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481.
The perception of occupations plays a key role in many vocational behaviors and in theories of vocational development. This study hypothesizes that occupational perceptions are more specific for older age groups than for younger age groups.This hypothesis was tested by using latent root analysis and minimum residual factor analysis to analyze the intercorrelations among six Vocational Preference Inventory (VPI) scales for five large and diverse samples-elementary school students, rural high school seniors, college freshmen, employed salesmen, and employed women.Both analyses supported the hypothesis. The results are discussed in relation to those of Cureton (1970) and the implication is drawn that occupational perceptions may be used to estimate a person's level of vocational development. 相似文献
482.
In 3 experiments the interdependencies between timing and force production in unimanual paced and self-paced rhythmic tapping tasks were examined as participants (N = 6 in each experiment) tapped (a) to 1 of 3 target periods (333 ms, 500 ms, and 1,000 ms), while they simultaneously produced a constant peak force (PF) over a 50-s trial; (b) to produce 1 of 3 target forces (5, 10, and 15 N) at their preferred frequency, while keeping their rhythm as invariant as possible; and (c) to all combinations of target force and period. The results showed that (a) magnitudes of force and period were largely independent; (b) variability in timing increased proportionally with tapping period, and the variability in force increased with peak force; (c) force variability decreased at faster tapping rates; and (d) timing variability decreased with increasing force levels. (e) Analysis of tap-to-tap variability revealed adjustments over sequences of taps and an acceleration in the tapping rate in unpaced conditions. The interdependencies of force and time are discussed with respect to the challenges they provide for an oscillator-based account. 相似文献
483.
Dean Bartlett 《European Journal of Work and Organizational Psychology》2016,25(5):615-630
This study explores the extent to which work and organizational (W&O) psychology practitioners use evidence, how they apply it to the everyday contexts in which they work, and the types of barriers they encounter in so doing. It adopts a mixed methods approach involving the administration of a survey to a UK sample (N = 163) of W&O psychologists and a series of semi-structured interviews (N = 25) exploring in greater depth how evidence is applied in practice. Findings reveal that practitioners consult a wide range of different types of evidence which they employ at various stages of engagement with client organizations and that this evidence is pressed into service in the pursuit of solutions which are both acceptable from the client perspective and consistent with the scientific standards underpinning professional knowledge and expertise in W&O psychology. Barriers to evidence-use were mainly practical in nature, concerning issues around managing the client–consultant relationship and the particularities of implementation context, both of which were shown to influence evidence utilization. The study contributes to current debate on the extent to which W&O psychologists adopt an evidence-based approach and provides a valuable and much called-for empirical insight into the enactment of the scientist–practitioner model in W&O psychology. 相似文献
484.
Maria Mukhtar Jennifer Dean Kathi Wilson Effat Ghassemi Dana Helene Wilson 《Journal of International Migration and Integration》2016,17(2):389-408
A large number of studies have focused on the neoliberal political and economic restructuring of non-profit immigrant settlement agencies (ISAs) through a policy analysis framework. While policy analysis is key to determining how resources are distributed among non-profit organizations, the challenges that ISAs encounter in planning and delivering services extend beyond limited financial resources in the sector. This research focuses on the system-level challenges ISAs encounter in planning and delivering services to newcomers in the suburban municipality of the Peel Region, Ontario, Canada. Twenty-one semi-structured interviews were conducted with frontline staff and executive directors in settlement organizations in Peel Region, Ontario, Canada, to understand the complex challenges they face within a highly federalized and neoliberal policy environment. The results indicate that although funding dollars are a large concern for ISAs, the conditions attached to funding, such as the types of programs settlement providers are able to offer, mandatory quotas, and restrictive eligibility criteria, hinder ISAs from being able to plan and implement programs that better respond to the needs of immigrants in Peel Region. The results also demonstrate that restrictive funding criteria contribute to competition with other ISAs for limited resources and challenge the structure and continuity of programs. Many of these challenges are exacerbated by the transportation system unique to suburban settings. 相似文献
485.
Lynn J. Groome Donna M. Mooney Scherri B. Holland Yolanda D. Smith Jana L. Atterbury Roscoe A. Dykman 《Attention, perception & psychophysics》2000,62(2):313-320
The purpose of this study was to determine whether temporal pattern and/or spectral complexity were important stimulus parameters for eliciting a cardiac orienting reflex (OR) in low-risk human fetuses. Each of 28 term fetuses was exposed to four sounds formed from the four different combinations of temporal pattern (pulsed, continuous) and spectral complexity (sine wave, IsJ). The fetal cardiac electrical signal was captured transabdominally at a rate of 1024 Hz, and fetal R-waves were extracted by using adaptive signal-processing techniques. We found that pulsed sounds elicited a significantly greater decrease in heart rate (HR) than did continuous sounds. However, the HR response was relatively unaffected by spectral complexity. For the pure tone and the phoneme used in this study, our results indicate that temporal characteristics were more effective at eliciting a cardiac OR in human fetuses than was spectral complexity. 相似文献
486.
Doughty SS Anderson CM Doughty AH Williams DC Saunders KJ 《Journal of the experimental analysis of behavior》2007,87(3):325-336
The purpose of this experiment was to establish discriminative control of responding by an antecedent stimulus using differential punishment because the results of past studies on this topic have been mixed. Three adults with mental retardation who exhibited stereotypy not maintained by social consequences (i.e., automatic reinforcement) participated. For each subject, stereotypy occurred frequently in the presence of a stimulus correlated with nonpunishment of stereotypy and rarely, if ever, in the presence of a stimulus correlated with punishment of stereotypy. Latency measures showed that the antecedent stimulus correlated with punishment served as the discriminative stimulus for the suppression of stereotypy. These results are important insofar as they show that discriminative control by an antecedent stimulus develops with punishment, and because it sometimes may be desirable to establish such control of socially inappropriate behavior. 相似文献
487.
Repeated checking has been repeatedly associated with memory distrust. We sought to extend previous research using a computer-based checking task by incorporating a group of 15 individuals with OCD, and examining the effect of increased perceived responsibility. Participants were asked to repeatedly check a virtual stovetop, with half the participants also placed under a condition of high-perceived responsibility. Our observations replicated previous research showing that the act of repeatedly checking leads to reductions in memory vividness, detail and confidence, without accompanying reductions in memory accuracy. Furthermore, while a sense of increased personal responsibility had little effect on a student control sample, it led to a significant further deterioration in memory confidence in individuals with OCD. These results suggest that in people with OCD, normal reductions in memory confidence over repeated trials are exacerbated and intensified by inflated responsibility perceptions. 相似文献
488.
Dean J. Machin 《Res Publica》2009,15(2):103-120
Democracy can be a means to independently valuable ends and/or it can be intrinsically (or non-instrumentally) valuable. One powerful non-instrumental defence of democracy is based on the idea that only it can
publicly justify political authority. I contend that this is an argument about the reasonable acceptability of political authority
and about the requirements of publicity and that satisfying these requirements has nothing to do with whether a society is
democratic or not. Democracy, then, plays no role in publicly justifying political authority. I also show that any non-instrumental
defence of democracy must make claims about what justice requires and make several further claims that require substantial
justification.
相似文献
Dean J. MachinEmail: |
489.
490.
Dean Mobbs Demis Hassabis Ben Seymour Jennifer L. Marchant Nikolaus Weiskopf Raymond J. Dolan Christopher D. Frith 《Psychological science》2009,20(8):955-962
ABSTRACT— A pernicious paradox in human motivation is the occasional reduced performance associated with tasks and situations that involve larger-than-average rewards. Three broad explanations that might account for such performance decrements are attentional competition (distraction theories), inhibition by conscious processes (explicit-monitoring theories), and excessive drive and arousal (overmotivation theories). Here, we report incentive-dependent performance decrements in humans in a reward-pursuit task; subjects were less successful in capturing a more valuable reward in a computerized maze. Concurrent functional magnetic resonance imaging revealed that increased activity in ventral midbrain, a brain area associated with incentive motivation and basic reward responding, correlated with both reduced number of captures and increased number of near-misses associated with imminent high rewards. These data cast light on the neurobiological basis of choking under pressure and are consistent with overmotivation accounts. 相似文献