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261.
262.
The effects of skew on the standardized item alpha were examined with Monte Carlo techniques. Alphas computed from normal variables were compared with alphas from lognormal variables, ranks, and skewed versus normal Likert-type variables. The extent and direction of skew were varied, as was the size of the population interitem correlation (rho), the number of items, and the number of categories for Likert-type variables. Because the average interitem correlation affects alpha and skew affects the average interitem correlation, the effect of skew on the average interitem correlation also was examined. Results indicated that skew decreased the average interitem correlation and produced small decreases in alpha that were largest when skew was large, rho was small, items were skewed in opposite directions, and there were fewer items. 相似文献
263.
Files FJ Meyer A Cantz P Young M Sierra G Berman D Stachelski A Cantz V 《The Journal of general psychology》2006,133(2):183-189
The authors used the sucrose-substitution procedure to train operant self-administration of a 10% alcohol solution in 8 Long-Evans rats. After they established stable responding, they began a 10-session baseline. A 10-session experimental phase followed the baseline phase. During the experimental phase, the authors placed a large glass marble in the center of the experimental chambers before self-administration sessions. The presence of the marble decreased the rats' responding and alcohol intake significantly. The authors discussed the results in terms of distraction and the effects of concurrently available reinforcers on alcohol self-administration. 相似文献
264.
The concept of lethality is essential to the assessment of suicide risk; yet operational definitions of lethality for purposes of its measurement have been loose and varied. A number of scaling measures have been published in the literature, with no relative consensus on the best of these. In addition, only a few of these scales have published data on their psychometric properties. Of these, we argue that the best is the Lethality of Suicide Attempt Rating Scale (LSARS; Smith, Conroy, & Ehler, 1984). Presented here is a significantly revised and redesigned listing of drugs and chemicals and lethal ranges of ingestion (in caps, tabs, or ounces) by body weight to update that scale. 相似文献
265.
Rudd MD Mandrusiak M Joiner TE Berman AL Van Orden KA Hollar D 《Suicide & life-threatening behavior》2006,36(3):288-295
In light of concerns about potential iatrogenic effects of information about suicide, in the current study we examined the emotional impact of reading a list of warning signs for suicide in comparison to comparable lists for heart attacks and diabetes. All participants read two sets of warning signs, with the experimental group reading the suicide warning signs. Results confirm no difference in emotional impact across groups, along with providing evidence that warning signs for suicide are as easy to recall after exposure as warning signs for heart attack. Implications for pubic health campaigns are discussed. 相似文献
266.
Mandrusiak M Rudd MD Joiner TE Berman AL Van Orden KA Witte T 《Suicide & life-threatening behavior》2006,36(3):263-271
The issue of suicide warning signs on the Internet is considered. In addition to reviewing some of the relevant conceptual issues about warning signs, a random sample of Internet sites was selected and reviewed. Warning signs were grouped and agreement across sites was examined, with results confirming broad disparity in what is presented to the public. The implications of a lack of consensus on warning signs for suicide are discussed. 相似文献
267.
This study examined the effects that the acoustic-phonetic structure of a stimulus exerts on the processes by which lexical candidates compete for activation. An auditory lexical decision paradigm was used to investigate whether shortening the VOT of an initial voiceless stop consonant in a real word results in the activation of the lexical-semantic network of its voiced competitor, i.e., does acoustically modified time prime penny via dime. Results for normal subjects showed semantic priming for related pairs and mediated priming for voiced competitors, consistent with cascade models of language processing allowing for interaction between phonological and semantic levels of processing. Although Broca's aphasics showed semantic priming (dime primed penny), they failed to show priming in the context of a lexical competitor. These results are consistent with the hypothesis that these patients have a lexical processing deficit characterized by an overall reduction in lexical activation. 相似文献
268.
Explanations for sexual infidelity have been dominated by an evolutionary psychological theory of jealousy that finds its strongest support in research that employs a forced-choice hypothetical infidelity paradigm wherein participants imagine experiencing infidelity and choose whether sexual or emotional infidelity would be more distressing. Robust gender differences that support evolutionary psychological perspectives are consistently found using this paradigm, but recent work suggests that gender differences may be attenuated among actual infidelity victims. However, no research has used the forced-choice paradigm to compare real and hypothetical infidelity. This study uses this paradigm to compare reactions to imagined dating infidelity to those of infidelity victims. No gender differences are observed in response to the forced-choice question among victims of infidelity. Gender differences among participants who imagined infidelity are partially mediated by level of relationship power. Difficulties with the hypothetical forced-choice paradigm and implications for the evolutionary psychological theory of jealousy are discussed. 相似文献
269.
Attaining personal goals: self-concordance plus implementation intentions equals success 总被引:1,自引:0,他引:1
Koestner R Lekes N Powers TA Chicoine E 《Journal of personality and social psychology》2002,83(1):231-244
The present article includes separate meta-analyses showing that self-concordance and implementation intentions are significantly positively associated with goal progress. Study 1 confirmed the positive relations of both self-concordance and implementation intentions to weekend goal progress. Study 2 confirmed the positive relation of self-concordance with monthly progress on New Year's resolutions but failed to find a direct benefit for implementation intentions. Both studies, however, obtained a significant interaction effect indicating that goal self-concordance and implementation intentions combined synergistically to facilitate goal progress. The article also reports a meta-analysis and results from the 2 studies that demonstrated that goal progress was associated with improved affect over time. 相似文献
270.
Michael Berman 《亚洲哲学》2004,14(2):131-145
Through a comparative analysis of the key ontological notions in Merleau‐Ponty and Nagarjuna, I develop a relational social ontology that is grounded in their respective implicit and explicit ethics. Both thinkers take heed of our being‐in‐the‐world; this is evident in their views on intersubjective sociality and language. Recognizing the limitations in these views points us toward a greater understanding of the meaningfulness of our situated existences. In this vein, I propose a number of ideas to guide the work of comparative philosophy. 相似文献