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排序方式: 共有311条查询结果,搜索用时 15 毫秒
111.
Schoeneman KA Scalora MJ Darrow CD McLawsen JE Chang GH Zimmerman WJ 《Behavioral sciences & the law》2011,29(2):284-301
Those charged with assessing and managing threatening communications must utilize risk factors that are behavioral, operational, and reasonably attainable during investigations. This project examined 326 written correspondence cases of an inappropriate, disruptive, or threatening nature that targeted political officials, with the specific goal of identifying written content indicators of problematic approach behavior. Results revealed that subjects who engaged in problematic approach activity toward their targets had more criminal history, past threat assessment activity, familiarity with firearms, past substance use, and indicators of serious mental illness. Approachers were more likely to engage in multiple contact methods, target dispersion, more overall contacts, and prior contact with their target. Numerous content themes were associated with future problematic approach, including longer handwritten correspondence, referencing specific events, making demands, mentioning stressors, focus on personal themes, feeling their rights were violated, and expressing an intention to approach. Harassing, insulting, and threatening language was not related to approach behavior. The implications of these findings are wide-ranging for the practice of threat assessment. 相似文献
112.
Derek Chadee Grace Sooknanan Diana Williams 《Journal of applied social psychology》2017,47(12):696-702
The current study proposed general health as a predictor of fear of crime with risk perception and general fear as mediating factors. Data were collected from a randomly selected household sample using face to face interviews (n = 300) and utilizing the following scales: general health, general fear, fear of crime, and perceived risk of victimization. Findings confirm hypothesis that persons with low general health will experience higher fear of crime, a relationship mediated by both general fear and perceived risk of victimization. A significant gender difference was observed with general fear significantly mediating relationship for females, and risk of perceived victimization mediating for males. Implications of findings are discussed in the context of previous and future research. 相似文献
113.
Eight pigeons responded in a concurrent-chains procedure in which terminal-link schedules changed pseudorandomly across sessions. Pairs of terminal-link delays either summed to 15 s or to 45 s. Across sessions, the location of the shorter terminal link changed according to a pseudorandom binary sequence. On some terminal links, food was withheld to obtain start and stop times, measures of temporal control. Log initial-link response ratios stabilized within the first half of each session. Log response ratio was a monotonically-increasing but nonlinear function of programmed log terminal-link immediacy ratio. There was an effect of absolute terminal-link duration on log response ratio: For most subjects, preference for the relatively shorter terminal-link delay was stronger when absolute delays were long than when absolute delays were short. Polynomial regressions and model comparison showed that differences in degree of nonlinearity, not in sensitivity to log immediacy ratio, produced this effect. Temporal control of stop times was timescale invariant with scalar variability, but temporal control of start times was not consistent across subjects or terminal-link durations. 相似文献
114.
115.
Tara G. Mehta Davielle Lakind Dana Rusch Angela L. Walden Grace Cua Marc S. Atkins 《American journal of community psychology》2019,63(3-4):444-458
This paper describes the process of a community–academic partnership to navigate implementation challenges for a school‐based service model led by paraprofessionals to promote positive parenting in high poverty urban communities. We describe the process by which we (a) identified implementation challenges, (b) sustained a university–community collaboration to redesign the paraprofessional service model, and (c) assessed the feasibility of the new model involving four social service agencies in 16 schools with over 600 families. The structure and process of the collaboration and refinement are described with attention to who was best positioned to engage in the collaboration and how the partnership worked to balance scientific rigor with responsiveness to paraprofessional workforce strengths. Feasibility data indicated that the revised model was successfully implemented by paraprofessional staff; 92.2% of possible staff monthly reports were completed and discussion of key goals was incorporated into 94.2% of interactions. Continual monitoring provided critical feedback from stakeholders as we drew on and interpreted these various sources of information to build and refine the service model. We suggest that these processes are critical steps to bridge the research‐to‐practice gap, by promoting practices that are aligned with the needs of children and families, and the staff who serve them. 相似文献
116.
117.
Ta WM Pitts RC Hughes CE McLean AP Grace RC 《Journal of the experimental analysis of behavior》2008,89(1):71-91
The purpose of this study was to examine effects of d-amphetamine on choice controlled by reinforcement delay. Eight pigeons responded under a concurrent-chains procedure in which one terminal-link schedule was always fixed-interval 8 s, and the other terminal-link schedule changed from session to session between fixed-interval 4 s and fixed-interval 16 s according to a 31-step pseudorandom binary sequence. After sufficient exposure to these contingencies (at least once through the pseudorandom binary sequence), the pigeons acquired a preference for the shorter reinforcement delay within each session. Estimates of the sensitivity to reinforcement immediacy were similar to those obtained in previous studies. For all pigeons, at least one dose of d-amphetamine attenuated preference and, hence, decreased estimates of sensitivity to reinforcement immediacy; in most cases, this effect occurred without a change in overall response rates. In many cases, the reduced sensitivity to reinforcement delay produced by d-amphetamine resulted primarily from a decrease in the asymptotic level of preference achieved within the session; in some cases, d-amphetamine produced complete indifference. These findings suggest that a reduction in the sensitivity to reinforcement delay may be an important behavioral mechanism of the effects of psychomotor stimulants. 相似文献
118.
DeAnna L. Mori Jennifer F. Lambert Barbara L. Niles Jay D. Orlander Maureen Grace Joseph S. LoCastro 《Journal of clinical psychology in medical settings》2003,10(3):187-192
Despite the prevalence of psychiatric disorders in medical settings, mental health problems often go undetected and patients do not receive appropriate treatment. The main goal of this study is to provide additional information about the Beck Anxiety Inventory – Primary Care (BAI–PC), a brief instrument that screens for patients with anxiety. This study provides information on the performance of the BAI–PC as a screening instrument for depression and PTSD in addition to its original purpose as a screening instrument for anxiety. This efficient tool can identify patients who can benefit from effective psychological treatments and facilitate referrals to psychologists working in medical settings. 相似文献
119.
Children’s academic self-efficacy is one of the strongest predictors of achievement (Wigfield and Eccles, Contemporary Educational
Psychology 25(1): 68–81, 2000). The present research examined mathematics self-efficacy and the relationship of racial context
from the perspective of two competing bodies of research. Stereotype threat theory would predict that, under conditions where
negative stereotypes are salient, self-efficacy would decrease. So, Black/African American students in primarily White classrooms
would be predicted to report lower self-efficacy. However, other research suggests that Black/African American students demonstrate
fortitude even under disadvantage (e.g., Graham, Review of Educational Research, 64(1): 55–117, 1994). We examined the mathematics
self-efficacy of 170 fifth-grade students. In contrast to stereotype threat theory, results suggested that Black/African American
students’ self-efficacy remained stable regardless of the racial breakdown of the class. However, White students demonstrated
elevated self-efficacy when in predominantly Black/African American classrooms. These results could not be explained by differences
in classroom environments. Results are discussed in terms of resilience, ethnic identity and White identity. 相似文献
120.
Grace RC 《Journal of the experimental analysis of behavior》1994,61(1):113-129
An extension of the generalized matching law incorporating context effects on terminal-link sensitivity is proposed as a quantitative model of behavior under concurrent chains. The contextual choice model makes many of the same qualitative predictions as the delay-reduction hypothesis, and assumes that the crucial contextual variable in concurrent chains is the ratio of average times spent, per reinforcement, in the terminal and initial links; this ratio controls differential effectiveness of terminal-link stimuli as conditioned reinforcers. Ninety-two concurrent-chains data sets from 19 published studies were fitted to the model. Averaged across all studies, the model accounted for 90% of the variance in pigeons' relative initial-link responding. The model therefore demonstrates that a matching law analysis of concurrent chains—the assumption that relative initial-link responding equals relative terminal-link value—remains quantitatively viable. Because the model reduces to the generalized matching law when terminal-link duration is zero, it provides a quantitative integration of concurrent schedules and concurrent chains. 相似文献