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This prospective study examined the predictive validity of the Structured Assessment of Violence Risk in Youth (SAVRY) and the Psychopathy Checklist: Youth Version (PCL: YV) in 99 male adolescents who were assessed in custody and followed up 12 months post release. Outcome data on recidivism were based on official Home Office records. The base rates for violent and general recidivism, respectively, were 38.4% and 70.7%. The predictive validity of the SAVRY Risk Total and the SAVRY Risk Rating was moderate for both violent and general recidivism, but both showed incremental validity in predicting outcomes compared with the PCL: YV. Data are discussed in relation to the limited published international literature. 相似文献
53.
Recent functional imaging studies link reward-related activation of the midbrain substantia nigra-ventral tegmental area (SN/VTA), the site of origin of ascending dopaminergic projections, with improved long-term episodic memory. Here, we investigated in two behavioral experiments how (1) the contingency between item properties and reward, (2) the magnitude of reward, (3) the uncertainty of outcomes, and (4) the contextual availability of reward affect long-term memory. We show that episodic memory is enhanced only when rewards are specifically predicted by the semantic identity of the stimuli and changes nonlinearly with increasing reward magnitude. These effects are specific to reward and do not occur in relation to outcome uncertainty alone. These behavioral specifications are relevant for the functional interpretation of how reward-related activation of the SN/VTA, and more generally dopaminergic neuromodulation, contribute to long-term memory. 相似文献
54.
Low-frequency (LF) words produce higher hit rates and lower false alarm rates than high-frequency (HF) words. This word frequency
mirror pattern has been interpreted within dual-process models of recognition, which assume the contributions of a slower
recollective process and a relatively fast-acting familiarity process. In the present experiments, recollection and familiarity
were placed in opposition using Jacoby, L. L., Journal of Memory and Language, 30, 513–541 (1991), two-list exclusion paradigm with HF and LF words. Exclusion errors to LF words exceeded those to HF words at fast deadlines,
whereas the reverse occurred at slow deadlines. In Experiments 2 and 3, false alarms to HF nonpresented lures were higher than to LF nonpresented lures, indicating the use of baseline familiarity
for totally new items. Combined, these results indicate that in addition to baseline familiarity and recollection, a third
process involving the assessment of a relative change in familiarity is involved in recognition performance. Both relative
changes in familiarity and recollection processes have distinct time courses and are engaged when there is diagnostic list
information available, whereas baseline familiarity is used when there is no diagnostic information available (e.g., for nonpresented
lure items). 相似文献
55.
56.
Hilde M. Huizenga Ingmar Visser Conor V. Dolan 《The British journal of mathematical and statistical psychology》2011,64(1):1-19
Random effects meta‐regression is a technique to synthesize results of multiple studies. It allows for a test of an overall effect, as well as for tests of effects of study characteristics, that is, (discrete or continuous) moderator effects. We describe various procedures to test moderator effects: the z, t, likelihood ratio (LR), Bartlett‐corrected LR (BcLR), and resampling tests. We compare the Type I error of these tests, and conclude that the common z test, and to a lesser extent the LR test, do not perform well since they may yield Type I error rates appreciably larger than the chosen alpha. The error rate of the resampling test is accurate, closely followed by the BcLR test. The error rate of the t test is less accurate but arguably tolerable. With respect to statistical power, the BcLR and t tests slightly outperform the resampling test. Therefore, our recommendation is to use either the resampling or the BcLR test. If these statistics are unavailable, then the t test should be used since it is certainly superior to the z test. 相似文献
57.
Priscilla G. Layman Dennis R. Myers Sara Dolan James W. Ellor Sandra B. Morissette 《Military psychology》2019,31(3):178-186
Although research on military populations has found that measures of personal well-being are correlated with both intimate partner cohesion and military unit cohesion, it is not clear how these correlations should be interpreted. Based on Relationship Regulation Theory, it was expected that each type of interpersonal relationship would have independent effects, that each would uniquely predict outcomes, and that effects would remain significant after controlling for person-level traits and experiences, such as trait resilience and exposure to combat. A sample of 273 active-duty military personnel completed self-report measures of cohesion in two types of interpersonal relationships (intimate relationships and military unit relationships), two control variables (trait resilience and combat exposure), and three outcome variables (well-being, negative emotionality, and trauma-related stress). Results indicated that cohesion in the two types of relationships were minimally related to each other, but both correlated with outcome variables. Effects for each type of interpersonal relationship remained significant after controlling for the other type and controlling for trait resilience and combat exposure. The results suggest that the effects of interpersonal cohesion are best understood as reflecting experiences in specific types of relationships rather than general characteristics of people in those relationships. 相似文献
58.
When adults are asked to report and date personal memories of their pasts, they show childhood amnesia, that is, diminished recall of experiences over the childhood years. This way of demonstrating the phenomenon was supplemented in the present study with a more direct approach: Participants reported events of early childhood that they knew they had experienced (because of family stories, photographs, etc.) but did not actually remember. The resulting cumulative relative frequency distributions produced by the two methods were substantially different, with the median age of remembered events being 6.07 years and of known events, 3.20 years. We suggest that the mean of these two ages, 4.64 years, gives a good indication of when childhood amnesia is eclipsed by personal memories in adults' recall of their personal pasts. 相似文献
59.
Because states are abstract entities, they often require embodiment for mass publics and elites to understand them. This embodiment often occurs as personification, where the state is associated with the most salient figure in the political system, but embodiment can also occur through political institutions and social groups. Surprisingly, there is virtually no systematic empirical work on the political and psychological consequences of state personification, or other forms of embodiment. In this experiment, we investigate how various ways of embodying the state influence attitude formation processes. Drawing on the on-line/memory-based processing and entitativity literatures, we hypothesize that personification of the state should facilitate on-line processing and stronger attitudes, whereas embodying the state as a parliamentary institution should produce weaker attitudes that are formed in a memory-based fashion. The results support these hypotheses. Embodiment as a social group produced inconsistent results. This study provides the first systematic evidence that the widespread practice of personification of the state has robust and potentially far-reaching attitudinal consequences that have meaningful implications for strategic interaction, perception and learning, and attitude change in the international realm. 相似文献
60.
ABSTRACT— The debate surrounding the use of subjective measures of well-being for policy purposes has intensified in recent years. Many social scientists are arguing that the time is right for policymakers to extend their traditional focus on material well-being and economic development to include the impact policies have on how people think and feel about their lives. However, policymakers may have many legitimate goals beyond making people happy. In this article, we begin by presenting three archetypal accounts of well-being that policymakers could use to guide policy (mental-state, objective-list, and desire-fulfillment accounts) and discussing some of the normative and methodological limitations of each. We discuss how a subjective (mental-state) approach could be used to aid the achievement of objective-list and desire-fulfillment policy goals. We then consider ways in which a subjective approach may benefit policymakers in its own right, such as by aiding the valuation of hard-to-quantify costs and benefits, providing a standard unit of measurement for comparisons of well-being across domains, and helping to set policy defaults. We conclude with a discussion of some of the remaining measurement issues and general policy implications. 相似文献