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1.
Group and individual-difference adoption designs lead to opposite conclusions concerning the importance of shared environment (SE) for the child outcomes of IQ and antisocial behavior. This paradox could be due to the range restriction (RR) of family environments (FE) that goes with adoption studies. Measures of FE from 2 of the most recent adoption studies indicate that RR is substantial, about 67%, which corresponds to the top half of a normal FE distribution. RR of 67% cuts effect sizes and R2 statistics by factors of 3 and 2-2.5, respectively. Because selection into an adoption study in inherently a between-family process and assuming that comparable restriction of genetic (G) influences are absent, estimates of SE, G, and nonshared influences will be substantially biased, respectively, down, up, and up by RR. Corrections for RR applied to adoption studies indicate that SE could account for as much as 50% of the variance in IQ.  相似文献   

2.
决策者的认知特点, 以及决策过程中建议者,任务特征,环境因素等都会影响决策者的认知加工, 并最终影响建议采纳.目前建议采纳过程中的认知研究主要集中于决策者方面, 本文通过总结以往研究, 从决策者的认知风格,社会认知复杂性,认知策略以及情绪对认知的影响等四个方面, 系统阐述了认知对建议采纳的影响.同时, 结合态度改变理论,解释水平理论,具身认知理论以及认知失调理论等进一步讨论了建议采纳的认知发生机制, 并在此基础上初步构建了建议采纳认知机制模型.未来研究可进一步探讨决策者的认知灵活性,认知闭合需要等对建议采纳的影响, 以及建议提出的认知机制, 以丰富建议采纳领域研究.  相似文献   

3.
成功的新产品开发是企业获取竞争优势的重要因素, 但创新产品并非总能得到市场的接受, 大多数的新产品扩散往往以失败告终。因此, 业界和学界对新产品采纳问题进行了诸多探索。新产品采纳过程是指创新产品从被设计制造出来, 到最终被消费者或潜在消费者认识和采用的过程。对相关研究综述发现:以Rogers创新扩散模型为依据, 按采纳时间和特征的不同, 新产品采纳者可以系统分为早期采纳者和晚期采纳者, 二者之间主要从创新性、产品理解和易感性三个维度进行区分。具体来说, 早期采纳者具有高创新性、高产品理解和低易感性; 晚期采纳者具有低创新性、低产品理解和高易感性。在此基础上, 我们探究了各维度下影响消费者新产品采纳的具体因素。未来研究可以从这三个维度出发, 结合已有研究的不足以及当前环境、消费特点等进行拓展。  相似文献   

4.
This article investigates two hypotheses put forward to explain the effect of religion on the decision to use contraception in India. The first hypothesis is the "pure religion effect," that the intellectual content of religion influences contraceptive behavior. This hypothesis is explored by examining women's views on the theological content of Islam and Hinduism in relation to birth control, provided by a sample of 186 rural Hindu and Muslim women from southern India. The second hypothesis examined is the "characteristics" hypothesis, that religious differences in contraceptive adoption are explained by socioeconomic characteristics of religious groups. This is tested by a logit model that shows that there is no statistically significant difference between Hindus and Muslims in the effect of religion on contraceptive adoption, after controlling for socioeconomic characteristics. Taken together, the qualitative and quantitative findings have significant implications for religious groups and for population policies in India.  相似文献   

5.
Shifting travel away from cars and towards more active modes has proven a formidable policy challenge. This study aims to uncover the determinants of walking and cycling adoption by applying a stage-of-change framework. Drawing on the Transtheoretical Model, this framework models the adoption of active modes as a series of stages from pre-contemplation to maintenance. Ordinal logit models applied to US data (n = 914) illustrate the importance of both observable demographic-personal and perceptual-attitudinal variables for determining stage-of-change membership. Comparing walking and cycling, the model reveals both shared variables (vehicle ownership, self-identity) and differing factors (gender, environmental spatial ability) distinguishing among adoption stages, which has significant implications for transport policy. Results indicate that a model combining both demographic-personal and perceptual-attitudinal factors has the best fit and validity, suggesting that travel behavior interventions would benefit from multivariate segmentation methods that consider an array of individual and group characteristics. This research also gives evidence of different determinants motivating change processes for cycling versus walking. Taken together, results suggest a need for tailored policy interventions to promote behavioural adoption based not merely on the specific mode selection, but also on the usage stage under consideration.  相似文献   

6.
Objective: The PA Counseling (PAC) trial tested a primary care intervention using Self-Determination Theory (SDT) as the guiding framework. This paper presents specific results related to SDT constructs in a physical activity (PA) context. Specifically, whether patients who received both brief autonomy supportive PA counseling from their health-care provider and intensive (3 month) autonomy supportive counseling from a PA counselor would report greater levels of autonomy support, autonomous motivation, perceived competence and PA adoption, than patients receiving only brief counseling. In addition, we tested Williams’ SDT process model in the context of PA adoption.Method: Measures of autonomous motivation and perceived competence for PA were measured at baseline and 6 weeks. PA was assessed at baseline and 13 weeks. An autonomy support index was calculated by multiplying minutes of counseling by perceptions of autonomy support. Group differences in autonomy support, autonomous motivation, perceived competence and PA were examined. The SDT process model of PA adoption was tested via path analysis.Results: The results showed higher autonomy support and autonomous motivation at 6 weeks and higher PA levels at 13 weeks for the experimental group. The SDT process model for PA adoption showed that autonomous motivation and perceived competence at 6 weeks significantly predicted 13-week PA for the experimental group.Conclusions: This study provides a rigorous field test of SDT theory in a PA context. It demonstrates the versatility and applicability of the SDT model for health behavior change. SDT-trained PA counselors appear to provide valuable contribution to facilitating patient behavior change, by increasing patient autonomous motivation for PA.  相似文献   

7.
Using as illustration the case of Nikolas E., a six-year-old child with HIV/AIDS, this article considers the competing rights of children, parents, and state in cases involving pediatric medical disputes. The article outlines arguments in favor of and against children's participation in medical decisions and describes legal standards currently used in resolving pediatric medical disputes. The article then proposes adoption of a new legal standard described as the 'fairness and reasonableness of the child's decision,' and articulates advantages and disadvantages of such an approach, as well as the factors that should be considered in implementing the standard. Finally, the article argues for a methodology for including children's wishes in pediatric medical decision making that is based upon Monahan and Walker's model for including social science evidence in legal contexts and evaluates alternative strategies for including children meaningfully in the process of making medical decisions that affect them.  相似文献   

8.
This study examines 2 different causal models to predict physical exercise motivation and behavior under a longitudinal perspective. The first model includes 5 latent variables that were hypothesized to have an impact on exercise intention and behavior: behavior-specific social support, exercise self-efficacy, perceived health benefits, perceived barriers, and subjective vulnerability to cardiovascular disease. The second model was based on all variables of the first model, but additionally included the new variable "pressure to change." Pressure to change was defined as the extent to which a person feels the necessity that specific personal life circumstances (e.g., health status, social relations) may not remain as they are and ought to be changed. It was hypothesized that the inclusion of health-related pressure to change would result in a better prediction of exercise intention. The proposed causal models were tested separately at the stages of exercise adoption and maintenance. Covariance structure analyses (LISREL) confirmed that pressure to change may be an important factor in the motivational process that leads to the adoption of regular physical exercise. Adding this latent variable to the basic model improved the amount of explained variance in exercise intention by 6%. Furthermore, the results did not support the assumption that cognitive control is critical especially during the acquisition of exercise behaviors, but may be less influential once the behavioral routines have been established. Our data rather indicate that regular physical exercise, even if performed on a regular basis for years, always remains a behavior that requires a high level of cognitive guidance.  相似文献   

9.
We investigated motivational and cognitive processes of behavior change with respect to mammography screening. One hundred forty-two women (ages 40 and older) recruited from three worksites answered a 41-item questionnaire consisting of statements based on constructs from the transtheoretical model of behavior change. Principal-components analysis identified two factors: a six-item component representing positive perceptions of mammography (Pros) and a six-item component representing avoidance of mammography (Cons). Analysis of variance showed that Pros, Cons, and a derived Decisional Balance measure (Pros minus Cons) were associated with stage of mammography adoption. Results are consistent with applications of the model to smoking cessation. The model is also discussed as it relates to other theories of behavior change and as a general strategy for analyzing perceptual data pertinent to health-related actions and intentions for behavioral change.  相似文献   

10.
Assessing motivational readiness and decision making for exercise.   总被引:20,自引:0,他引:20  
Motivational and cognitive processes of behavior change with respect to the area of exercise adoption were investigated. A total of 778 men and women, recruited from four worksites, answered a 40-item questionnaire consisting of statements based on constructs from the trans-theoretical model of behavior change. Principal-components analysis identified two factors--one a 6-item component representing avoidance of exercise (Cons), the other a 10-item component representing positive perceptions of exercise (Pros). Analysis of variance showed that the Pros, Cons, and a Decisional Balance measure (Pros minus Cons) were significantly associated with stage of exercise adoption. Results are consistent with applications of the model to smoking cessation and other areas of behavior change. Distinctions between exercise adoption and behaviors such as smoking cessation, weight loss, and alcoholism are discussed.  相似文献   

11.
Interpersonal Psychotherapy (IPT) is a manualized, short-term (usually 12–16 sessions) based on the assumption that psychological disorders often emerge secondary to social and interpersonal problems that require active intervention to achieve symptom remission. The time-limited nature of IPT compels therapists to establish the goal of diminishing, on a weekly basis, a small number of focused interpersonal problems with a decided emphasis on proximal rather than historic conflicts and associated patterns of behavior. This strategy discourages the adoption of diffuse therapy goals and directions that have more opportunity to emerge in long-term, unstructured treatment modalities. The role of traditional personality testing in short-term therapy, when it occurs, is to identify and quantify symptom clusters that warrant attention as dependent measures in the treatment process. The role of personality factors in the genesis or maintenance of psychological disturbance is rarely addressed. The present article explores theoretical and pragmatic objections to the use of personality testing in IPT. A method is proposed for the limited but systematic incorporation of personality testing in the IPT treatment process using the Millon Clinical Multiaxial Inventory (MCMI-III). While unreasonable to expect personality transformation through short-term therapy, the partial attenuation of maladaptive behavioral, attitudinal, and emotional reactions to stressors could prove exceedingly helpful to short-term treatments such as IPT.  相似文献   

12.
王登峰  崔红 《心理学报》2008,40(3):327-338
区分中西方人格结构的共性与特异性及其性质是心理学研究中国化的重要理论问题。本文首先总结了中西方人格结构的五因素(大五)与七因素模型的建立过程及词汇学途径的内在逻辑,依据人格结构的行为归类假设,提出中西方人格结构的差异源自对行为进行归类的标准或原则的差异。其次,根据相关的实证研究结果,对中西方人格结构的“共性”与“特异性”的性质进行了分析,认为它们仅在具体行为或量表项目水平上才有区分的意义,对人格因素(维度)水平上的“共性”与“特异性”的区分是无法做到的,也是没有意义的。文中还讨论了心理学研究中国化的重要性  相似文献   

13.
OBJECTIVE: The study was guided by the precaution adoption process model; the author examined factors associated with (a) stage of change with respect to calcium intake at 4 time points and (b) calcium intake patterns across time. DESIGN: Data were collected by mailed questionnaire at baseline and at 3 follow-up assessments over 1 year. MAIN OUTCOME MEASURES: The primary outcome measures were calcium intake, stage of change with respect to calcium intake, and pattern of calcium intake across follow-up. Three patterns were identified: successful maintenance (adequate calcium intake at all 3 follow-ups), vacillation (adequate calcium consumption at 1 or 2 follow-ups), and inertia (inadequate calcium consumption at all 3 follow-ups). RESULTS: Five hundred six women completed baseline questionnaires, and 346 completed 3 follow-up assessments. Even after baseline stage of change was controlled for, longitudinal analyses revealed 3 variables that predicted different patterns of behavior across time. Isolated instances of adequate calcium intake were predicted by higher levels of knowledge and perceived benefits, whereas long-term maintenance was predicted by lower levels of perceived difficulty. CONCLUSION: These findings provide support for a central premise of the model, that different factors are important at different points in the behavior change process.  相似文献   

14.
Abstract:  Following Aulén, three broad, and competing, models of the atonement are outlined in this article, and an argument is offered to suggest that the mediatorial model should be considered normative. The argument proceeds through discussion with N.T. Wright's adoption of the victory model as normative in his expositions of Pauline theology. It is here suggested that the victory model is inherently unsuitable as a paradigm for the soteriology of Romans, and argued that the assertion that it can explain the process of reconciliation lacks foundation. Further, there is indication as to how the occasional language of victory in the New Testament can often be incorporated naturally within a mediation framework.  相似文献   

15.
The decision-making process underlying cosmetic surgery for esthetic purposes has been rarely investigated. To fill in this gap, we examined the determinants of undergoing plastic surgery among women within a framework that considers that the intentions to undergo and to not undergo surgery are related to different motivational systems that could both contribute to behavior. To do so, we assessed the goals underlying both options and theory of planned behavior constructs (Attitude, Perceived Behavioral Control, Subjective norms) related to undergoing and not undergoing plastic surgery as well as risk perception among a convenience sample of women (N = 265). Results confirmed that undergoing and not undergoing plastic surgery are related to different but not opposite goals. More importantly, both intentions predicted actual behavior but with the intention of not undergoing weighing more than the intention of undergoing plastic surgery. Finally, results supported previous research showing that risk perception does not add to predicting behavior. This contribution, therefore, supports the adoption of a decision-making framework to provide additional information to individual and social factors that can explain why women are undergoing plastic surgery for esthetic purposes or not.  相似文献   

16.
We applied the model of the stages and processes of change to exercise adoption and maintenance. This model has shown promise in advancing theory and treatment of the addictions and other negative health behaviors, but there have been few systematic attempts to apply the model to positive health behaviors, such as exercise adoption. Questionnaires dealing with the stages and processes of exercise change were developed and administered to a sample of 1,172 participants in a worksite health promotion project. The sample was split randomly into halves for (a) initial model development and testing and (b) confirmatory measurement model testing. Additional model confirmation was obtained by examining the hierarchical structure of the processes of change and by conducting Stage x Process analyses. Results suggest that the underlying constructs derived from smoking cessation and other addictive behaviors can be generalized to exercise behavior. Understanding the stages and processes of exercise behavior change may yield important information for enhancing exercise adoption, adherence, and relapse prevention at both individual and public health levels.  相似文献   

17.
We present the precaution adoption process model--a stage theory consisting of seven distinct states between ignorance and completed preventive action. The stages are "unaware of the issue," "aware of the issue but not personally engaged," "engaged and deciding what to do," "planning to act but not yet having acted," "having decided not to act," "acting," and "maintenance." The theory asserts that these stages represent qualitatively different patterns of behavior, beliefs, and experience and that the factors that produce transitions between stages vary depending on the specific transition being considered. Data from seven studies of home radon testing are examined to test some of the claims made by this model. Stage theories of protective behavior are contrasted with theories that see precaution adoption in terms of movement along a single continuum of action likelihood.  相似文献   

18.
Prevalence of HIV among heterosexuals is relatively low as compared to that of gay and bisexual males and intravenous drug users (IDUs). However, many heterosexuals engage in behavior that places them at risk for exposure to HIV. Changes in sexual behavior in response to HIV are reviewed for both high-prevalence groups such as gay and bisexual men and IDUs and lower prevalence heterosexual groups. Psychosocial factors contributing to behavior change are evaluated. The implications for future changes by heterosexuals, especially the adoption of self-protective behaviors such as condom use, are discussed.  相似文献   

19.
This article applies a general model of intentions to the study of family planning behavior. The model provides a basis for understanding fertility intentions and for explaining psychological and sociological variables affecting these intentions. The prediction of family planning behavior intentions is important but the degree to which intentions predict behavior is equally relevent. Past research seems to show a low correlation between fertility desires and actual fertility which can most likely be explained through either factors that confound the relation between intentions and behavior and factors that produce changes in intentions over time.  相似文献   

20.
The number of transracial adoptions in the United States, particularly international adoptions, is increasing annually. Counseling psychology as a profession, however, is a relatively silent voice in the research on and practice of transracial adoption. This article presents an overview of the history and research on transracial adoption to inform counseling psychologists of the set of racial and ethnic challenges and opportunities that transracial adoptive families face in everyday living. Particular attention is given to emergent theory and research on the cultural socialization process within these families.  相似文献   

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