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Independently drawn random samples of 20 dean's list and 20 academic probation engineering sophomores were the subjects in this investigation of student academic status in relation to personal values and aptitude variables. Dean's list students differed significantly (.05 level) from academic probation students on variables such as need for achievement, direction of aspirations, peer group values, independence in planning, persistence, self-control, and high school record. No statistically significant differences were found on variables such as socio-economic status, influence of the home, self-insight or scholastic aptitude. It was concluded that the successful engineering student differs from the relatively less successful engineering student in certain measurable characteristics. These results elucidate the efficacy of the utilization of nonintellective variables in such differentiation.  相似文献   
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In this paper the validity of the Operationalized Psychodynamic Diagnosis System is discussed. The discussion for each OPD axis is guided by the common scientific criteria like content-, criterion-, and construct validity. Reliability studies on OPD are summarized as an introduction to the validity issue. The studies show good to satisfying scores for interrater agreement for the research context. The results derived from the validity studies support the validity of the OPD system. There are also hints for improvements of multiple categories or items within each axis. For clinical routine OPD should become even more practice oriented. Therefore the OPD task force intends to construct a shorter version which will base on the results discussed in this article.  相似文献   
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Team decision-making can go wrong when individuals fear to voice suggestions or concerns to higher status team members. We investigate how after-event reviews (AERs) can be used to promote voice behaviour and hierarchy-attenuating beliefs in multi-professional action teams. We hypothesized that (1) lower status team members will speak up more following an assertiveness-specific AER (ASAER) as compared to a teamwork-generic AER (TGAER) and (2) that an ASAER leads to stronger endorsement of hierarchy-attenuating beliefs than the TGAER. To test these hypotheses, we implemented simulations of medical emergencies with 20 healthcare teams consisting of low (i.e., nurses) and high-status (i.e., physicians) professions. After participating in one of the two AERs, teams managed a simulation in which a higher status confederate engaged in potentially harmful actions. Behavioural coding of the videotaped simulations and assessment of team members’ hierarchy beliefs supported both hypotheses: nurses spoke up more following the ASAER than following the TGAER and both professional groups reported significantly higher levels of hierarchy-attenuating beliefs following the ASAER as compared to the TGAER. We discuss how AERs can affect upward voice and increase awareness for the potential downsides of status hierarchies in multi-professional teams.  相似文献   
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C G Grande 《Adolescence》1988,23(89):209-219
Support for the relationship between academic performance and delinquency is offered. Additionally a review is provided describing the learning disabled male adolescent as the target population for experimental research.  相似文献   
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We investigated the effects of exposure to microgravity on the baseline autonomic balance in cardiovascular regulation using spectral analysis of cardiovascular variables measured during supine rest. Heart rate, arterial pressure, radial flow, thoracic fluid impedance and central venous pressure were recorded from nine volunteers before and after simulated microgravity, produced by 20 hours of 6° head down bedrest plus furosemide. Spectral powers increased after simulated microgravity in the low frequency region (centered at about 0.03 Hz) in arterial pressure, heart rate and radial flow, and decreased in the respiratory frequency region (centered at about 0.25 Hz) in heart rate. Reduced heart rate power in the respiratory frequency region indicates reduced parasympathetic influence on the heart. A concurrent increase in the low frequency power in arterial pressure, heart rate, and radial flow indicates increased sympathetic influence. These results suggest that the baseline autonomic balance in cardiovascular regulation is shifted towards increased sympathetic and decreased parasympathetic influence after exposure to short-term simulated microgravity.  相似文献   
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