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161.
Elliott MN McCaffrey D Perlman J Marshall GN Hambarsoomians K 《Public opinion quarterly》2009,73(1):56-73
We consider situations in which externally observable characteristics allow experts to quickly categorize individual households as likely or unlikely to contain a member of a rare target population. This classification can form the basis of disproportionate stratified sampling such that households classified as "unlikely" are sampled at a lower rate than those classified as "likely," thereby reducing screening costs. Design weights account for this approach and allow unbiased estimates for the target population.We demonstrate that with sensitivity and specificity of expert classification at least 70%, and ideally at least 80%, our approach can economically increase effective sample size for a rare population. We develop heuristics for implementing this approach and demonstrate that sensitivity drives design effects and screening costs whereas specificity only drives the latter. We demonstrate that the potential gains from this approach increase as the target population becomes rarer. We further show that for most applications, unlikely strata should be sampled at 1/6 to ? the rate of likely strata.This approach was applied to a survey of Cambodian immigrants in which the 82% of households rated "unlikely" were sampled at ? the rate as "likely" households, reducing screening from 9.4 to 4.0 approaches per complete. Sensitivity and specificity were 86% and 91% respectively. Weighted estimation had a design effect of 1.26 so screening costs per effective sample size were reduced 47%. We also note that in this instance, expert classification appeared to be uncorrelated with survey outcomes of interest among eligibles. 相似文献
162.
163.
Recognizing Emotions in a Foreign Language 总被引:1,自引:0,他引:1
Marc D. Pell Laura Monetta Silke Paulmann Sonja A. Kotz 《Journal of Nonverbal Behavior》2009,33(2):107-120
Expressions of basic emotions (joy, sadness, anger, fear, disgust) can be recognized pan-culturally from the face and it is
assumed that these emotions can be recognized from a speaker’s voice, regardless of an individual’s culture or linguistic
ability. Here, we compared how monolingual speakers of Argentine Spanish recognize basic emotions from pseudo-utterances (“nonsense
speech”) produced in their native language and in three foreign languages (English, German, Arabic). Results indicated that
vocal expressions of basic emotions could be decoded in each language condition at accuracy levels exceeding chance, although
Spanish listeners performed significantly better overall in their native language (“in-group advantage”). Our findings argue
that the ability to understand vocally-expressed emotions in speech is partly independent of linguistic ability and involves
universal principles, although this ability is also shaped by linguistic and cultural variables.
相似文献
Marc D. PellEmail: URL: www.mcgill.ca/pell_lab |
164.
In 2008 California was divided over Proposition 8, a measure designed to prohibit same-sex marriage. In this article, we focus on a university classroom setting to explore how discussions about Proposition 8 and homophobia led to what Turner (1986) termed a social drama. Drawing on student personal narratives as they moved through the stages of social drama, we provide a poignant example of the conflict that may erupt when homophobia and heteronormativity are part of the curriculum. After documenting the social drama, we offer pedagogical strategies and note the strategic ways Christian, hegemonic discourse is utilized during discussions about homophobia. 相似文献
165.
Drasin H Beals KP Elliott MN Lever J Klein DJ Schuster MA 《Journal of homosexuality》2008,54(4):381-399
As the social context in which gay men live changes due to greater visibility, greater acceptance, and easier access to gay subculture, gay males may self-identify and take part in gay social activities at earlier ages than in the past. This study examined whether developmental milestones associated with sexual orientation for gay men have changed over the past several decades. A large and diverse sample of 2,402 gay men who responded to a 1994 survey published in a national magazine provided retrospective information on the age at which they reached individual psychological, social, and sexual behavior developmental milestones. We found evidence that individual psychological and sexual behavior milestones (e.g., awareness of attraction to males, having an orgasm with other male) are slowly moving toward earlier chronological ages (by 1 year of age every 8-25 years, p < 0.05), whereas social milestones (e.g., coming out) are moving more rapidly in a similar direction (by 1 year of age every 2-5 years, p < 0.001). The authors perform an innovative sensitivity test to demonstrate the persistence of the finding after correcting for the bias attributable to underrepresentation of those who have not yet self-identified as gay in such samples. 相似文献
166.
The Ways of Mattering questionnaire (N. E. Amundson, 1993, 2003) was developed to evaluate clients' perceptions of a counseling relationship. This study reports the construct and convergent validities of the Ways of Mattering as well as the internal consistency of each of its subscales for people with mental illness who were registered in supported employment programs. The questionnaire demonstrated satisfactory validity and reliability with this population. The instrument could be useful for identifying the basic and positive elements required to establish a solid foundation for developing a working alliance between the counselor and the client. 相似文献
167.
Grant JE Kim SW Potenza MN 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2003,19(1):85-109
In the present paper we discuss the current status of drug treatment for pathological gambling and the scientific rationales underlying the various pharmacological approaches. Specifically, we summarize the treatment study results of serotonin reuptake inhibitors, mood stabilizers, opioid antagonists, and atypical antipsychotics in pathological gambling. We also discuss dosage strategies, the duration of treatment, issues surrounding medication compliance, and approaches to treatment-refractory pathological gambling, such as pharmacological and behavioral augmentation. 相似文献
168.
Neurodevelopment,impulsivity, and adolescent gambling 总被引:4,自引:0,他引:4
Chambers RA Potenza MN 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2003,19(1):53-84
The prevalence of problem and pathological gambling in adolescence and young adulthood has been found to be two- to fourfold higher than in adulthood. Given that these high rates might predict future increases across all age groups, it is important to explore the causes of the elevated rates of problem and pathological gambling among youths. This article reviews evidence for a neurobiological basis for adolescent vulnerability to problem and pathological gambling behaviors. We propose that a common trait motif of impulsivity might underlie phenomenology of pathological gambling, commonly comorbid psychiatric disorders, and related aspects of adolescent behavior. Recent advances in understanding the brain mechanisms involved in motivation, reward, and decision-making allow a discussion of neural circuitry underlying impulsivity. Emerging data indicate that important neurodevelopmental events during adolescence occur in brain regions associated with motivation and impulsive behavior. We hypothesize that immaturity of frontal cortical and subcortical monoaminergic systems during normal neurodevelopment underlies adolescent impulsivity as a transitional trait-behavior. While these neurodevelopmental processes may confer advantage by promoting a learning drive for optimal adaptation to adult roles, they may also confer an increased vulnerability to addictive behaviors such as problem and pathological gambling. An exploration of the developmental changes in neural circuitry involved in impulse control has significant implications for understanding adolescent behaviors and treating problem and pathological gambling among youths. 相似文献
169.
Previous research employing the facial affect decision task (FADT) indicates that when listeners are exposed to semantically
anomalous utterances produced in different emotional tones (prosody), the emotional meaning of the prosody primes decisions about an emotionally congruent rather than incongruent facial expression (Pell, M. D., Journal of Nonverbal Behavior, 29, 45–73). This study undertook further development of the FADT by investigating the approximate timecourse of prosody–face interactions in nonverbal emotion processing. Participants executed facial affect decisions about happy and sad face targets after listening to utterance fragments produced in an emotionally related, unrelated, or neutral prosody, cut to 300, 600, or 1000 ms in duration. Results underscored that prosodic information enduring at least 600 ms
was necessary to presumably activate shared emotion knowledge responsible for prosody–face congruity effects.
Marc D. Pell is affiliated with the School of Communication Sciences and Disorders, McGill University, Montréal, Canada. 相似文献
170.
Search Institute's decade-plus emphasis on the elements of positive human development and community approaches to asset building can make a meaningful contribution to the field of child welfare. The institute's framework of developmental assets identifies a set of interrelated experiences, relationships, skills, and values that are associated with reduced high-risk behaviors and increased thriving behaviors. Its community-building work emphasizes the human relations and developmental infrastructure children, youth, and families require for their health and well-being. 相似文献