Understanding heterosexual Chinese college students' intention to adopt safer sex behaviors

This study aimed to examine Chinese college students' safer sex behaviors and to explore whether or not the Theory of Reasoned Action would be useful in understanding AIDS/HIV‐prevention behaviors of Chinese students. A total of 455 Chinese college students (161 males and 267 females) in Hong Kong participated in the study. Results revealed that 24% of the students were sexually active during the surveyed year, with only 38.2% of them reporting regular condom use. About one third of the students intended to experiment with casual sex in the future, but only 64% would use condoms regularly if they were to have future casual sexual encounters. Results indicated that the Theory of Reasoned Action was most applicable in understanding Chinese college students’ intention to use condoms in future casual sexual encounters, rather than in current and future regular sexual activities. Specifically, students who intended‐to use condoms in future casual sex encounters tended to have accurate AIDS/HIV information, show little prejudice against people with AIDS/HIV, demonstrate greater concern about contracting AIDS/HIV, feel confident in condom use, and have positive attitudes toward safer sex behaviors. Gender disparity was also noted in the pattern of associations between safer sex behaviors and various psychological variables. Limitations of the present study and implications for future research were also discussed.     

Glorious Work: employment of adults with a learning disability in Guangzhou from the perspective of their parents

Promises and policies in ensuring employment opportunities for disabled people are stipulated in the State Laws and local regulations of the People's Republic of China. It is assumed that having a job implies better integration in society. However, the experience of young adults with learning disability in finding jobs tells a very different story. This article analyses the experience, perceptions and worries of parents of such young adults who are employed or have striven hard to obtain a job, comparing the ideal with a very different reality.     

Efficient heterogeneous sampling for stochastic simulation with an illustration in health care applications

In modeling disease transmission, contacts are assumed to have different infection rates. A proper simulation must model the heterogeneity in the transmission rates. In this article, we present a computationally efficient algorithm that can be applied to a population with heterogeneous transmission rates. We conducted a simulation study to show that the algorithm is more efficient than other algorithms for sampling the disease transmission in a subset of the heterogeneous population. We use a valid stochastic model of pandemic influenza to illustrate the algorithm and to estimate the overall infection attack rates of influenza A (H1N1) in a Canadian city.     

Cow, compass, bang

Do cows really sense the earth's magnetic field and point north? Yan Wong had five minutes of film time to explain the statistics of finding out.     

The asymptotic distribution of a pivotal quantity for a capture-recapture model

A pivotal quantity for a capture-recapture model is introduced and used to construct an asymptotic confidence region for (ε,N), where ε is the capture efficiency and N is the population size. The true confidence levels of certain regions are obtained by simulation. Certain confidence regions for (ε,N) are drawn to show the size of the regions and to show how confidence limits for N depend on ε.     

Improved likelihood-based inference for the stationary AR(2) model

An improved likelihood-based method based on Fraser et al. (1999) is proposed in this paper to test the significance of the second lag of the stationary AR(2) model. Compared with the test proposed by Fan and Yao (2003) and the signed log-likelihood ratio test, the proposed method has remarkable accuracy. Simulation studies are performed to illustrate the accuracy of the proposed method. Application of the proposed method on historical data is presented to demonstrate the implementation of this method. Furthermore, the method can be extended to the general AR(p) model.     

Conceptualizing maternal and paternal autonomy support and control among adolescents in Hong Kong

This study examined how parental autonomy support and control are conceptualized by adolescents in Hong Kong (Grades 7–11) using the Perceived Parental Autonomy Support Scale. Competitive models were evaluated using confirmatory factor analyses. Although the 6-factor model demonstrated the best fit, further analyses indicated that a second-order structure was more appropriate. Provision of choice, acknowledgment of child's feelings, rationale for rules, and demands subsumed under autonomy support. Guilt-inducing criticisms and the use of threats subsumed under control. Performance pressure emerged as a first-order construct on its own. Measurement invariance was evident across adolescent gender and age. All subscales had adequate to strong reliability. Discriminate validity was evident. Findings offer insights into the conceptualization of autonomy support and control in Hong Kong.     

The Quality of Life of Hong Kong’s Poor Households in the 1990s: Levels of Expenditure, Income Security and Poverty

This paper examines the changes in the quality of life of poor households in Hong Kong in the late 1990s by analyzing their levels of expenditure, income security and poverty before and after 1997. Though there have been significant increases in the levels of expenditure among CSSA recipients, the expenditure among these poorest households in Hong Kong is still below that of non-CSSA recipients. Increasing poverty in Hong Kong is the result of increasing housing costs borne by these low expenditure households, who have to squeeze their expenditure on food and other items in order to meet the rising cost of housing. De-industrialisation and mass unemployment have given capital and the state unchecked authority to restructure the economy and to deregulate the labour market. Many low-income households have been hit hard as they faced redundancy, unemployment and wage-cuts after the 1997 Asian financial crisis. What jobs have been created are mostly part-time, temporary and contract jobs, and there has thus been an erosion in both job and income security. The quality of life of poor households is devastating not only in the sense that their living standards are low, but also that they are socially excluded from the mainstream of society.     

Comorbid mood and adjustment disorders among pathological gamblers seeking treatment in Hong Kong

Research findings on comorbidity and pathological gambling are non–existent in Chinese communities. The objectives of this study were to: (a) determine the prevalence of comorbid mood and adjustment disorders among pathological gamblers seeking treatment in Hong Kong; (b) compare demographic profiles and clinical features in pathological gamblers with and without comorbid mood and adjustment disorders; and (c) explore the association and temporal relationship between pathological gambling and comorbid mood and adjustment disorders. Assessment instruments included demographic data, BSI, SCID-I, ASI and LIFE-RIFT. Results showed that about two-thirds (63.7%; n = 128) of 201 participants reported lifetime comorbid psychiatric disorders. Most common comorbid disorders were mood disorders (29.4%; n = 59) and adjustment disorders (20.9%; n = 42). Pathological gamblers with comorbid mood or adjustment disorders showed more severe levels of psychopathology, impairment in psychosocial functioning and gambling problems. This study is important because it is the first scientific comorbidity study among pathological gamblers in a Chinese context.