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941.
The efficacy of tests of differential item functioning (measurement invariance) has been well established. It is clear that when properly implemented, these tests can successfully identify differentially functioning (DF) items when they exist. However, an assumption of these analyses is that the metric for different groups is linked using anchor items that are invariant. In practice, however, it is impossible to be certain which items are DF and which are invariant. This problem of anchor items, or referent indicators, has long plagued invariance research, and a multitude of suggested approaches have been put forth. Unfortunately, the relative efficacy of these approaches has not been tested. This study compares 11 variations on 5 qualitatively different approaches from recent literature for selecting optimal anchor items. A large-scale simulation study indicates that for nearly all conditions, an easily implemented 2-stage procedure recently put forth by Lopez Rivas, Stark, and Chernyshenko (2009) provided optimal power while maintaining nominal Type I error. With this approach, appropriate anchor items can be easily and quickly located, resulting in more efficacious invariance tests. Recommendations for invariance testing are illustrated using a pedagogical example of employee responses to an organizational culture measure. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献
942.
Chris W. Wright Chris J. Sablynski Todd M. Manson Steven Oshiro 《Journal of applied social psychology》2012,42(11):2834-2857
Popularized by Microsoft in the 1990s, the puzzle interview is being used with greater frequency by employers in a variety of industries. The present study was designed to explore applicant reactions to puzzle interviews. 360 participants watched either a puzzle interview or a behavioral interview. The job for which the interviewee was applying was also manipulated. Results showed that participant ratings of several reactions variables were significantly lower for puzzle interviews. The findings were consistent across four different jobs. Implications for the use of puzzle interviews in industry and for future research are discussed. 相似文献
943.
The present study investigated the role of temperature as a contextual condition for motor skill learning. Precision grip task training occurred while forearm cutaneous temperature was either heated (40-45 °C) or cooled (10-15 °C). At test, temperature was either reinstated or changed. Performance was comparable between training conditions while at test, temperature changes decreased accuracy, especially after hot training conditions. After cold training, temperature change deficits were only evident when concurrent force feedback was presented. These findings are the first evidence of localized temperature dependency in motor skill learning in humans. Results are not entirely accounted for by a context-dependent memory explanation and appear to represent an interaction of neuromuscular and sensory processes with the temperature present during training and test. 相似文献
944.
Cory D. Wright 《Philosophical Studies》2012,159(1):89-105
Although it??s sometimes thought that pluralism about truth is unstable??or, worse, just a non-starter??it??s surprisingly difficult to locate collapsing arguments that conclusively demonstrate either its instability or its inability to get started. This paper exemplifies the point by examining three recent arguments to that effect. However, it ends with a cautionary tale; for pluralism may not be any better off than other traditional theories that face various technical objections, and may be worse off in facing them all. 相似文献
945.
946.
The trajectory toward tenure is complex and arduous, and it requires one to balance attention among diverse and competing
demands. It is not surprising that many newly appointed assistant professors report struggling with this process. Borrowing
from family and ecological systems theories, we proffer a framework that may help junior faculty members—defined in this article
as tenure-earning assistant professors—learn about the tenure-earning process as they navigate through the university system
and beyond. We also describe and clarify the many parts of the tenure-earning process, including the roles, responsibilities,
and multiple contexts that must be considered concurrently by junior faculty members as they progress through the stages of
their tenure-earning appointment in the academy. 相似文献
947.
This study examined whether recalling an event with a co-witness influences children's recall. Individual 3-5-year-olds (n = 48) watched a film with a co-witness. Unbeknown to participants, the co-witness was watching an alternative version of the film. Afterwards both the co-witness and the participant answered questions about the film together (public recall), and the degree to which children conformed to the co-witness's alternative version of events was measured. Subsequently participants were questioned again individually (private recall). Children also completed false belief and inhibitory control tasks. By separating errors made in public and private, the results indicated that both social conformity (32% of errors) and memory distortion (68% of errors) played a role in co-witness influence. Inhibitory control predicted the likelihood of retracting errors in private, but only for children who failed (r=.66) rather than passed false belief tasks (r=-.10). The results suggest that children with a theory of mind conform in the company of the co-witness to avoid social embarrassment, while those a poor theory of mind conform on the basis of an inability to inhibit the co-witness's response. The findings contribute to our understanding of the motivations responsible for co-witness conformity across early childhood. 相似文献
948.
Hutchinson KM McLaughlin KJ Wright RL Bryce Ortiz J Anouti DP Mika A Diamond DM Conrad CD 《Neurobiology of learning and memory》2012,97(2):250-260
Chronic stress has detrimental effects on hippocampal integrity, while environmental enrichment (EE) has beneficial effects when initiated early in development. In this study, we investigated whether EE initiated in adulthood would mitigate chronic stress effects on cognitive function and hippocampal neuronal architecture, when EE started one week before chronic stress began, or two weeks after chronic stress onset. Adult male Sprague Dawley rats were chronically restrained (6h/d) or assigned as non-stressed controls and subdivided into EE or non-EE housing. After restraint ended, rats were tested on a radial arm water maze (RAWM) for 2-d to assess spatial learning and memory. The first study showed that when EE began prior to 3-weeks of chronic stress, EE attenuated chronic stress-induced impairments in acquisition, which corresponded with the prevention of chronic stress-induced reductions in CA3 apical dendritic length. A second study showed that when EE began 2-weeks after the onset of a 5-week stress regimen, EE blocked chronic stress-induced impairments in acquisition and retention at 1-h and 24-h delays. RAWM performance corresponded with CA3 apical dendritic complexity. Moreover, rats in EE housing (control or stress) exhibited similar corticosterone profiles across weeks, which differed from the muted corticosterone response to restraint by the chronically stressed pair-housed rats. These data support the interpretation that chronic stress and EE may act on similar mechanisms within the hippocampus, and that manipulation of these factors may yield new directions for optimizing brain integrity and resilience under chronic stress or stress related neuropsychological disorders in the adult. 相似文献
949.
In this study, the authors evaluated aspects of criterion validity and clinical utility of the grandiosity and vulnerability components of the Pathological Narcissism Inventory (PNI) using two undergraduate samples (N = 299 and 500). Criterion validity was assessed by evaluating the correlations of narcissistic grandiosity and narcissistic vulnerability with established indices of normal personality traits, psychopathology and clinical concerns, and pathological personality traits. Overall, the pattern of correlations supported the convergent and discriminant validity of grandiose and vulnerable conceptualizations of pathological narcissism as measured by the PNI. Clinical utility was assessed by evaluating the extent to which clinicians without specific training in pathological narcissism as well as clinicians with expertise in pathological narcissism could accurately predict the correlates of PNI grandiosity and vulnerability with normal and pathological personality traits and psychopathology. The r(contrast-cv) coefficient provided a global index of accuracy in clinicians' predictions that was more fully elaborated by examining systematic discrepancies across groups. Overall, novice and expert clinicians were generally able to predict criterion correlations, with some exceptions (e.g., counter to predictions, pathological narcissism was negatively associated with treatment resistance). These results provide further evidence regarding the validity and utility of the narcissistic grandiosity and narcissistic vulnerability constructs as measured by the PNI. 相似文献
950.