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661.
Staub A 《Psychonomic bulletin & review》2011,18(2):371-376
A word's predictability in context has a well-established effect on fixation durations in reading. To investigate how this effect is manifested in distributional terms, an experiment was carried out in which subjects read each of 50 target words twice, once in a high-predictability context and once in a low-predictability context. The ex-Gaussian distribution was fit to each subject's first-fixation durations and single-fixation durations. For both measures, the μ parameter increased when a word was unpredictable, while the τ parameter was not significantly affected, indicating that a predictability manipulation shifts the distribution of fixation durations but does not affect the degree of skew. Vincentile plots showed that the mean ex-Gaussian parameters described the typical distribution shapes extremely well. These results suggest that the predictability and frequency effects are functionally distinct, since a frequency manipulation has been shown to influence both μ and τ. The results may also be seen as consistent with the finding from single-word recognition paradigms that semantic priming affects only μ. 相似文献
662.
Researchers generally agree that Subjective Wellbeing (SWB) comprises both cognitive and affective components. However, the
proportioning of their contributions, and the relationship between these constructs and personality, remain equivocal. This
study investigated the relationship between these constructs, representing affect by Homeostatically Protected Mood (HPMood).
Using a sample of 205 Victorian high-school students aged between 13 and 20 years, structural equation modeling determined
that an HPMood-driven model of SWB was better fitting than either a personality-driven model of SWB or a cognition-driven
model of SWB, explaining 80% of variance. These results support HPMood as the major component of SWB. They also reinforce
the proposition that HPMood may be the driving force behind individual SWB set-points and the variable that SWB homeostasis
seeks to defend. 相似文献
663.
Despite much commentary on "psychiatric skepticism", there remains a dearth of appropriate psychometric scales for the measurement of this concept. To overcome this limitation, the present study examined the psychometric properties and correlates of the recently developed Psychiatric Scepticism Scale (PSS). A total of 564 individuals from the community in London, England, completed the PSS along with measures of anti-scientific attitudes, attitudes to authority, knowledge of mental health disorders, and demographics. Results showed that the PSS has a one-dimensional factor structure with very good internal consistency. In addition, it showed adequate convergent (anti-scientific attitudes, knowledge of mental health disorders) and construct validity (attitudes to authority, religiosity). Results also showed that there were small but significant differences in psychiatric skepticism by ethnicity and education, but not sex or previous diagnosis of mental health disorder. These results confirm that the PSS has adequate psychometric properties for the measurement of psychiatric skepticism. 相似文献
664.
Phillip L. Ackerman Tomas Chamorro‐Premuzic Adrian Furnham 《The British journal of educational psychology》2011,81(1):27-40
Background . Although recent research has provided evidence for the predictive validity of personality traits in academic settings, the path to an improved understanding of the nature of personality influences on academic achievement involves a reconceptualization of both criterion and predictor construct spaces. Aims . For the criterion space, one needs to consider student behaviours beyond grades and level of educational attainment, and include what the student does among other things outside of the classroom. For the predictor space, it is possible to bring some order to the myriad personality constructs that have been developed over the last century, by focusing on common variance among personality and other non‐ability traits. Methods . We review these conceptual issues and several empirical studies. Conclusions . We demonstrate the possible increments in understanding non‐ability determinants of academic achievement that may be obtained by focusing on areas where there is a theoretical convergence between predictor and criterion spaces. 相似文献
665.
Although P3 event-related potential abnormalities have been found in psychopathic individuals, it is unknown whether successful (uncaught) psychopaths and unsuccessful (caught) psychopaths show similar deficits. In this study, P3 amplitude and latency were assessed from a community sample of 121 male adults using an auditory three-stimulus oddball task. Psychopathy was assessed using the Psychopathy Checklist-Revised (Hare, 2003) while childhood physical maltreatment was assessed using the Conflict Tactic Scale (Straus, 1979). Results revealed that compared to normal controls, unsuccessful psychopaths showed reduced parietal P3 amplitudes to target stimuli and reported experienced more physical abuse in childhood. In contrast, successful psychopaths exhibited larger parietal P3 amplitude and shorter frontal P3 latency to irrelevant nontarget stimuli than unsuccessful psychopaths. This is the first report of electrophysiological processing differences between successful and unsuccessful psychopaths, possibly indicating neurocognitive and psychosocial distinctions between these two subtypes of psychopathy. 相似文献
666.
Vander Stoep A Adrian M McCauley E Crowell SE Stone A Flynn C 《Suicide & life-threatening behavior》2011,41(3):316-329
This study investigates the early manifestation of co-occurring depression and conduct problems as a predictor of heightened risk for later suicidal ideation and behavior in a community sample of 521 adolescents. Self-reported symptoms of depression and conduct problems were evaluated in early 6th grade. Suicidal thoughts and behaviors were tracked through multiple assessments carried out over the middle school years. Compared to adolescents with depression symptoms only, conduct problem symptoms only, or low psychopathology, those with co-occurring depression and conduct problem symptoms had the highest risk for subsequent suicidal ideation, recurrent suicidal behaviors, and suicide attempts. 相似文献
667.
Marianne Schmid Mast Adrian Bangerter Céline Bulliard Gaëlle Aerni 《International Journal of Selection & Assessment》2011,19(2):198-208
The ability of recruiters and laypersons (students) to detect applicant personality traits and deception was studied. Participants viewed mock videotapes of target applicants answering interview questions. They subsequently judged the applicants' personality on the Big Five dimensions. Then, they viewed another videotape with other applicants presenting themselves either truthfully or not, and subsequently guessed which version was truthful. Personality judgments were compared with targets' self‐assessments and peer assessments to create an accuracy score. Both recruiters and students accurately detected applicants' global personality profile. Recruiters were better at this than students. However, students were better at judging the specific traits of openness, extraversion, and conscientiousness, whereas recruiters only accurately detected openness. Recruiters detected lies above chance whereas students did not. 相似文献
668.
Zellin M Conci M von Mühlenen A Müller HJ 《Attention, perception & psychophysics》2011,73(7):2065-2076
Visual search for a target object is facilitated when the object is repeatedly presented within an invariant context of surrounding items ("contextual cueing"; Chun & Jiang, Cognitive Psychology, 36, 28-71, 1998). The present study investigated whether such invariant contexts can cue more than one target location. In a series of three experiments, we showed that contextual cueing is significantly reduced when invariant contexts are paired with two rather than one possible target location, whereas no contextual cueing occurs with three distinct target locations. Closer data inspection revealed that one "dominant" target always exhibited substantially more contextual cueing than did the other, "minor" target(s), which caused negative contextual-cueing effects. However, minor targets could benefit from the invariant context when they were spatially close to the dominant target. In sum, our experiments suggest that contextual cueing can guide visual attention to a spatially limited region of the display, only enhancing the detection of targets presented inside that region. 相似文献
669.
This study explored a longitudinal data set of nearly 5000 adults examining the effects of childhood cognitive ability (measured at age 11), parental social class (measured at birth), and personality on current occupational prestige (all measured at age 50), taking account the effects of education and the previous occupational levels (both measured at age 33). Participants' levels of occupational attainment significantly went up from age 33 to age 50. Correlational analysis showed childhood cognitive ability, parental social class, education and occupation, and personality traits (openness, conscientiousness, extraversion, emotional stability) were all significantly associated with current occupational prestige. The strongest correlates of current occupational levels were educational qualifications, followed by childhood cognitive ability, parental social class, and personality traits. Structural equation modelling showed that for the change of occupation over 17 years, the strongest predictor was education, followed by childhood intelligence. Personality traits (extraversion, conscientiousness, and openness) had modest but significant influence in the upgrading of occupational attainment over the period of time, and parental social status predicted occupational change mediated through education and initial occupational levels. Education and childhood intelligence are more powerful predictors of current occupational prestige than personality factors or family social background. The implications for policy making and equal opportunities for education are discussed. 相似文献
670.
In three experimental tasks Stephen and Mirman (2010) measured gaze steps, the distance in pixels between gaze positions on successive samples from an eyetracker. They argued that the distribution of gaze steps is best fit by the lognormal distribution, and based on this analysis they concluded that interactive cognitive processes underlie eye movement control in these tasks. The present comment argues that the gaze step distribution is predictable based on the fact that the eyes alternate between a fixation state in which gaze is steady and a saccade state in which gaze position changes rapidly. By fitting a simple mixture model to Stephen and Mirman's gaze step data we reveal a fixation distribution and a saccade distribution. This mixture model captures the shape of the gaze step distribution in detail, unlike the lognormal model, and provides a better quantitative fit to the data. We conclude that the gaze step distribution does not directly suggest processing interaction, and we emphasize some important limits on the utility of fitting theoretical distributions to data. 相似文献