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851.
Direct-to-consumer genetic testing has generated speculation about how customers will interpret results and how these interpretations will influence healthcare use and behavior; however, few empirical data on these topics exist. We conducted an online survey of DTC customers of 23andMe, deCODEme, and Navigenics to begin to address these questions. Random samples of U.S. DTC customers were invited to participate. Survey topics included demographics, perceptions of two sample DTC results, and health behaviors following DTC testing. Of 3,167 DTC customers invited, 33% (n?=?1,048) completed the survey. Forty-three percent of respondents had sought additional information about a health condition tested; 28% had discussed their results with a healthcare professional; and 9% had followed up with additional lab tests. Sixteen percent of respondents had changed a medication or supplement regimen, and one-third said they were being more careful about their diet. Many of these health-related behaviors were significantly associated with responses to a question that asked how participants would perceive their colon cancer risk (as low, moderate, or high) if they received a test result showing an 11% lifetime risk, as compared to 5% risk in the general population. Respondents who would consider themselves to be at high risk for colon cancer were significantly more likely to have sought information about a disease (p?=?0.03), discussed results with a physician (p?=?0.05), changed their diet (p?=?0.02), and started exercising more (p?=?0.01). Participants’ personal health contexts—including personal and family history of disease and quality of self-perceived health—were also associated with health-related behaviors after testing. Subjective interpretations of genetic risk data and personal context appear to be related to health behaviors among DTC customers. Sharing DTC test results with healthcare professionals may add perceived utility to the tests. 相似文献
852.
Weissman SM Burt R Church J Erdman S Hampel H Holter S Jasperson K Kalady MF Haidle JL Lynch HT Palaniappan S Wise PE Senter L 《Journal of genetic counseling》2012,21(4):484-493
Identifying individuals who have Lynch syndrome (LS) involves a complex diagnostic work up that includes taking a detailed family history and a combination of various genetic and immunohistochemical tests. The National Society of Genetic Counselors (NSGC) and the Collaborative Group of the Americas on Inherited Colorectal Cancer (CGA-ICC) have come together to publish this clinical practice testing guideline for the evaluation of LS. The purpose of this practice guideline is to provide guidance and a testing algorithm for LS as well as recommendations on when to offer testing. This guideline does not replace a consultation with a genetics professional. This guideline includes explanations in support of this and a summary of background data. While this guideline is not intended to serve as a review of LS, it includes a discussion of background information on LS, and cites a number of key publications which should be reviewed for a more in-depth understanding of LS. These guidelines are intended for genetic counselors, geneticists, gastroenterologists, surgeons, medical oncologists, obstetricians and gynecologists, nurses and other healthcare providers who evaluate patients for LS. 相似文献
853.
This article reviews the Akaike information criterion (AIC) and the Bayesian information criterion (BIC) in model selection and the appraisal of psychological theory. The focus is on latent variable models, given their growing use in theory testing and construction. Theoretical statistical results in regression are discussed, and more important issues are illustrated with novel simulations involving latent variable models including factor analysis, latent profile analysis, and factor mixture models. Asymptotically, the BIC is consistent, in that it will select the true model if, among other assumptions, the true model is among the candidate models considered. The AIC is not consistent under these circumstances. When the true model is not in the candidate model set the AIC is efficient, in that it will asymptotically choose whichever model minimizes the mean squared error of prediction/estimation. The BIC is not efficient under these circumstances. Unlike the BIC, the AIC also has a minimax property, in that it can minimize the maximum possible risk in finite sample sizes. In sum, the AIC and BIC have quite different properties that require different assumptions, and applied researchers and methodologists alike will benefit from improved understanding of the asymptotic and finite-sample behavior of these criteria. The ultimate decision to use the AIC or BIC depends on many factors, including the loss function employed, the study's methodological design, the substantive research question, and the notion of a true model and its applicability to the study at hand. 相似文献
854.
Recent research indicates that toddlers and infants succeed at various non-verbal spontaneous-response false-belief tasks; here we asked whether toddlers would also succeed at verbal spontaneous-response false-belief tasks that imposed significant linguistic demands. We tested 2.5-year-olds using two novel tasks: a preferential-looking task in which children listened to a false-belief story while looking at a picture book (with matching and non-matching pictures), and a violation-of-expectation task in which children watched an adult 'Subject' answer (correctly or incorrectly) a standard false-belief question. Positive results were obtained with both tasks, despite their linguistic demands. These results (1) support the distinction between spontaneous- and elicited-response tasks by showing that toddlers succeed at verbal false-belief tasks that do not require them to answer direct questions about agents' false beliefs, (2) reinforce claims of robust continuity in early false-belief understanding as assessed by spontaneous-response tasks, and (3) provide researchers with new experimental tasks for exploring early false-belief understanding in neurotypical and autistic populations. 相似文献
855.
Four experiments (total N = 391) examined predictions derived from a biologically based incentive salience theory of approach motivation. In all experiments, judgments indicative of enhanced perceptual salience were exaggerated in the context of positive, relative to neutral or negative, stimuli. In Experiments 1 and 2, positive words were judged to be of a larger size (Experiment 1) and led individuals to judge subsequently presented neutral objects as larger in size (Experiment 2). In Experiment 3, similar effects were observed in a mock subliminal presentation paradigm. In Experiment 4, positive word primes were perceived to have been presented for a longer duration of time, again relative to both neutral and negative word primes. Results are discussed in relation to theories of approach motivation, affective priming, and the motivation-perception interface. 相似文献
856.
James Phillips Allen Frances Michael A Cerullo John Chardavoyne Hannah S Decker Michael B First Nassir Ghaemi Gary Greenberg Andrew C Hinderliter Warren A Kinghorn Steven G LoBello Elliott B Martin Aaron L Mishara Joel Paris Joseph M Pierre Ronald W Pies Harold A Pincus Douglas Porter Claire Pouncey Michael A Schwartz Thomas Szasz Jerome C Wakefield G Scott Waterman Owen Whooley Peter Zachar 《Philosophy, ethics, and humanities in medicine : PEHM》2012,7(1):1-29
In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM - whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part I of this article will take up the first two questions. With the first question, invited commentators express a range of opinion regarding the nature of psychiatric disorders, loosely divided into a realist position that the diagnostic categories represent real diseases that we can accurately name and know with our perceptual abilities, a middle, nominalist position that psychiatric disorders do exist in the real world but that our diagnostic categories are constructs that may or may not accurately represent the disorders out there, and finally a purely constructivist position that the diagnostic categories are simply constructs with no evidence of psychiatric disorders in the real world. The second question again offers a range of opinion as to how we should define a mental or psychiatric disorder, including the possibility that we should not try to formulate a definition. The general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances. 相似文献
857.
Scott A. Boles Ph.D. 《Psychoanalytic Inquiry》2013,33(4):402-415
This article summarizes the treatment of a severely disturbed four-year-old boy who represents the widening scope of child analysis—a boy whose exposure to an array of traumas undermined his ego development, distorted his object relations, and interfered with his developmental progression. Earlier generations of analysts would have viewed such a child as possessing too many ego deviations or deficits to be considered analyzable. Such traditional ideas about analyzability are at odds with more recent research, however. Thus, Fonagy's and Target's (1996) research found child analysis to be the optimal treatment for children with severe and complex psychopathology. This article presents analytic material that supports this research and demonstrates (1) that severely disturbed children are analyzable and capable of deep and meaningful change, (2) that early intervention is imperative, (3) that an analytic framework involving four or more sessions per week is essential in containing and regulating affect, (4) how functioning as a developmental object helps build the necessary mental structures to experience conflict, (5) that serving as a developmental object does not have to preclude the development of transference or a psychoanalytic process, and (6) that the analyst's gender can play an important role in promoting development and facilitating treatment. 相似文献
858.
Scott S. Wiltermuth Victor M. Bennett Lamar Pierce 《Organizational behavior and human decision processes》2013
Although unethical behavior often benefits third-parties not directly complicit in the misconduct, not all beneficiaries welcome these ill-gotten benefits. We investigate whether actors consider the ethical preferences of potential beneficiaries or rely solely on their own ethical predispositions when making decisions that affect others. Three studies demonstrate that the perceived ethical preferences of these beneficiaries can substantially influence the likelihood that actors behave unethically on their behalves. These studies show that actors consider the ethical preferences of beneficiaries only when their own ethical disposition is outcome-based. 相似文献
859.
Franca Tonnaer Maaike Cima Klaas Sijtsma Kasia Uzieblo Scott O. Lilienfeld 《Journal of psychopathology and behavioral assessment》2013,35(2):153-161
The current study reports validation results for the Psychopathic Personality Inventory (PPI) and its subscales, and for a newly developed PPI-Short Form (PPI-SF) in forensic and non-forensic populations. We also provide criterion reference scores for the PPI and the PPI-SF. In Study 1, we used PPI data from 1,065 participants and supplementary PCL-R data from a subsample of 91 forensic offenders. Mokken scale analysis was used to construct the PPI-SF. In Study 2, PPI-SF and PCL-R data were collected from 60 participants. The study yielded promising but preliminary support for the construct validity of the PPI and the PPI-SF. The PPI-SF is of interest for risk assessment because of its (a) strong relationship with the PCL-R total score and (b) subscales known for their predictive value for violence and criminal recidivism. 相似文献
860.
Thomas N. Ingram Raymond W. LaForge William B. Locander Scott B. MacKenzie Philip M. Podsakoff 《Journal of Personal Selling & Sales Management》2013,33(2):137-154
The changing environment facing sales organizations is characterized by the dimensions of complexity, collaboration, and accountability. Responding effectively to this dynamic environment requires a focus on specific leadership activities by senior sales leaders, field sales managers, and salespeople. A sales leadership framework is presented and used to identify and discuss specific leadership challenges and important research questions at different sales organization levels. Several new directions for sales leadership research are proposed to improve sales leadership thought and practice. 相似文献