others blame teacher-training programs for inadequately preparing new teachers to present in-depth lessons. This article looks at research on these issues and considers what can be done to address the decline in the quantity and quality of social studies lessons.     

Sexual and Reproductive Health Behaviors of California Community College Students

Abstract

Objective: To explore the sexual and reproductive health behaviors of students from 13 community college campuses in California. Participants: Heterosexual college students, ages 18 to 24, who have had sexual intercourse (N = 4,487). Methods: The American College Health Association's National College Health Assessment (ACHA-NCHA) survey was administered in class to randomly selected classrooms at 12 institutions and electronically to randomly selected e-mails of students at 1 institution from March through April 2007. Results: This sample of community college students reported higher rates of risky sexual behaviors, unintended pregnancy, emergency contraception, and sexually transmitted diseases, and lower rates of human immunodeficiency virus (HIV) testing, than the overall ACHA-NCHA reference group. Those who had been tested for HIV reported more sexual partners, and lower rates of condom use. Conclusions: The data provide justification for broader educational programs and access to family planning services, condoms, and HIV testing on community college campuses.     

HIV conspiracy theory beliefs mediates the connection between HIV testing attitudes and HIV prevention self-efficacy

Abstract

Objective: High rates of sexually transmitted infections (STIs) and human immunodeficiency virus (HIV) can be found in states in both the Appalachian and Southeastern regions of the United States. As infection rates increase, it is imperative to understand factors that improve HIV prevention. The current work explored whether HIV conspiracy beliefs influences the link between HIV testing attitudes and perceived prevention ability. Participants: Four samples were collected during Fall 2013 (N?=?373), Spring 2014 (N?=?231), Fall 2014 (N?=?345), and Spring 2015 (N?=?369) at a rural, Southeastern, Appalachian university. Methods: Participants in all samples completed an online survey. Results: Four studies showed that HIV conspiracy theory beliefs mediated the relationship between HIV testing attitudes and HIV prevention self-efficacy. Conclusions: HIV conspiracy theory beliefs at least partially explain the connection between testing attitudes and HIV prevention self-efficacy. Results have implications for the role of HIV testing attitudes, beliefs, and self-efficacy.     

动画技术在职业技能鉴定培训中的应用——以西药药剂员为例

职业技能鉴定是落实就业准入制度的重要途径。以西药药剂员为例,将动画技术应用于职业技能鉴定培训,有效地弥补了实训条件欠缺的不足,也为动画技术在理论教学与实践实训教学中的应用提供参考。     

Screening for Sexually Transmitted Infections (STIs) Among a Heterogeneous Group of WSW(M)

ABSTRACT

Objectives: This study explored predictors of STI screening among a heterogeneous group of women who have sex with women and men. Methods: Following bivariate analyses, a multivariate logistic regression model was conducted to assess the relationship between testing and sociodemographic, relationship characteristics. Results: The majority of participants reported not receiving STI screening in the past year. Gender expression, and not sexual orientation, was a significant predictor of screening. For each increase in masculinity, participants had lower odds of receiving an STI test. Conclusions: More research is needed to understand how gender expression of WSW(M) relates to preventative health behaviors.     

Clinical Ratings of Parenting Capacity and Rorschach Protocols of Custody-Disputing Parents: An Exploratory Study

SUMMARY

In this study, the Rorschach protocols of 98 parents undergoing custody evaluations were correlated with clinical judgments of their alienating co-parenting behavior, parent-child role reversal, lack of warm and involved parenting, and abuse of the child. The results indicate that this personality assessment instrument, scored according to the Comprehensive System, is likely to provide a relatively rich source of data relevant to assessing parenting skills and capacities in custody-disputing families that are convergent with clinical assessments drawn from clinical interviews, parent-child observations, and substantiated histories of child abuse.