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171.
Cannabis is the illicit substance most used by young adults and adolescents in rich nations. Cannabis use may have negative consequences on mental and physical health and has been associated with low wellbeing indexes (i.e., life satisfaction). The present study aims to investigate the relationship of life satisfaction with cannabis use in young adults compared with personality and sociodemographic variables. Previous studies have found relationships between the Big Five traits and cannabis use as well as a gender gap. Males have been shown to have a higher consumption of cannabis than females. We conducted a survey by means of a self-report questionnaire on a sample of 600 young adults (average age 22.20 years) and performed a regression analysis to test the relationships of sociodemographic variables, personality, and life satisfaction with cannabis use. The results confirmed the gender gap and showed an association between cannabis use and conscientiousness, agreeableness, openness and life satisfaction. Life satisfaction was negatively related to cannabis use, which suggests that this behaviour may be motivated by coping with unsatisfactory life conditions.  相似文献   
172.
The persistence of doping in professional sports—either by individuals on an isolated basis and by whole teams as part of a systematic doping programme—means that professional sport today is rarely if ever untainted. There are financial incentives in place that incentivise doping and there are data that show that doping is often a systematic, organised enterprise (either at team-level, or at state-level). The main question to be answered today in professional sports is whether doping’s repressive anti-doping policies do not have greater negative consequences for society. Whilst some have suggested legitimising safe doping under medical control, in this paper, I argue that doing so will do little to prevent clandestine use of dangerous performance-enhancing substances, and suggest an alternative solution to lifting the ban on doping, i.e. starting from extending liability for doping in sport beyond athletes to those holding power and authority over athletes, to changing winning incentives for doping, to making sport sustainable in the longer time by devising ways of providing athletes with a steady income which is not linked to record breaking or sponsorships.  相似文献   
173.
An accurate diagnosis is an important precondition for effective psychotherapeutic treatment. The use of structured interviews provides the gold standard for reliable diagnosis. Suppiger et al. (2009) showed that structured interviews have a high acceptance among patients. On a scale from 0 (not at all satisfied) to 100 (totally satisfied) patients rated overall satisfaction with a structured interview at M = 86.55. Nevertheless, therapists rarely seem to use structured interviews in clinical practice. The aim of this study was to assess how frequently therapists use structured interviews in daily practice. Secondly, we hypothesized that therapists underestimate patient acceptance of structured interviews. As a third goal, we explored further reasons why therapists choose not to use structured interviews. We conducted an online survey of 1,927 psychiatrists and psychotherapists in Switzerland and asked them how frequently they used structured interviews and how they estimated patient satisfaction with these interviews. Furthermore, we asked therapists why they chose to use or not use structured interviews. Therapists reported using structured interviews on average with about 15% of their patients. Furthermore, therapists estimated significantly lower patient acceptance than patients themselves indicated (Mtherapist = 49.41, Mpatient = 86.55). Our data suggest lack of familiarity with these instruments as well as an overestimation of the utility of open clinical interviews as further reasons for not using structured interviews.  相似文献   
174.
Action–object phrases (e.g., “lift the bottle”) are remembered better if they have been enacted rather than learned verbally. This enactment effect is largest in free recall for phrases with objects (e.g., “bottle”) present because these phrases can be interactively encoded with those context objects (interactive context integration) that serve as retrieval cues. The current study investigated whether 6- and 8-year-olds are already capable of interactive context integration. Experiment 1 demonstrated interactive context integration with 8-year-olds. This was hindered in a condition where attention was directed away from context objects. Experiment 2 demonstrated interactive context integration with 6-year-old kindergartners. Taken together, our findings show that even 6-year-olds are capable of incidental context integration through enactment and that this process is attention based.  相似文献   
175.
The need to belong, a fundamental concept in psychology, organizes a wide range of findings in the study of interpersonal relationships. We suggest that human belongingness needs can be illuminated by examining when they go awry. We review research on social anhedonia, a trait that involves a marked disinterest in interpersonal contact. Social anhedonia has a long history in clinical psychology, particularly in the study of schizotypy and schizophrenia-spectrum disorders, but it is just starting to get attention from social and personality psychologists. Three lines of research-cross-sectional studies of individual differences, longitudinal studies of risk for psychopathology, and experience-sampling studies of interpersonal behavior-suggest that (1) social anhedonia represents genuine social disinterest, not merely shyness, introversion, or social anxiety, and (2) people high in social anhedonia have consistently poorer functioning, including a higher risk for developing schizophrenia-spectrum disorders. Just as satisfied relatedness needs promote flourishing, dysfunctional social needs promote psychopathology.  相似文献   
176.

Objective

Variability in infant sleep and negative affective behavior (NAB) is a developmental phenomenon that has long been of interest to researchers and clinicians. However, analyses and delineation of such temporal patterns were often limited to basic statistical approaches, which may prevent adequate identification of meaningful variation within these patterns. Modern statistical procedures such as additive models may detect specific patterns of temporal variation in infant behavior more effectively.

Method

Hundred and twenty-one mothers were asked to record different behaviors of their 4–44 weeks old healthy infants by diaries for three days consecutively. Circadian patterns as well as individual trajectories and day-to-day variability of infant sleep and NAB were modeled with generalized linear models (GLMs) including a linear and quadratic polynomial for time, a GLM with a polynomial of the 8th order, a GLM with a harmonic function, a generalized linear mixed model (GLMM) with a polynomial of the 8th order, a generalized additive model, and a generalized additive mixed model (GAMM).

Results

The semi-parametric model GAMM was found to fit the data of infant sleep better than any other parametric model used. GLMM with a polynomial of the 8th order and GAMM modeled temporal patterns of infant NAB equally well, although the GLMM exhibited a slightly better model fit while GAMM was easier to interpret. Besides the well-known evening clustering in infant NAB we found a significant second peak in NAB around midday that was not affected by the constant decline in the amounts of NAB across the 3-day study period.

Conclusion

Using advanced statistical procedures (GAMM and GLMM) even small variations and phenomena in infant behavior can be reliably detected. Future studies investigating variability and temporal patterns in infant variables may benefit from these statistical approaches.  相似文献   
177.
Research suggests a link between friendships and suicidality among U.S. youth, but this link has not been confirmed across ethnicities. The relationship between friendships and suicidality among Mexican American and European American adolescents was examined in this study. Specifically, the role of friendship problems (i.e., social isolation, poor quality friendships) and problematic friends (i.e., friends who were disconnected from school, delinquent friends) was explored. Participants were 648 community youth. Friends' school disconnection was related to Mexican American girls' suicidal ideation, while friends' delinquency was associated with European American youth suicidal behavior. Friendship factors were no longer associated with suicidality after controlling for suicidality correlates such as depression. These findings indicate that the relationship between friendships and suicidality varies by gender and ethnicity. They also suggest a dominant role of depression.  相似文献   
178.
The Wisconsin Schizotypy Scales are widely used for assessing schizotypy in nonclinical and clinical samples. However, they were developed using classical test theory (CTT) and have not had their psychometric properties examined with more sophisticated measurement models. The present study employed item response theory (IRT) as well as traditional CTT to examine psychometric properties of four of the schizotypy scales on the item and scale level, using a large sample of undergraduate students (n = 6,137). In addition, we investigated differential item functioning (DIF) for sex and ethnicity. The analyses revealed many strengths of the four scales, but some items had low discrimination values and many items had high DIF. The results offer useful guidance for applied users and for future development of these scales.  相似文献   
179.
Many theories argue that goal striving is more intense when people have optimistic expectancies for achieving the goal and when attention is self-focused. Brehm’s motivational intensity theory, however, predicts that the intensity of motivation is only as high as necessary, so people will try harder for difficult tasks than for easy tasks, all else equal. The present experiment compared these two approaches by manipulating two levels of self-focused attention (low and high self-awareness, via a mirror) and two levels of task difficulty (easy and difficult). Effort was assessed as cardiovascular reactivity, particularly change in systolic blood pressure. Neither high self-focus nor an easy task per se caused increased effort; instead, high self-focus significantly increased systolic reactivity when the task was difficult. Effort was thus higher despite less optimistic goal expectancies, a finding that is predicted by Brehm’s motivational intensity theory but not by traditional self-regulation models.  相似文献   
180.
The vigilance-avoidance attention pattern is found in anxious adults, who initially gaze more at threatening pictures than nonanxious adults (vigilance), but subsequently gaze less at them than nonanxious adults (avoidance). The present research, using eye tracking methodology, tested whether anxious children show the same pattern. Children with separation anxiety disorder or no mental disorder viewed pairs of pictures, while the direction of their gaze was tracked. Each picture pair showed one picture of a woman separating from a child, the other picture of a woman reuniting with a child. The results supported the vigilance-avoidance model in children. Although the two groups’ gaze direction did not differ during the first second of viewing, anxious children gazed significantly more at separating (threatening) pictures than nonanxious children after a period of 1 s. But after 3 s the pattern reversed: anxious children gazed significantly less at the separating pictures than nonanxious children.  相似文献   
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