全文获取类型
收费全文 | 2235篇 |
免费 | 115篇 |
国内免费 | 3篇 |
专业分类
2353篇 |
出版年
2023年 | 15篇 |
2022年 | 22篇 |
2021年 | 37篇 |
2020年 | 40篇 |
2019年 | 53篇 |
2018年 | 74篇 |
2017年 | 73篇 |
2016年 | 91篇 |
2015年 | 53篇 |
2014年 | 68篇 |
2013年 | 276篇 |
2012年 | 125篇 |
2011年 | 111篇 |
2010年 | 94篇 |
2009年 | 77篇 |
2008年 | 105篇 |
2007年 | 98篇 |
2006年 | 93篇 |
2005年 | 80篇 |
2004年 | 75篇 |
2003年 | 77篇 |
2002年 | 67篇 |
2001年 | 39篇 |
2000年 | 36篇 |
1999年 | 38篇 |
1998年 | 23篇 |
1997年 | 17篇 |
1996年 | 31篇 |
1995年 | 19篇 |
1994年 | 14篇 |
1993年 | 14篇 |
1992年 | 25篇 |
1991年 | 19篇 |
1990年 | 17篇 |
1989年 | 10篇 |
1988年 | 22篇 |
1987年 | 17篇 |
1986年 | 16篇 |
1985年 | 12篇 |
1984年 | 23篇 |
1982年 | 9篇 |
1981年 | 9篇 |
1980年 | 11篇 |
1978年 | 9篇 |
1974年 | 6篇 |
1973年 | 8篇 |
1972年 | 13篇 |
1971年 | 7篇 |
1969年 | 10篇 |
1968年 | 9篇 |
排序方式: 共有2353条查询结果,搜索用时 15 毫秒
241.
Gert-Jan De Bruijn Stef P. J. Kremers EmEly De Vet Jascha De Nooijer Willem Van Mechelen Johannes Brug 《Psychology & health》2013,28(8):899-916
The present study examined if habit strength moderated the influence of intention on fruit consumption in a Dutch adult sample (N?=?521, 46.3% males, mean age?=?34.50, SD?=?10.87), using the theoretical relations of the Theory of Planned Behaviour (TPB). TPB variables and habit strength were assessed at baseline. Fruit consumption was assessed with a validated questionnaire five weeks later. Three groups were created: low habit strength (n?=?180), medium habit strength (n?=?185) and high habit strength (n?=?156). Confirmatory factor analyses and multi-group path analyses were performed using AMOS 4.0. A good fit was obtained for the overall measurement model and the structural models. Multi-group path analyses showed that intention was a significant predictor of fruit consumption in the low habit (β?=?0.36, p?<?0.001) and medium habit group (β?=?0.30, p?<?0.001), but a non-significant predictor in the high habit group (β?=?0.05, p?=?0.596). Implications for information-based and motivation-based interventions are discussed. 相似文献
242.
It seems likely that proactive coping is an important mechanism for dealing successfully with threats to personal goals, yet little empirical research has been conducted in relation to this concept. The aim of the present study is to examine to what extent proactive coping is influenced by situation-specific features as well as by personal characteristics. Three vignettes, each representing a potential decline in an important resource (health, social relationships and finance), were presented to 123 adults between 50 and 70 years old. Multilevel analyses show that proactive coping is highly variable within persons and that three situational factors (type of stressor, appraised threat and appraised control) affected the employment of proactive coping strategies. Future temporal orientation was identified as a significant, positive predictor of proactive coping, but none of the other personal factors were found to be relevant. 相似文献
243.
244.
Abstract Self-efficacy expectations are important psychological determinants of smoking cessation. The present study aimed at exploring different sorts of self-efficacy. The following self-efficacy scales were composed: Emotional self-efficacy, Social self-efficacy, Skill self-efficacy, Relapse self-efficacy and Try self-efficacy. In a sample of 752 smokers with low motivation to quit, two subsequent self-report measurements of self-efficacy were conducted. Firstly, we investigated to what extent potential sources of self-efficacy - quitting history and smoking behavior -were related to the types of self-efficacy. The explained variance in self-efficacy scores ranged from 4.4% to 23.1%, and in all five types of self-efficacy, smoking behaviour explained a higher percentage of self-efficacy than quitting history. The number of past quit attempts was only related to Relapse self-efficacy. Secondly, we investigated to what extent the different types of self-efficacy at T1 were predictive of quitting behavior measured at T2. The results showed that only Skill self-efficacy was predictive of quitting activity between Tl and T2. Point prevalence quitting at T2 was predicted by Skill self-efficacy and Relapse self-efficacy. The latter type of self-efficacy, however, was a negative predictor of quitting. The different types of self-efficacy can be mapped on two dimensions: The extent to which the means to accomplish a certain task are specified in the questionnaire item; and the phase of behavior change to which the self-efficacy tasks are relevant. Based on the findings from the predictive validity, it is concluded that the more clearly the means to accomplish the task are specified, the more valid the self-efficacy judgements are. 相似文献
245.
Pierluigi Zoccolotti Maria De Luca Laura Lami Claudia Pizzoli Maria Pontillo Donatella Spinelli 《Child neuropsychology》2013,19(6):639-647
In this study, we examined the effect of multiple versus single stimulus presentation in typically developing readers and children with developmental dyslexia. The tasks involved either reading single words or arrays of words or naming single or multiple colors and digits (rapid automatized naming or RAN). To be able to compare these sets of conditions, we recorded total response times (i.e., the time between stimulus onset and the end of the participant’s vocal response) in all cases. The study included 43 typically developing readers and 25 children with dyslexia. Results indicate that typically developing readers have a clear advantage with multiple over single items on both RAN and reading tasks. The children with dyslexia showed a moderate advantage for multiple stimuli in naming colors and digits but presented the opposite pattern in reading.With regard to reading, the disproportionate impairment of the children with dyslexia in dealing with multiple arrays suggests difficulty in integrating the multiple subcomponents of the reading task over and above the basic nuclear deficit in decoding words. Regarding the RAN tasks, results confirm that the requirement of integrating multiple subcomponents may be critical in mediating the predictive value of these measures on reading. 相似文献
246.
An analysis based on crystal symmetry and high-resolution transmission electron microscopy (HRTEM) is presented as a general methodology to identify planar defects on the basal planes of D019 compounds. As a starting point, the possible (close-packing preserving) planar defects are classified in accordance with their visibility, and the magnitude of the displacement vector on prismatic projections. Analysis of experimental HRTEM images, obtained under two different viewing conditions, followed by matching with simulated images, enables unambiguous identification to be made. The methodology is applied to planar defects observed in D019 Co3 相似文献
247.
Evidence regarding the validity of reaction time (RT) measures in deception research is mixed. One possible reason for this inconsistency is that structurally different RT paradigms have been used. The aim of this study was to experimentally investigate whether structural differences between RT tasks are related to how effective those tasks are for capturing deception. We achieved this aim by comparing the effectiveness of relevant and irrelevant stimulus–response compatibility (SRC) tasks. We also investigated whether an intended but not yet completed mock crime could be assessed with both tasks. Results showed (1) a larger compatibility effect in the relevant SRC task compared to the irrelevant SRC task, (2) for both the completed and the intended crime. These results were replicated in a second experiment in which a semantic feature (instead of color) was used as critical response feature in the irrelevant SRC task. The findings support the idea that a structural analysis of deception tasks helps to identify RT measures that produce robust group effects, and that strong compatibility effects for both enacted crimes as well as merely intended crimes can be found with RT measures that are based on the manipulation of relevant SRC. 相似文献
248.
Greet Peters Bert De Smedt Joke Torbeyns Pol Ghesquière Lieven Verschaffel 《British journal of psychology (London, England : 1953)》2013,104(4):495-511
Subtraction problems of the type M ? S = ? can be solved with various mental calculation strategies. We investigated fourth‐ to sixth‐graders' use of the subtraction by addition strategy, first by fitting regression models to the reaction times of 32 two‐digit subtractions. These models represented three different strategy use patterns: the use of direct subtraction, subtraction by addition, and switching between the two strategies based on the magnitude of the subtrahend. Additionally, we compared performance on problems presented in two presentation formats, i.e., a subtraction format (81 ? 37 = .) and an addition format (37 + . = 81). Both methods converged to the conclusion that children of all three grades switched between direct subtraction and subtraction by addition based on the combination of two features of the subtrahend: If the subtrahend was smaller than the difference, direct subtraction was the dominant strategy; if the subtrahend was larger than the difference, subtraction by addition was mainly used. However, this performance pattern was only observed when the numerical distance between subtrahend and difference was large. These findings indicate that theoretical models of children's strategy choices in subtraction should include the nature of the subtrahend as an important factor in strategy selection. 相似文献
249.
Snezhanka Kazakova Veroline Cauberghe Mario Pandelaere Patrick De Pelsmacker 《Media Psychology》2013,16(4):425-450
Media multitasking represents an important aspect of the recent evolution in media consumption habits. While some experimental research exists, it has primarily focused on the detrimental effects of multitasking on task performance. We go a step further by examining the impact of media multitasking on information processing style. Study I demonstrates that media multitasking, compared to sequential media consumption, leads to a more local perceptual processing style. Furthermore, the frequency of media switching predicts the level of perceptual processing. Study II extends these findings by showing that media multitasking also affects conceptual processing style. Specifically, media multitasking leads to lower-level (or more concrete) construal of behaviors in a subsequent task. It further shows that conceptual rather than visual switching between media drives the observed differences in conceptual processing. These findings suggest that, as a growing phenomenon, media multitasking behavior may substantially alter the way media viewers process media content. 相似文献
250.
Esperanza Gonzalez-Bono Sara De Andres-Garcia Luis Moya-Albiol 《Anxiety, stress, and coping》2013,26(1):107-120
Abstract Taking care of offspring during a prolonged period of time is probably one of the most stressful life experiences for parents. The present study compares the cortisol awakening response (CAR) in 38 long-term caregivers (mothers and fathers of schizophrenic relatives) with a control group of 32 non-caregivers. Factors such as general stress, caregiver burden, patient severity, and institutionalization were studied. Although a blunted CAR was observed in caregivers in comparison with controls, this difference was not significant. Among caregivers, the absence of institutionalization for the patient is associated with a lack of CAR in caregivers in comparison with caregivers of institutionally supported patients. General stress, caregiver burden, and patient severity themselves did not favor significant changes in CAR. CAR shows greater sensitivity to institutional support than patient severity and perceived stress. Further research is needed to explain the impact of these factors on health and the psychological factors involved. 相似文献