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431.
Diniz A Wijnants ML Torre K Barreiros J Crato N Bosman AM Hasselman F Cox RF Van Orden GC Delignières D 《Human movement science》2011,30(5):889-905
1/f noise has been discovered in a number of time series collected in psychological and behavioral experiments. This ubiquitous phenomenon has been ignored for a long time and classical models were not designed for accounting for these long-range correlations. The aim of this paper is to present and discuss contrasted theoretical perspectives on 1/f noise, in order to provide a comprehensive overview of current debates in this domain. In a first part, we propose a formal definition of the phenomenon of 1/f noise, and we present some commonly used methods for measuring long-range correlations in time series. In a second part, we develop a theoretical position that considers 1/f noise as the hallmark of system complexity. From this point of view, 1/f noise emerges from the coordination of the many elements that compose the system. In a third part, we present a theoretical counterpoint suggesting that 1/f noise could emerge from localized sources within the system. In conclusion, we try to draw some lines of reasoning for going beyond the opposition between these two approaches. 相似文献
432.
Amy E. Crook Margaret E. Beier Cody B. Cox Harrison J. Kell Ashley Rittmayer Hanks Stephan J. Motowidlo 《International Journal of Selection & Assessment》2011,19(4):363-373
We report two studies that investigate single‐response situational judgment tests (SJTs) as measures of job knowledge. Study 1 examines relationships between job knowledge measured by a single‐response SJT, personality, and performance for museum tour guides. Study 2 extends Study 1's findings with a sample of volunteers using a single‐response SJT about volunteerism. In both studies, personality was related to knowledge, and knowledge predicted performance. In Study 2, knowledge accounted for incremental variance in performance beyond personality, but personality added no incremental variance beyond knowledge. Results suggest that knowledge of effective behavior and knowledge of ineffective behavior are separate constructs. These studies demonstrate the validity of single‐response SJTs and provide evidence that knowing what to do and what not to do are separate domains. 相似文献
433.
Individuals' memory experiences typically covary with those of others' around them, and on average, an item is more likely to be familiar if a companion recommends it as such. Although it would be ideal if observers could use the external recommendations of others' as statistical priors during recognition decisions, it is currently unclear how or if they do so. Furthermore, understanding the sensitivity of recognition judgments to such external cues is critical for understanding memory conformity and eyewitness suggestibility phenomena. To address this we examined recognition accuracy and confidence following cues from an external source (e.g., "Likely Old") that forecast the likely status of upcoming memory probes. Three regularities emerged. First, hit and correct-rejection rates expectedly fell when participants were invalidly versus validly cued. Second, hit confidence was generally higher than correct-rejection confidence, regardless of cue validity. Finally, and most noteworthy, cue validity interacted with judgment confidence such that validity heavily influenced the confidence of correct rejections but had no discernible influence on the confidence of hits. Bootstrap-informed Monte Carlo simulation supported a dual process recognition model under which familiarity and recollection processes counteract to heavily dampen the influence of external cues on average reported confidence. A 3rd experiment tested this model using source memory. As predicted, because source memory is heavily governed by contextual recollection, cue validity again did not affect confidence, although as with recognition it clearly altered accuracy. 相似文献
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436.
Research on neuropsychological difficulties among cancer patients has focused on chemotherapy as a primary cause, yet several
studies have now shown that some patients evidence cognitive weaknesses prior to chemotherapy. As an alternative to the ‘chemo–brain’
theory, this study examined the hypothesis that stress and coping style may be associated with observed neuropsychological
difficulties among female cancer patients. Thirty-six women completed neuropsychological testing and psychological questionnaires
following surgery for breast cancer and prior to any subsequent treatments. Twenty-seven percent of participants evidenced
deficits on at least one measure of verbal fluency, and 14% of participants were impaired on at least one memory measure.
Self-reported stress was correlated with deficits in memory, verbal fluency, and attention. Subsequent mediational analyses
indicated that use of passive coping styles may underlie this relationship between stress and neuropsychological deficits.
These findings highlight the potential relevance of psychological mechanisms, such as coping style, in cancer patients’ experience
of neuropsychological deficits. 相似文献
437.
This study investigated the relationship between life satisfaction, self-esteem, and perceived health for an ethnically diverse, low SES sample of primary care patients. Results indicated that several specific domains of health-related quality of life (HRQL), including health perception, social functioning, mental health, and energy/fatigue, significantly predicted life satisfaction in this sample of 60 patients. Self-esteem mediated this relationship, partially with health perception and fully with the remaining three domains. The results of this study underscore the importance of healthcare interventions that consider the bidirectional relationship between physical and emotional well-being. 相似文献
438.
This study was designed to examine whether radio format and musical artists' gender predict sexual content in trade advertisements geared toward radio program directors. Advertisements were coded from one of the leading music trade magazines, Radio & Records magazine, between 2002 and 2003. Results indicated that overall women artists used sexual content in trade advertisements more often and to a greater degree than did men. In some cases, advertisements in radio formats with younger demographic markets, such as pop or hip-hop, also used higher levels of sexual content. It is concluded that the organizational context of the commercial music industry helps to perpetuate status differences between women and men artists, which may then bring about a cognitive bias in the field that promotes women artists' over reliance on using sexual content in trade advertisements. 相似文献
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440.
The occupational aspirations and interests of a sample of culturally disadvantaged children aged 15½ years and a matched control group were compared. Whilst the disadvantaged boys aspired to jobs of lower social-class status than their control-group peers, the two girls' groups showed very similar aspiration levels, and the disadvantaged group as a whole was oriented towards skilled jobs. The mean occupational interest profiles of the groups did not differ significantly. A higher proportion of the disadvantaged children were reported as being unemployed shortly after leaving school. It is concluded that there was a serious mismatch between the career aspirations of some of the disadvantaged group and their prospects. Ways in which this might be reduced through better school careers guidance and education programmes are briefly considered. 相似文献