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131.
The rabbit's nictitating membrane response was classically conditioned to a tone CS, followed by an electric shock US, at two randomly alternating CS-US interstimulus intervals (ISIs). Different groups were exposed to different proportions of 200- and 700-msec ISIs. The study revealed: (a) CR percentage was a direct function of the proportion of 200-msec ISIs; (b) trials to the first test-trial CR were an inverse function of the proportion of 200-msec ISIs; (c) CR onset latencies decreased over training; (d) CR peak latencies coincided with the temporal loci of the US; and (e) groups exposed to both ISIs acquired double-peaked CRs. Moreover, the amplitudes of nictitating membrane responses in the present experiment paralleled certain quantitative aspects of the free operant key peck response rates of pigeons trained under two mixed inter-reinforcement intervals. The results were discussed with respect to the micromolar response shaping and macromolecular CS-trace accounts of classical conditioning. 相似文献
132.
Jerard F. Kehoe 《International Journal of Selection & Assessment》2008,16(3):195-200
This paper offers an organizational perspective about the Pareto‐optimality of trade‐offs between selection quality and adverse impact reduction described by De Corte, Lievens and Sackett. Based on considerations of culture and human resource strategy, the need to understand the impact of any trade‐off, and a desire to compare this approach to alternatives, it is concluded that organizations may be strategically disinclined to implement such trade‐offs and, if interested, organizations would desire more information than is available from the accumulated research in this domain. In particular, validity differences between Pareto‐optimal composites are not likely to be good indicators of selection quality differences and the comparative effectiveness of alternative approaches is not clear. 相似文献
133.
Laura C. Hruska Kate J. Zelic Kelsey S. Dickson Jeffrey A. Ciesla 《International journal of psychology》2017,52(5):372-380
Co‐rumination has been related to both high quality friendship and depressive symptoms. However, little is known regarding the extent to which co‐rumination may be detrimental, its distinction from rumination and potential gender differences in co‐rumination. This study used a modified version of Rose's Co‐rumination Questionnaire (Rose, 2002) to examine the behaviour of daily co‐rumination with daily stress and negative affect among adolescents. Results demonstrated that co‐rumination did not have a main effect in predicting negative affect, but did evidence a significant interaction with life stress. Additionally, co‐rumination demonstrated incremental utility above that of rumination. Finally, gender differences were not supported. In conclusion, this investigation revealed that co‐rumination exacerbates the effects of life stress and is predictive of increased internalising symptoms. 相似文献
134.
Andrea Chronis-Tuscano Christine H. Wang Kelsey E. Woods Jennifer Strickland Mark A. Stein 《Journal of abnormal child psychology》2017,45(3):501-517
One fourth to one half of parents of children with attention-deficit/hyperactivity disorder (ADHD) have ADHD themselves, complicating delivery of evidence-based child behavioral and pharmacological treatments. In this article, we review the literature examining the relation between parent ADHD and outcomes following behavioral and pharmacological treatments for children with ADHD. We also review research that has incorporated treatment of parent ADHD (either alone or in combination with child treatment) with the goal of improving parenting and child outcomes. Finally, we offer recommendations for future research on the relation between parent ADHD and evidence-based treatment outcomes for their children, with the purpose of advancing the science and informing clinical care of these families. 相似文献
135.
Kelsey E. Medeiros Logan L. Watts Tyler J. Mulhearn Logan M. Steele Michael D. Mumford Shane Connelly 《Journal of Academic Ethics》2017,15(3):245-275
Requirements for business ethics education and organizational ethics trainings mark an important step in encouraging ethical behavior among business students and professionals. However, the lack of specificity in these guidelines as to how, what, and where business ethics should be taught has led to stark differences in approaches and content. The present effort uses meta-analytic procedures to examine the effectiveness of current approaches across organizational ethics trainings and business school courses. to provide practical suggestions for business ethics interventions and research. Thus, the primary questions driving this research are as follows: (1) what course characteristics moderate the effectiveness of ethics instruction?, and (2) have ethics education and training efforts improved? Findings suggest that professional, focused, and workshop-based training programs are especially effective for improving business ethics. However, results also reveal considerable problems with many of the criteria used to evaluate the effectiveness of business ethics interventions. Practical suggestions for course design and evaluation in business ethics efforts are discussed along with future research needs. 相似文献
136.
Kehoe EJ Weidemann G Dartnall S 《Journal of experimental psychology. Animal behavior processes》2004,30(4):259-270
The present experiments demonstrated that in the rabbit (Oryctolagus cuniculus) nictitacing-membrane (NM) preparation, exposure to the experimental apparatus produces profound declines in conditioned responding to a discrete conditioned stimulus (CS; Experiments 1, 2A, and 3). Moreover, this decremental effect is at most attenuated in only a minor way when the unconditioned stimulus (US) is presented during exposure to the apparatus (Experiment 2B). Controls for retention loss (Experiments 1 and 3) and for handling and placement in a different context (Experiment 3) did not produce significant declines in responding. These findings challenge theories of extinction that rely primarily on context-US associations but are more consistent with theories that assume context-CS-US associations. 相似文献
137.
Overexpectation: response loss during sustained stimulus compounding in the rabbit nictitating membrane preparation 下载免费PDF全文
Rabbits were given reinforced training of the nictitating membrane (NM) response using separate conditioned stimuli (CSs), which were a tone, light, and/or tactile vibration. Then, two CSs were compounded and given further pairings with the unconditioned stimulus (US). Evidence of both overexpectation and summation effects appeared. That is, responding to the individual CSs declined despite their continued pairing with the US on compound trials (overexpectation), and responding on the compound trials was greater than responding to the individual CSs (summation). The response loss appeared regardless of the testing regime, that is, whether the test presentations of the individual CSs were themselves reinforced (Experiment 2), not reinforced (Experiment 1), or deferred until the end of compound training (Experiment 2). The results are discussed with respect to the roles of excitatory versus inhibitory processes, elemental versus configural processes, and the possible roles of cerebellar and hippocampal pathways. 相似文献
138.
Weatherly JN Lang KK King BM Beste R Grove C 《Quarterly journal of experimental psychology (2006)》2006,59(4):654-666
Previous research reported that rats responding for 1% liquid-sucrose reinforcement when 32% sucrose reinforcement is upcoming will decrease their response rate (contrast) if licking is the dependent measure and increase their response rate (induction) if pressing a lever is the dependent measure. The present study investigated whether induction could be observed when licking served as the dependent measure and whether induction in lever pressing and contrast in licking behaviour could be concurrently observed. Experiment 1 found induction when rats licked to earn the rewards but consumed them at a location separate from the spout licked to earn them. Experiment 2 also found induction when rats earned (and consumed) rewards by licking the same spout throughout the session. Experiment 3 separately measured instrumental lever pressing for sucrose rewards and licking the sucrose during the reward period. We found that both measures increased for 1% sucrose when 32% sucrose reinforcement was upcoming. The present results indicate that the type of response is not the sole determinant of whether contrast or induction is observed. Rather, they suggest that other procedural details, such as the location of reinforcer delivery, influence which effect is observed. The results also indicate that associative processes underlie the appearance of induction in responding for 1% sucrose. 相似文献
139.
Adler LA Spencer T Faraone SV Reimherr FW Kelsey D Michelson D Biederman J 《Journal of attention disorders》2005,8(3):121-126
The standardization of ADHD ratings in adults is important given their differing symptom presentation. The authors investigated the agreement and reliability of rater standardization in a large-scale trial of atomoxetine in adults with ADHD. Training of 91 raters for the investigator-administered ADHD Rating Scale (ADHDRS-IV-Inv) occurred prior to initiation of a large, 31-site atomoxetine trial. Agreement between raters on total scores was established in two ways: (a) by Kappa coefficient (rater agreement for each item with the percentage of raters that had identical item-by-item scores) and (b) intraclass correlation coefficients (reliability). For the ADHDRS-IV-Inv, rater agreement was moderate, and reliability, as measured by Cronbach's alpha, was substantial. The data indicate that clinicians can be trained to reliably evaluate ADHD in adults using the ADHDRS-IV-Inv. 相似文献
140.
In addition to providing robust cues diagnostic of prospective mates' heritable fitness, various physical features could be similarly utilized in inferring individuals' parental abilities. This study sought to explore how variations in sexually dimorphic facial features inform perceptions of social targets as motivated to provide parental care. American undergraduates (N = 244) viewed a series of 12 total male and female faces manipulated at varying degrees of sex-typicality (i.e., masculinized versus feminized versus unaltered controls) on a within-subjects basis, and rated the perceived motivation of each target to nurture and protect a child using items derived from the Parental Care and Tenderness Scale. Female targets were perceived as more motivated by parental care than male targets, F(1, 240) = 14.86, p < .001, ηp2 = 0.058, whereas male targets were perceived as specifically motivated to protect offspring, F(1, 240) = 177.32, p < .001, ηp2 = 0.425. Feminized targets were additionally perceived as more motivated by nurturance, though such inferences were apparent for both male and female targets, F(1, 240) = 7.36, p < .001, ηp2 = 0.058. Findings represent an understanding of perceivers use of functional heuristics of sexual dimorphism in identifying optimal parents. 相似文献