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991.
Two experiments investigated the nature and etiology of the reduced activity in the presence of shock produced by prior exposure to inescapable shock. Previous experiments have demonstrated this deficit in the presence of gridshock. However, gridshock hurts less if movement across the grids is reduced. It is thus unclear whether the inescapable-shock-produced deficit represents a facilitation of learning to reduce movement across the grids in order to alleviate pain or is an “unconditioned” reduction in movement in response to shock. The first experiment tested these possibilities by examining the effects of inescapable shock on subsequent movement during shock delivered via fixed tail electrodes to freely moving subjects. Inescapably shocked subjects still moved less in response to shock than did escapably shocked and restrained control subjects. Experiment 2 examined the possibility that this deficit occurs because unconditioned movement in response to shock during pretreatment diminishes after a few seconds, the reduction then being adventitiously reinforced by shortly ensuing shock termination. Activity during inescapable shock was closely monitored by ultrasonic motion detection. Although activity did decrease across trial blocks, the required within-trial patterns did not occur. Shock-elicited activity did not diminish after a few seconds of shock, but remained unchanged across the 5-sec shock presentations. 相似文献
992.
This study examined the expression of shame and pride in maltreated and nonmaltreated preschool children. 84 4–5-year-old children and their mothers participated in the study: 42 had a history of child maltreatment and 42 served as matched controls. Children were presented with easy and difficult tasks and their emotional responses of shame and pride were observed. No shame was shown when subjects succeeded on the tasks and no pride was shown when they failed. Maltreating mothers offered more negative feedback, particularly to their daughters, than nonmaltreating mothers. Maltreated girls showed more shame when they failed and less pride when they succeeded than nonmaltreated girls. The relation between differential socialization practices and the self-conscious emotions is explored as it relates to observed gender differences in emotionality and self-concept. 相似文献
993.
This study evaluates latent differential equation models on binary and ordinal data. Binary and ordinal data are widely used in psychology research and many statistical models have been developed, such as the probit model and the logit model. We combine the latent differential equation model with the probit model through a threshold approach, and then compare the threshold model with a naive model, which blindly treats binary and ordinal data as continuous. Simulation results suggest that the naive model leads to bias on binary data and on ordinal data with fewer than 5 levels, whereas the threshold model is unbiased and efficient for binary and ordinal data. Two example analyses on empirical binary data and ordinal data show that the threshold model also has better external validity. The R code for the threshold model is provided. 相似文献
994.
995.
Perceived Academic Control and Failure in College students: A Three-Year Study of Scholastic Attainment 总被引:6,自引:0,他引:6
Raymond?P.?PerryEmail author Steven?Hladkyj Reinhard?H.?Pekrun Rodney?A.?Clifton Judith?G.?Chipperfield 《Research in higher education》2005,46(5):535-569
Although self-initiative is recognized as instrumental to success in college, some students do not take responsibility for their academic development and fail to make the transition from high school to college. This problem is exacerbated when bright, highly skilled students drop courses or quit college entirely. Research into this paradox of failure reveals that, although high academic control benefits learning-related emotions, cognitions, motivation, and performance, it is not sufficient to ensure optimal success. Along with academic control other factors are implicated in the paradox. In this 3-year longitudinal study, four groups of students who differed in academic control (low, high) and failure preoccupation (low, high) were tracked using broad indices of scholastic development. Overall, students higher in academic control obtained better 3-year GPAs and withdrew from fewer courses. More notable, however, high-academic-control students who were concerned about failure had better 3-year GPAs and also were less likely to withdraw from courses or quit university than the other three groups. Paradoxically, high-academic-control students who were less concerned about failure did poorly. In qualifying the assumption that more perceived control is always better, these results are interpreted following social cognition theory. 相似文献
996.
We examined the ontogeny of the infant rhesus monkey's defensive behaviors and the ability to modulate them in response to specific environmental cues. Rhesus infants in 4 age groups (N = 8 per group) were briefly separated from their mothers and tested under 3 conditions: alone, in the presence of a human who averted his gaze, and in the presence of a human staring at them. Infants as young as 0 to 2 weeks displayed defensive behaviors but did not selectively respond to the human's presence or direction of gaze. By 9 to 12 weeks of age, infants modulated their responses in relation to the parameters of the threat. At this age, infant rhesus monkeys undergo cognitive and emotional changes associated with brain development similar to those in human infants 7 to 12 months old. This also is the time when human infants engage in complex emotional and behavioral responses to threatening situations. Understanding the development and expression of defensive behaviors in infant monkeys should be applicable to similar issues in emotional development of human infants. 相似文献
997.
Steven Jones 《Journal of Further & Higher Education》2018,42(7):908-921
Drawing on thematic analysis of one-to-one interviews with 85 undergraduate students, this paper offers initial, exploratory analysis of whether known outcome differentials may be partly attributable to students’ transition into university. The study is located in the English higher education sector, where fee increases have been accompanied by wider availability of metrics and outcome differentials have become a particular focus of attention. Specifically, this paper examines (in)congruence between students’ expectations of higher education and their experience while at university, tracking how recalled pre-arrival expectations correlate with socio-economic status and school type. In the case of students from ‘widening participation’ (WP) backgrounds, the effect of attendance on an intervention (access) programme is also considered. Findings point to a complex web of factors influencing the undergraduate experience of students within the same institution. For WP students, the widest gaps arise in relation to pedagogy, as the culture and curricula of higher education are initially found inconsistent with expectations. Intervention programmes make a small positive difference, primarily because social and academic confidence is enhanced. For students educated at independent schools, the widest gaps arise in relation to assessment, for which university-level support and guidance are felt to be less personalised than expected. On a structural level, findings question the reliability of output metrics as proxies for teaching quality given the extent to which they are predicted by students’ backgrounds and by the nature of their individual transition into higher education. 相似文献
998.
Steven J. Haggbloom LaNeel Lovelace Vickie R. Brewer Shelia M. Levins James D. Owens 《Learning & behavior》1990,18(3):315-322
Event-generated memory refers to the memory of a reinforcement (R) or nonreinforcement (N) event from an immediately preceding trial;signal-generated memory refers to the memory of a temporally remote R or N, retrieval of which is generated by presentation of a signal with which the memory is associated (Haggbloom, 1988). In each of three experiments, Group Signal-R received runway discrimination training in Phase 1 to establish a stimulus as a signal for R, and partial reinforcement training in Phase 2. An extinction test measured learning about the memory of nonreward (SN)—learning that occurs when SN is retrieved on R trials that follow N trials. In Group Signal-H, those R trials were accompanied by the signal for R, a treatment we hypothesized would generate retrieval of the memory of reinforcement (SR) so that signal-generated SR would replace event-generated SN as the operative memory, thereby eliminating the increased resistance to extinction normally produced by PRF training. In each experiment, Group Signal-R was less resistant to extinction than was a control group conditioned to respond to-event-generated SN. Extinction was as rapid in Group Signal-R as it was in a consistent reinforcement control group (Experiment 1) and in a group given intertrial reinforcements to interfere with learning about SN (Experiment 3). Experiment 2 tested two alternative interpretations of the failure to learn about SN in Group Signal-R. Those alternatives were found to be less viable than the hypothesis that the signal for R actively recruited retrieval of a competing memory. 相似文献
999.
Work experience placements are mandatory in the UK for all young people aged 16–18 in education, and their employability effects and associated wage premia are well noted in the literature. Through Bourdieu’s lens, this article analyses and conceptualises a unique data set of reflective testimonies submitted in response to a YouGov survey of over one thousand young people. Different capitals are detected, their distributions are observed, and correlations with key variables such as social background and school type are reported. Emerging through young people’s perceptions of employer engagement is a complex web of human, social and cultural capital accumulation. Overlaps are frequent, with newly acquired forms of capital often activating others. We argue that because of the cyclical nature of employer engagement gains, benefits accumulate exponentially for some young people while leaving others increasingly detached from the capitals that are most important for labour market success. 相似文献
1000.
David R. White Steven M. Crooks Jerry K. Melton 《Journal of Personnel Evaluation in Education》2002,16(1):45-61
This article describes and analyzes the design dynamics of a school principal self-assessment process, provided through a three-day, state-approved Leadership Assessment Academy, which allows principals to experience and reflect on important self-assessment data that leads to a personal professional growth plan. Designing and implementing such an academy is complex and requires careful consideration of all aspects of the principalship and the requirements set forth by the state regarding principal assessment and professional growth plans. A primary challenge of this leadership academy is in providing principals with a self-assessment experience that is meaningful and accurate using carefully designed assessment techniques and technology, and that can serve as a viable alternative to the traditional paper and pencil assessment tools that require very little personal involvement in defining and producing the principal's professional growth plan. 相似文献