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1.
Sex difference trends in completed suicide   总被引:1,自引:0,他引:1  
The recent suicide literature increasingly has contained statements suggesting that the differences in completed suicide between the sexes are lessening. A compilation of official suicide data for 1933-1980 verifies such a trend from the 1950s through 1971. However, increased differences (as measured by the ratio of male to female rates) were consistently observed from 1971 to 1980. These trends were found for data for the nation, for whites and nonwhites, for numbers of suicides, for crude rates, and for age-adjusted rates. Decreased sex differences were obtained for those 35-44, 45-54, 55-64, and for 65+ years of age, but increased sex differences were observed for those aged 15-24 and 25-34. Possible explanations for these findings are presented.  相似文献   

2.
In two experiments, visual search was used to study the grouping of shape on the basis of perceptual closure among participants 5-23 years of age. We first showed that young children, like adults, demonstrate an efficient search for a concave target among convex distractors for closed connected stimuli but an inefficient search for open stimuli. Reliable developmental differences, however, were observed in search for fragmented stimuli as a function of spatial proximity and collinearity between the closure-inducing fragments. When only closure was available, search for all the age groups was equally efficient for spatially close fragments and equally inefficient for spatially distant fragments. When closure and collinearity were available, search for spatially close fragments was equally efficient for all the age groups, but search for spatially distant fragments was inefficient for younger children and improved significantly between ages 5 and 10. These findings suggest that young children can utilize closure as efficiently as can adults for the grouping of shape for closed or nearly closed stimuli. When the closure-inducing fragments are spatially distant, only older children and adults, but not 5-year-olds, can utilize collinearity to enhance closure for the perceptual grouping of shape.  相似文献   

3.
对诚信的内在结构可有多种解析。从所属领域角度,诚信可以被分为心诚、言诚、行诚三个层面。这三个层面相互依赖、相互作用:心诚是言诚和行诚的内在依据,言诚和行诚是心诚的必要外化,而言诚和行诚则相互促进。从所涉对象角度,诚信可以被分为诚己、诚人、诚群三个维度。这三个维度彼此相关、层层推进:诚己是诚人和诚群的必要前提,诚人是诚己的必然延伸和必要确证,而诚群则是诚人的合乎逻辑的扩展。  相似文献   

4.
通过采用延迟满足决策任务,要求儿童分别为自己和他人做出决策,本研究考察了观点采择因素对儿童情感决策发展的影响。实验一选取3岁和4岁儿童各40名,结果发现3岁儿童和4岁儿童在为自己选和为他人选两种条件下的表现均无显著差异,都倾向于做出延迟选择。实验二选取3岁和4岁儿童各60名,在为他人的选择中进一步区分了不同的观点提示条件,并增加了观点采择测验任务。结果发现,4岁儿童的观点采择能力得到了初步的发展,在不同的观点提示条件下为他人选择时分别表现出了与为自己选择不同的决策趋势;3岁儿童尚未获得观点采择能力,在各种不同观点提示条件下为自己和为他人做选择时差异均不显著。本研究结果表明,观点采择能力对儿童情感决策的影响是发展性的。随着观点采择能力的发展,儿童逐渐能够确立正确的延迟动机,为他人做出有效的决策。  相似文献   

5.
通过干预范式和中介刺激法, 随机选取112名初中一年级学生为被试, 采用一系列自编的材料和工具, 考察了关键字母法效应的三个条件:识别关键字母、提取同分异构词和提取同分异构词释义。结果表明:(1)如果要求准确的回忆, 从短期和长期看, 识别关键字母和提取同分异构词都是关键字母法效应的必要条件, 提取同分异构词释义是关键字母法效应的充分条件。(2)如果只要求大致的回忆, 从长期看, 识别关键字母是关键字母法效应的必要条件, 提取同分异构词是关键字母法效应潜在的充分条件, 而提取同分异构词释义则是关键字母法效应的充分条件。  相似文献   

6.
The tendency for the affect associated with positive autobiographical events to fade less over time than the affect associated with negative autobiographical events (the fading affect bias, FAB) has been observed in a variety of contexts, but numerous mediators have been reported. This current study searches for the FAB, and for potential moderators of the FAB, in the context of romantic relationship memories. Both nonsexual types of memories and sexual types of memories showed the FAB. Moreover, the FAB emerged for memories of current relationships, but not for memories of past failed relationships. The FAB also emerged for securely attached individuals, but not for individuals exhibiting other attachment styles. In addition, the FAB was moderated by relationship quality, (for failed relationships) need to belong, sexual esteem, and sexual depression. Implications of these findings both for memory and for relationships are discussed.  相似文献   

7.
Structural equation models for predictors of traditional family values regarding relationships were examined in 2 samples: undergraduate students and adults ranging widely in age (23-86 years). Predictor variables included verbal ability, need for cognition, need for closure, intolerance for ambiguity, religiosity, and gender orientation. The models accounted for a substantial proportion of the variance in traditional family values (64% for students, 63% for adults). Findings provide little support for common stereotypes regarding age and gender differences in traditionalism. Instead, 3 individual-differences variables predicted traditional family values: need for closure, religiosity, and verbal ability. Outcomes argue for the need to identify multiple mechanisms by which personal characteristics such as need for closure and religiosity influence traditionalism in social belief systems and argue against reliance on status variables such as age and gender as explanatory variables for these beliefs.  相似文献   

8.
Protective factors for fostering reasons for living were examined among low-income, suicidal, African American women. Bivariate logistic regressions revealed that higher levels of optimism, spiritual well-being, and family social support predicted reasons for living. Multivariate logistic regressions indicated that spiritual well-being showed unique predictive value for reasons for living. Further, the multivariate model accurately predicted reasons for living 72% of the time. Partial support was found for a cumulative protective model hypothesizing a linear relationship between the number of protective factors endorsed and increased reasons for living. Implications for community-based preventive and recovery-oriented intervention efforts and future research are discussed.  相似文献   

9.
This analysis examined suicide rates by age, sex, and marital status in England and Wales for the period 1982-1996. Never married, widowed, and divorced people had higher rates of suicide than those who were married, for both sexes. Among the widowed ages 20-39 years, both sexes had the highest rate, and the rate decreased with age. The suicide rate for divorced people was similar to those who had never married, except for the younger group ages 20-29 years. The male:female ratios for the relative suicide risk for never married, widowed, and divorced to married for both sexes were statistically significantly different for older adults. The decrease in suicide rates observed for the period 1982-1996 in England and Wales was mainly attributable to the reduction of suicide rates among the widowed and divorced.  相似文献   

10.
Most research into the compromise effect focuses on cognitive factors related to choosing for oneself. However, there are daily opportunities to make choices for others, from helping friends to buy merchandise to choosing souvenirs for relatives. Although it is a common practice, choosing for others is rarely discussed in the literature. Hence, this research is directed to determine whether (i) the compromise effect is greater for people choosing for others with whom one has a distant relationship compared to choosing for themselves, (ii) the decision maker's susceptibility to interpersonal relationships, accountability, and anticipated regret moderate the relationship between choosing for others versus choosing for themselves and the compromise effect, and (iii) the confidence of the decision maker mediates the relationship between deciding for others and the compromise effect. Five hypotheses are proposed and they are supported by the results from four experiments. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

11.
Nineteen psychologists and 19 graduate students scored two Wechsler Adult Intelligence Scale-Third Edition patient protocols. Mean IQs and indexes were similar across groups, but the ranges for Verbal IQ (VIQ), Performance IQ (PIQ), and Full Scale IQ (FSIQ) on one protocol were 25, 22, and 11 points, respectively. For both protocols taken together, percentages of agreement with the "actual" IQs for psychologists were only 26.3 for VIQ, 36.8 for PIQ, and 42.1 for FSIQ. For students, percentages were 15.8 for VIQ, 23.7 for PIQ, and 31.6 for FSIQ. The percentages of FSIQs that fell within +/- 1 standard error of measurement of the actual IQs were 89.5 for psychologists and 76.3 for students. Scoring error also had a negative impact on index scores. Both groups were confident about their scoring accuracy.  相似文献   

12.
The role of the foraging (for) gene, which encodes a cyclic guanosine-3',5'-monophosphate (cGMP)-dependent protein kinase (PKG), in food-search behavior in Drosophila has been intensively studied. However, its functions in other complex behaviors have not been well-characterized. Here, we show experimentally in Drosophila that the for gene is required in the operant visual learning paradigm. Visual pattern memory was normal in a natural variant rover (for(R)) but was impaired in another natural variant sitter (for(S)), which has a lower PKG level. Memory defects in for(S) flies could be rescued by either constitutive or adult-limited expression of for in the fan-shaped body. Interestingly, we showed that such rescue also occurred when for was expressed in the ellipsoid body. Additionally, expression of for in the fifth layer of the fan-shaped body restored sufficient memory for the pattern parameter "elevation" but not for "contour orientation," whereas expression of for in the ellipsoid body restored sufficient memory for both parameters. Our study defines a Drosophila model for further understanding the role of cGMP-PKG signaling in associative learning/memory and the neural circuit underlying this for-dependent visual pattern memory.  相似文献   

13.
Rewarding elementary schoolchildren for their use of safety belts   总被引:6,自引:0,他引:6  
This study reports on the application of reward procedures to elementary schoolchildren to increase their use of seat belts en route to two schools. Following strict rules for assessing buckle-up compliance, all passengers in a car had to be safely secured in order for the schoolchildren to receive rewards. Compliant children received paper slips as they arrived at schools, which were redeemable for stickers, bumper stickers, and coloring books. The slips were also used in weekly drawings for pizza dinners. The mean compliance rate for School 1 was 4.3% during baseline, 66.2% for the reward phase across 4 weeks, 60% for return to baseline, 17.2% for Follow-Up 1, and 8.5% for Follow-Up 2. For School 2, the mean percentage was 5.3% at baseline, 69.8% for the reward phase, 68.5% for return to baseline, 40.1% for Follow-Up 1, and 20% for Follow-Up 2. These results indicate that rewarding the schoolchildren increased their own seat-belt use as well as that of their adult drivers and other passengers. Decreases in usage were observed after the rewards were removed.  相似文献   

14.
Emotional intelligence and interpersonal relations   总被引:11,自引:0,他引:11  
In 7 studies, the authors examined the link between emotional intelligence and interpersonal relations. In Studies 1 and 2, the participants with higher scores for emotional intelligence had higher scores for empathic perspective taking and self-monitoring in social situations. In Study 3, the participants with higher scores for emotional intelligence had higher scores for social skills. In Study 4, the participants with higher scores for emotional intelligence displayed more cooperative responses toward partners. In Study 5, the participants with higher scores for emotional intelligence had higher scores for close and affectionate relationships. In Study 6, the participants' scores for marital satisfaction were higher when they rated their marital partners higher for emotional intelligence. In Study 7, the participants anticipated greater satisfaction in relationships with partners described as having emotional intelligence.  相似文献   

15.
The aim of this study is to fill a gap in intelligence research by presenting data for the average IQ in Morocco and for a comparable sample in Spain. Adult samples were administered the Raven Standard Progressive Matrices (SPM) (Raven, Court, & Raven, 2001) and scored for the total test and for the three sub-factors of gestalt continuation, verbal-analytical reasoning and visuospatial ability identified by Lynn, Allik, and Irwing (2004). The total test and the three factors have shown satisfactory reliability. Our results for the Moroccan sample show significant relationship between general intelligence factor, gestalt continuation and visuospatial ability with education level and income. Conversely, these variables have been shown to be independent for the Spanish sample. This sample obtained significantly higher scores for the four factors assessed than the Moroccan one. These differences have been found also comparing samples with the same education levels. Finally, the errors percentage for Moroccans has been higher than for Spaniards in all the items, suggesting that the level of difficulty was higher for the Moroccan sample.  相似文献   

16.
外语效应指相比于母语背景,个体在外语背景下风险决策偏差会降低。针对影响外语效应的因素研究大多聚焦于外部因素和与个体外语水平相关的因素,少有研究探讨认知风格的作用。本研究通过524名成人被试,探索认知需求和认知闭合需求对外语效应的影响。结果表明:(1)风险决策中存在外语效应,相比于母语背景,外语背景下框架效应被削弱,且个体更偏向风险寻求。(2)对于认知需求和认知闭合需求都高或都低的个体,语言类型会影响风险决策,在母语环境下倾向于风险规避,在外语环境下倾向于风险寻求;而对于认知需求和认知闭合需求高低不一致的个体,语言类型对其风险决策倾向的影响不显著。本研究为认知风格如何综合影响风险决策提供了进一步的证据。  相似文献   

17.
Performance of pairs of three-choice tasks shows a consistency benefit for which reaction times are shorter when the stimulus-response mappings for each task are consistent (both corresponding or both mirrored) than when they are inconsistent. In the present study, we examined whether this consistency benefit is reduced at long stimulus onset asynchronies, as it is for pairs of two-choice tasks, or is relatively unaffected, as it is for pairs of four-choice tasks. The consistency benefit was evident for both corresponding and mirrored mappings, at all intervals. For consistent mirrored mappings, the benefit was found for the side stimulus positions (for which responses are crossed) but not for the center position, whereas for consistent corresponding mappings, a benefit was evident for the center position as well. The results for both mappings are in agreement with an emergent mapping-choice account. The consistent corresponding mapping also benefits from subjects’ ability to apply a respond-corresponding rule across tasks. An emergent perceptual-feature process that contributes to the consistency benefit for two-choice tasks does not seem to play a role in tasks with three or more choices.  相似文献   

18.
Social values theory was used to examine how parents make decisions for their adolescent children. Social values theory states that decision making for others is based on the social value of an action, leading to a norm for how to decide for others, whereas self decisions are influenced by a number of additional factors. Consistent with a risk-aversion norm, in hypothetical health and safety scenarios parents made more risk-averse decisions for their adolescent children than for themselves. Further, the level of risk and inconvenience affected self decisions more than decisions for one's child. A second study showed that the norm was stronger for decisions for one's child than for oneself and more related to parents’ decisions for their child than for themselves. In sum, parents’ decisions for their children seem to be largely determined by a norm stating how they are supposed to decide, at least in the domain of health and safety. Implications for both the judgment and decision making and parenting literatures are discussed.  相似文献   

19.
This study examined relations among spelling performance and students' beliefs about spelling, including self-efficacy for spelling ability, outcome expectancy for spelling, and attributions for good spelling across grades 4, 7, and 10. Spelling self-efficacy remained relatively constant across grades. Spelling outcome expectancies for adult life and school declined across grades, as did effort and ability attributions for spelling success, with a disproportional decrease in ability attributions between grades 4 and 7. Self-efficacy was the strongest predictor of spelling performance at all grade levels; attribution for ability entered into the regression for grade 4 students, while outcome expectancies for school and writing were more important in grades 7 and 10. Cluster analyses on the grade 10 sample showed that students with high efficacy as spellers and high outcome expectancy of spelling for writing were the best spellers, with the highest performance reserved for those who attributed good spelling more to effort than ability. The impact of spelling instruction on developing beliefs is discussed.  相似文献   

20.
Previous work revealed that mental rotation is not purely inserted into a same-different discrimination task. Instead, response time (RT) is slowed to upright stimuli in blocks containing rotated stimuli compared to RT to the same upright stimuli in pure upright blocks. This interference effect is a result of maintaining readiness for mental rotation. In two experiments we investigated previous evidence that these costs depend upon distinct sub-processes for children and for adults. In Experiment 1, the maintaining costs turned out to be independent of the visual quality of the stimulus for adults but not so for children. Experiment 2 revealed that the maintaining costs were greatly reduced for adults when they performed mental rotation as a go-no-go task, but not so for children. Taken together, both experiments provide evidence that whereas perceptual processes seem to be important for school-age children to maintain readiness for mental rotation, response selection is relevant for adults.  相似文献   

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