Word Learning in Children Following Cochlear Implantation

An experimental procedure was developed to investigate word-learning skills of children who use cochlear implants (CIs). Using interactive play scenarios, 2- to 5-year olds were presented with sets of objects (Beanie Baby stuffed animals) and words for their names that corresponded to salient perceptual attributes (e.g., "horns" for a goat). Their knowledge of the word-object associations was measured immediately after exposure and then following a 2-hour delay. Children who use cochlear implants performed more poorly than age-matched children with typical hearing both receptively and expressively. Both groups of children showed retention of the word-object associations in the delayed testing conditions for words that were previously known. Our findings suggest that although pediatric CI users may have impaired phonological processing skills, their long-term memory for familiar words may be similar to children with typical hearing. Further, the methods that developed in this study should be useful for investigating other aspects of word learning in children who use CIs.     

Can faster income growth reduce well-being?

In his book Luxury Fever: Why Money Fails to Satisfy in an Era of Excess (1999) economist Robert Frank describes a number of significant trends in the U.S., and to a lesser extent in other industrial economies, since the late 1970s: rapidly rising incomes, for those at the upper end of the income scale, increasing hours of work, and increased consumerism (share of consumption of ‘status goods’). We demonstrate that the first development can parsimoniously account for the latter two. Our novel specification of the utility function simultaneously incorporates a relative-consumption effect for status goods and non-homotheticity of preferences between status and non-status goods, and we also allow for endogenous labour–leisure choice. It is possible that well-being has declined, notwithstanding the faster income growth, or at least not risen pari passu with the growth in earnings. Comparisons are made with other studies, and policy implications briefly discussed.

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Differentiating self-neglect as a type of elder mistreatment: how do these cases compare to traditional types of elder mistreatment?

Official estimates suggest that self-neglect is the most common type of elder mistreatment. Interestingly, very few researchers have empirically assessed self-neglect as a type of elder mistreatment. In the current study, attention is given to how self-neglect cases handled by adult protective services agencies compare to other types of elder mistreatment. Comparisons are made between the needs of self-neglect clients and other protective services clients as well as the role of stress in the different types of abuse. Findings suggest that self-neglect clients are less likely to need help with certain functional activities. In addition, those who are married and those who have completed fewer years of education are less likely to be labeled as experiencing self-neglect. City differences in rates of self-neglect were also found. Not surprisingly, self-neglect clients were more likely than other protective services clients to refuse services. Implications are provided.     

Barriers to returning to work for people with spinal cord injuries: a focus group study

The rate of employment for people with spinal cord injuries is relatively low, especially among Asians. To help individuals with spinal cord injuries return to work or retain employment, rehabilitation professionals must understand the barriers to employment and intervene to reduce or remove them. Hence, a focus group study was administered to 16 people with spinal cord injuries to explore return to work barriers. Various ideas, beliefs, responses, and values at different stages of work resettlement were elicited from both employed and unemployed participants, and then summarized. According to the results, several modifications of existing forms of rehabilitation intervention are necessary, as are further research directions.     

Differences in childhood sexual abuse experience between adult Hispanic and Anglo women in a primary care setting

The literature on racial and ethnic factors in childhood sexual abuse is limited. The purpose of this exploratory study was to document Hispanic-Anglo differences in childhood sexual abuse experiences and assess whether these differences may be explained by socio-demographic and family environmental differences. Adult Hispanic (n = 69) and Anglo (n = 19) women from a family medicine clinic waiting room reporting a history of childhood sexual abuse completed an in-depth survey concerning the sexual abuse experience and their childhood environment. In this study, Hispanics were more likely to report a family member as the perpetrator and to experience more self-blame as a result of the abuse. Hispanics were also more likely to take action in response to the abuse, especially those who were more acculturated to U.S. culture. However, most of the observed differences in this study could be explained by socio-demographic or family environment variables, not by ethnic background. Qualitative research on the family environments of Hispanic victims of child sexual abuse may further explicate the dynamics and risk factors for abuse by family members.     

The effects of physical activity and sedentary behavior on cognitive health in older adults

Physical activity has been shown to be positively associated with cognitive health, but the mechanisms underlying the benefits of physical activity on cognitive health are unclear. The present study simultaneously examined two hypotheses using structural equation modeling (SEM). The depression-reduction hypothesis states that depression suppresses cognitive ability and that physical activity alleviates dysphoric mood and thereby improves cognitive ability. The social-stimulation hypothesis posits that social contact, which is often facilitated by socially laden physical activities, improves cognitive functioning by stimulating the nervous system. Sedentary behavior in the absence of physical activity is expected to exert an inverse relationship on cognitive health through each of these hypotheses. Community-dwelling elders (N = 158) were administered a variety of measures of cognition, depression, social support, and physical activity. SEM techniques provided partial support for the social-stimulation hypothesis and depression-reduction hypothesis. Implications for treating depression and improving cognitive functioning are discussed.     

The Relationship Between Wife’s Education and Husband’s Earnings: Evidence from 1960 to 2000

Previous research finds a positive relationship between a wife’s education and her husband’s earnings using data from the 1960s. Earlier theories suggest that benefits accrue from informational sharing between partners in a marriage. This paper tests the hypothesis that a wife’s education is positively associated with her husband’s earnings, using data from the 1960, 1970, 1980, 1990, and 2000 Censuses. Between 1960 and 2000, the educational attainment and labor-force participation of married women has increased dramatically. As women have embarked upon their own careers, has their education continued to be positively associated with their husbands’ earnings? Yes. The coefficient of the wife’s education remains positive and significant for all the years under study. The size of the coefficient decreases, however, from 1960 to 2000.     

Slice sampling for simulation based fitting of spatial data models

An auxiliary variable method based on a slice sampler is shown to provide an attractive simulation-based model fitting strategy for fitting Bayesian models under proper priors. Though broadly applicable, we illustrate in the context of fitting spatial models for geo-referenced or point source data. Spatial modeling within a Bayesian framework offers inferential advantages and the slice sampler provides an algorithm which is essentially off the shelf. Further potential advantages over importance sampling approaches and Metropolis approaches are noted and illustrative examples are supplied.