全文获取类型
收费全文 | 3973篇 |
免费 | 443篇 |
出版年
2023年 | 25篇 |
2022年 | 23篇 |
2021年 | 39篇 |
2020年 | 67篇 |
2019年 | 71篇 |
2018年 | 168篇 |
2017年 | 181篇 |
2016年 | 207篇 |
2015年 | 154篇 |
2014年 | 108篇 |
2013年 | 448篇 |
2012年 | 192篇 |
2011年 | 232篇 |
2010年 | 129篇 |
2009年 | 188篇 |
2008年 | 170篇 |
2007年 | 179篇 |
2006年 | 157篇 |
2005年 | 123篇 |
2004年 | 123篇 |
2003年 | 137篇 |
2002年 | 139篇 |
2001年 | 55篇 |
2000年 | 53篇 |
1999年 | 55篇 |
1998年 | 60篇 |
1997年 | 58篇 |
1996年 | 43篇 |
1995年 | 63篇 |
1994年 | 50篇 |
1993年 | 51篇 |
1992年 | 48篇 |
1991年 | 38篇 |
1990年 | 42篇 |
1989年 | 33篇 |
1988年 | 29篇 |
1987年 | 36篇 |
1986年 | 28篇 |
1985年 | 39篇 |
1984年 | 24篇 |
1983年 | 31篇 |
1982年 | 32篇 |
1981年 | 42篇 |
1980年 | 31篇 |
1979年 | 36篇 |
1978年 | 28篇 |
1977年 | 23篇 |
1976年 | 30篇 |
1975年 | 19篇 |
1974年 | 19篇 |
排序方式: 共有4416条查询结果,搜索用时 15 毫秒
101.
A field experiment was designed in which students approached sales personnel in 31 different retail settings, asking for help in selecting toys for a twin niece and nephew, 5 years of age. A majority of salesperson suggestions involved a sex-stereotypic selection of toys for both the male and the female child. Limited support was found for hypotheses that the responses of sales personnel would vary by retail setting (specialized toystore, department store, dimestore/discount store) and by sex of salesperson; responses did not vary by salesperson's age, however. Because more different toys are available for boys than for girls, female role expansion in children's play activities is a more likely outcome than sex-role convergence.This article is a revision of a paper presented at the annual meeting of the American Sociological Association, New York, August 1976. 相似文献
102.
103.
Subjects created imaginal interpretations of classical music passages in accordance with themes which were either concrete and comprehensible or abstract and difficult to comprehend. Recognition memory for the musical passages was found to be superior in the former condition. The results support the hypothesis that meaningful interpretation of stimulus material is a major determinant of memory accuracy. The implications of the results for comparisons of music and language are also discussed. 相似文献
104.
Philip H. Bornstein Paul J. Bach Miles E. McFall Patrick C. Friman Patricia D. Lyons 《Journal of applied behavior analysis》1980,13(1):171-176
Six mentally retarded adults, equally divided into two treatment groups, were provided with individualized social skills training programs. Treatment, evaluated via a multiple-baseline design strategy, was sequentially and cumulatively applied across target behaviors over a four-week intervention period. Behavioral observation probes and social validation measures served as the primary dependent variables. Results indicated that (a) treatment was effective for virtually all behaviors across all subjects, (b) improvements occurred for both training and generalization scenes, and (c) behavioral performance was maintained one month following the termination of treatment. 相似文献
105.
A field experiment investigated violation of the spacing norm which keeps distance between people in a particular type of crowding, high social density, when the number of people in an area is large but space is not necessarily restricted. The proportion of people passing a drinking fountain who drank from the fountain was observed in conditions of high and low social density and, for each of these densities, when a confederate stood one foot from the fountain and when no one stood near the fountain. Three hundred passersby were observed in each of the four conditions. The observations supported the conclusion that the spacing norm was followed in low social density ( p <.01) but violated under conditions of high social density for reasons other than lack of space. Interpretation focused on several concomitants of high social density, especially excessive social stimulation, and the accompanying tendencies to attribute less of the usual social meanings to people and honor fewer of their expectations. 相似文献
106.
Several tests of Fear of Success (FOS), Fear of Failure (FOF), and Need Achievement (nAch), plus Taylor's Manifest Anxiety Scale and a social desirability scale were administered to 104 males and 101 females. FOS, FOF, and nAch did not show factor validity. Results for predictive validity were also poor. Anxiety defined the first factor in the factor analysis. All first-factor tests negatively predicted female grade point average and American College Test scores. All the first-factor tests showed sex differences, with females scoring higher. A clarifying role for anxiety in the study of sex differences in achievement is indicated. 相似文献
107.
108.
Richard A. van den Pol Brian A. Iwata Martin T. Ivancic Terry J. Page Nancy A. Neef F. Paul Whitley 《Journal of applied behavior analysis》1981,14(1):61-69
This study examined classroom-based instruction in restauranting skills for handicapped persons. Three male students were taught each of four skill components in sequential order: locating, ordering, paying, and eating and exiting. Training was implemented in a multiple baseline design across subjects and consisted of modeling and role playing in conjunction with photo slide sequences and a simulated ordering counter. The use of a menu containing general item classes and a finger matching procedure for identifying errors in the delivery of change greatly reduced the reading and math skills necessary to enter and complete the program. Periodic probes were conducted in a McDonald's restaurant prior to, during, and up to one-year following the termination of training. In addition, two probes (overt and covert observation) were conducted in a Burger King restaurant to assess further generalization to a location different from the one depicted throughout training. Results showed that students' performance on restaurant probes improved as a result of training, generalized to novel settings, maintained over an extended period of time, and was comparable to that of a normative sample of nonretarded persons. 相似文献
109.
Patrick Cavanagh Edward M. Brussell Stephen R. Stober 《Attention, perception & psychophysics》1981,29(5):423-428
Following adaptation to a rectangular grating, subjects observed a shift in the perceived duty cycle of a test grating (Burton, Nagshineh, & Ruddock, 1977; DeValois, 1977). This suggests that size information about black and white pattern components may be analyzed independently. We have tested this hypothesis by combining adaptation to a 2-cpd rectangular wave grating (narrow white bars and wide black bars or vice versa) with adaptation to a 4-cpd sine wave (narrow white and black bars. The data do not support the independent analysis of white and black components, but they may be accounted for by mechanisms sensitive to the relative phase relations among the spatial frequency components of the input. 相似文献
110.
James R. Pomerantz David M. Goldberg Patrick S. Golder Sheldon Tetewsky 《Attention, perception & psychophysics》1981,29(6):605-611
Subjective contours were compared with objective contours in their ability to facilitate performance in speeded tasks that required judging the position of a dot or the slope of a line segment relative to the contour. Subjective contours were found to reduce both reaction times and error rates for dot localization but not for the more difficult slope discrimination task. These results add to the growing body of evidence suggesting that subjective contours have functional properties similar to those of objective contours. 相似文献