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11.
A fundamental problem in organizations is designing mechanisms for eliciting voluntary contributions from individual members of a team who are entrapped in a social dilemma. To solve the problem, we utilize a game‐theoretical framework that embeds the traditional within‐team social dilemma in a between‐team competition for an exogenously determined prize. In equilibrium, such competition enhances the incentive to contribute, thereby reducing free‐riding. Extending existing literature, we focus on asymmetric competitions between teams of unequal size, and competitions between more than two teams. Comparing two protocols for sharing the prize—egalitarian and proportional profit‐sharing rules—we find that (i) free‐riding diminishes and (ii) team members contribute more toward their team's effort when they belong to the larger team and when the profit‐sharing rule is proportional. (iii) Additionally, under the egalitarian profit‐sharing rule team members contribute more than predicted by the equilibrium solution. We discuss implications of our findings for eliciting contributions in competitive environments. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
12.
Sellbom M Ben-Porath YS Baum LJ Erez E Gregory C 《Journal of personality assessment》2008,90(2):129-135
We examined the convergent and discriminant validity of the MMPI-2 Restructured Clinical (RC) scales in predicting relevant historical variables, treatment success, and recidivism in offenders enrolled in a batterers' intervention program. We used a sample studied previously by Petroskey, Ben-Porath, and Erez (2002), which included an ethnically diverse group of 483 men enrolled in a psychoeducational batterer's intervention program. We coded various historical variables (e.g., criminal history, substance abuse problems, mental health treatment, anger problems, and amount of partner violence), treatment dismissal, and recidivism up to 1 year posttreatment. Correlational analyses with the historical variables provided evidence of convergent and discriminant validity of the RC scales in this forensic sample. Regression analyses showed that these scales added to the historical variables in predicting treatment failure and recidivism. Relative risk analyses indicated the extent to which individuals entering treatment with elevated scores on RC4 and RC9 were at increased risk for these negative outcomes. 相似文献
13.
Dustin B. Wygant Lana I. Boutacoff Paul A. Arbisi Yossef S. Ben-Porath Peter H. Kelly William M. Rupp 《Journal of clinical psychology in medical settings》2007,14(3):197-205
The current study examined the MMPI-2 Restructured Clinical (RC) scales (Tellegen et al., MMPI-2 Restructured Clinical (RC) scales: Development, validation, and interpretation. Minneapolis: University of Minnesota Press, 2003) in a sample of 1,091 bariatric surgery candidates. The RC scales were
developed to address concerns about limited discriminant validity of the Clinical scales. Internal consistency and external
validity analyses were conducted to evaluate the RC scales in this setting. Results indicated that the RC scales are generally
more internally consistent than the Clinical scales and display significantly better convergent and discriminant validity
in predicting a variety of behavioral, psychological, and developmental variables relevant to preoperative bariatric psychological
evaluations. Implications of the results and recommendations for future research with the RC scales in medical settings are
discussed. 相似文献
14.
Games of timing constitute a sub-class of two-person, constant-sum, infinite games, where the problem facing each player is not what action to take, but rather when he should take action. The theoretical structure of games of timing with complete information and equal accuracy functions is described. An experimental paradigm of such games is presented by a computer-controlled, two-person, infinite game that simulates the Western-style duel.Ten pairs of male subjects participated in three sessions each in a duel experiment. Each pair played 420 duels in which both players had the same accuracy function, but the starting number of bullets available to each player in the dyad was varied systematically. The results of this experiment are analyzed and discussed in terms of variables that relate to predictions arising from the mathematical theory of duels. 相似文献
15.
Amnon Rapoport James P. Kahan William E. Stein 《Journal of mathematical psychology》1976,13(2):163-191
The paradigm of the 2-person, zerosum, infinite game as a model of bipolarized conflicts in real time is extended to the probabilistic duel, where a player does not know with certainty whether or not this opponent is armed, but only knows the probability of such armament. Twenty dyads participated in a computer-controlled probabilistic duel experiment, ten of them playing a noisy version (where all bullets fired are public knowledge) and ten playing a silent version (where unsuccessful fire is unknown to the opponent). Several game-theoretic implications were tested, some of which demonstrate the efficacy of the theory of games of timing as an explicatory mechanism for decision behavior in experimental duels. 相似文献
16.
James P. Kahan Arthur W. Coston Richard A. Helwig Amnon Rapoport Thomas S. Wallsten 《Behavior research methods》1976,8(2):165-169
NPER II is an on-line PDP-11/45 computer program for studying bargaining and coalition formation processes within the framework of n-person games in characteristic function form. The extensive vocabulary of the program and its mode of operation are presented nontechnically, followed by an examination of a protocol from a sample four-person game. Improvements over a previous version of the program and applications to other experimental paradigms investigating coalition formation and bargaining are discussed in the last two sections of the paper. 相似文献
17.
Theodore P. Zahn Judith L. Rapoport Christine L. Thompson 《Journal of abnormal child psychology》1980,8(2):145-160
The hypothesis is tested that the response to dextroamphetamine in terms of activity, attention, impulsivity, and autonomic activity is similar in normal (N) and hyperactive (H) children. Fourteen N and 15 H boys had skin conductance (SC), heart rate (HR), and finger temperature (ST) recorded during rest, presentation of eight 75- dB tones, and a reaction time (RT) procedure on three occasions: off drug (Day 1) and after ingestion (double-blind) of placebo and of .5 mg/kg dextroamphetamine. Both N and H groups showed drug effects, compared to placebo, of reduced motor activity and impulsivity, improved attention (RT), increased HR and HR slowing during RT foreperiods, and decreased ST. Both groups also had decreases in SC responsivity but in different parts of the test. Placebo compared to Day 1 produced increased activity and autonomic arousal but no change in RT. Stimulant drugs thus have similar behavioral and autonomic effects in both N and H boys, but the beneficial effects on behavior do not depend critically on increases in arousal. 相似文献
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20.
The authors examined and compared the susceptibility of three Minnesota Multiphasic Personality Inventory-2 (MMPI-2) scale sets (Clinical, Restructured Clinical [RC], and Content) to over- and underreporting using five analog samples. Two samples of 85 and 191 undergraduate students, respectively, took the MMPI-2 under underreporting versus standard instructions. Three samples consisting of 42 undergraduates, 73 psychiatric inpatients, and 84 medical patients took the MMPI-2 under overreporting versus standard instructions. A comparison of the effect sizes across the three sets of scales indicated that Clinical Scale scores are not less susceptible to distortion than the Content or RC Scales. An apparent lesser susceptibility to underreporting for the Clinical Scales was an artifact of the subtle items' effect on these scales. 相似文献