全文获取类型
收费全文 | 2349篇 |
免费 | 121篇 |
出版年
2021年 | 15篇 |
2020年 | 38篇 |
2019年 | 55篇 |
2018年 | 63篇 |
2017年 | 62篇 |
2016年 | 67篇 |
2015年 | 48篇 |
2014年 | 62篇 |
2013年 | 264篇 |
2012年 | 95篇 |
2011年 | 121篇 |
2010年 | 78篇 |
2009年 | 69篇 |
2008年 | 92篇 |
2007年 | 94篇 |
2006年 | 91篇 |
2005年 | 69篇 |
2004年 | 68篇 |
2003年 | 75篇 |
2002年 | 70篇 |
2001年 | 40篇 |
2000年 | 35篇 |
1999年 | 42篇 |
1998年 | 39篇 |
1997年 | 19篇 |
1996年 | 40篇 |
1995年 | 32篇 |
1994年 | 27篇 |
1993年 | 31篇 |
1992年 | 32篇 |
1991年 | 35篇 |
1990年 | 31篇 |
1989年 | 22篇 |
1988年 | 32篇 |
1987年 | 21篇 |
1986年 | 27篇 |
1985年 | 35篇 |
1984年 | 35篇 |
1983年 | 17篇 |
1982年 | 29篇 |
1981年 | 15篇 |
1980年 | 23篇 |
1979年 | 22篇 |
1978年 | 22篇 |
1977年 | 15篇 |
1976年 | 12篇 |
1975年 | 14篇 |
1974年 | 13篇 |
1973年 | 16篇 |
1972年 | 13篇 |
排序方式: 共有2470条查询结果,搜索用时 0 毫秒
81.
A case of marital therapy is described in which the presenting problem, one of non-consummation, is treated by the standard Masters and Johnson's technique. Using repertory grids at the start and finish of treatment the changing perceptions of both partners and the therapist were determined. In spite of an ostensibly behavioural treatment, substantial changes occurred in the couple's understanding of the nature of their problem. The changes undergone in the couple's perceptions, and their differences from the therapist's assessments of change give rise to speculations about the nature of the therapeutic interaction and suggest further lines of exploration. 相似文献
82.
83.
84.
Estimating ability parameters in latent trait models in general, and in the Rasch model in particular is almost always hampered by noise in the data. This noise can be caused by guessing, inattention to easy questions, and other factors which are unrelated to ability. In this study several alternative formulations which attempt to deal with these problems without a reparameterization are tested through a Monte Carlo simulation. It was found that although no one of the tested schemes is uniformly superior to all others, a modified jackknife stood out as the best one in general, it was also super efficient (more efficient than the asymptotically optimal estimator) for tests with forty or fewer items. It is proposed that this sort of jackknifing scheme for estimating ability be considered for practical work.This research was funded through a grant from the Law Enforcement Assistance Administration (78-NI-AX-0047) to the Bureau of Social Science Research, Howard Wainer, Principal Investigator. We would like to thank Ronald Mead, Anne Morgan and James Ramsay for kind, generous, and invaluable help at various stages of the project. 相似文献
85.
Marcia Wright Kassner 《Journal of Vocational Behavior》1981,18(3):340-355
This study examined the significance of work preference variables, family preference variables, socialization influences, and needs for achievement and affiliation in predicting preferred traditional versus egalitarian marriages among university students. Results showed that, overall, male university students preferred traditional marriages while female university students preferred egalitarian marriages. Sex also interacted significantly with the following variables: desired family task involvement, desired job task involvement, and mother's family involvement. The data suggest that a perspective encompassing a wide variety of variables (including work, family, and socialization considerations) may be useful for conceptualizing individuals' preferences for traditional or egalitarian marriages. Implications of the results for management and career counseling are discussed. 相似文献
86.
The perception of distance and size in the presence of optical gradient information was investigated under four viewing conditions—binocular view with and without head motion, and monocular view with and without head motion. Subjects (60 adults) matched distance intervals (from 15 to 127 cm) and heights of a target triangle (from 5 to 15 cm) by adjusting the length of a metal tape. Both linear and power functions were fitted to each individual’s distance judgments, and the competing perceptual models were compared. For both models, it was found that binocular information was sufficient to specify relative, but not absolute, distance, that monocular information was sufficient to specify an orderly relation between target distance and judgment but not absolute distance, that average error was less in the binocular conditions, and that perceived distance was not affected in either condition by the addition of head motion. The analysis of size judgments revealed that monocular and binocular judgments did not differ, that matches made with and without head motion did not differ, and that, in all conditions, matches exceeded target heights by an average 30% to 40%. Judged size was also analyzed as a function of target distance. In all conditions but monocular view with head motion, the effect of distance was to increase size judgments. The distance judgments support the hypothesis (Purdy, 1958) that the binocular stimulus carries information that the monocular stimulus does not; they fail to support the hypothesis (Gibson, 1966) that observer motion adds information to the static stimulus. The size judgments support neither hypothesis but suggest an independence of perceived size from perceived distance. 相似文献
87.
The development of automatic word recognition as a function of reading skill was investigated in three experiments using the Stroop task. Reading skill level ranged from nonreaders to readers above the sixth-grade equivalent. Interference with color naming begins to emerge early in the process of learning to read, increases, and then subsequently decreases. Strings of identical letters delayed color naming for children just beginning to learn to read. The interference from words, presumably reflecting semantic processing, began developing early but did not peak until the second- to fourth-grade reading levels. These different sequences of development of interference in the various stimulus conditions suggest that word recognition is the result of a number of component processes that develop as children acquire skill in reading. 相似文献
88.
If spatial memory tasks are considered as foraging problems, it can be predicted that rats' difficulty in learning a win-stay task—revisiting part of a maze where food has recently been found—should be partly overcome if the food is not fully consumed at the first visit (nondepleted reward) rather than being all eaten (depleted reward). Three experiments confirmed and further analysed this result. Experiments 1 and 2 showed that it does not depend on the amount of food initially found; nor is win-stay performance affected by the amount of food actually eaten. Experiment 3 suggested that the effects of nondepleted reward are mainly due to the animals' being interrupted while eating, and very little to the fact that uneaten food is left behind. The results are discussed with regard to their implications for learning theory, and for the application of foraging theory to learning and memory experiments. 相似文献
89.
Gardiner and Gregg (1979) showed that in a free-recall paradigm in which each list word is embedded in a continuous stream of subject-vocalized distractor activity, recency recall was greater when the words were presented auditorily rather than visually. The experiment described here showed that this auditory advantage persisted even when list and distractor items were both spoken at a controlled pace by the experimenter, and that it was little influenced by instructions to give priority in recall either to the beginning or to the end of the list. These results strengthen the conclusion that this effect cannot be accommodated by any echoic memory theory and, because the effect was not enhanced when prerecency items were recalled first, demonstrate an additional difference between it and the somewhat similar auditory advantage found in immediate recall. 相似文献
90.
The present study examined the relation of attributions for spouse behaviors, attributions for global conjugal conflict, and marital adjustment. The sample consisted of 74 French-Canadian couples who completed the Marital Attribution Style Questionnaire, the Conflict Rating Scale, and the Dyadic Adjustment Scale. Results showed that the relation between attribution and marital satisfaction is stable across culture. In addition, specific and general attribution measures were low to moderately correlated. However, multiple regression analyses demonstrated that attributions for global conjugal conflict entered the regression equations more often than attributions for hypothetical spouse behaviors. These findings suggest that the comparability of marital attribution measures should not be taken for granted. The need to develop standardized measures is underlined. 相似文献