全文获取类型
收费全文 | 27482篇 |
免费 | 228篇 |
国内免费 | 3篇 |
出版年
2020年 | 66篇 |
2019年 | 80篇 |
2018年 | 3632篇 |
2017年 | 2948篇 |
2016年 | 2368篇 |
2015年 | 272篇 |
2014年 | 162篇 |
2013年 | 652篇 |
2012年 | 772篇 |
2011年 | 2606篇 |
2010年 | 2641篇 |
2009年 | 1611篇 |
2008年 | 1893篇 |
2007年 | 2393篇 |
2006年 | 190篇 |
2005年 | 369篇 |
2004年 | 314篇 |
2003年 | 241篇 |
2002年 | 228篇 |
2001年 | 259篇 |
2000年 | 269篇 |
1999年 | 179篇 |
1998年 | 97篇 |
1997年 | 84篇 |
1996年 | 80篇 |
1993年 | 68篇 |
1992年 | 135篇 |
1991年 | 129篇 |
1990年 | 134篇 |
1989年 | 109篇 |
1988年 | 102篇 |
1987年 | 108篇 |
1986年 | 117篇 |
1985年 | 116篇 |
1984年 | 112篇 |
1983年 | 94篇 |
1979年 | 108篇 |
1978年 | 90篇 |
1977年 | 71篇 |
1976年 | 66篇 |
1975年 | 75篇 |
1974年 | 93篇 |
1973年 | 103篇 |
1972年 | 73篇 |
1971年 | 70篇 |
1970年 | 81篇 |
1969年 | 79篇 |
1968年 | 107篇 |
1967年 | 82篇 |
1966年 | 95篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
191.
Private and public sector managers were compared regarding their job characteristics and organizational commitment. We hypothesized that job characteristics would be positively related to commitment and that sector would moderate that relationship. Moderated regression analyses revealed partial support for both hypotheses. The existence of clarity and challenge were positively related to commitment. Job characteristics demonstrated a stronger relationship with commitment among private sector managers. Explanations for these findings and directions for future research are discussed. 相似文献
192.
193.
When subjects attempt to fake psychopathology on the MMPI, scores on subtle subscales tend to be lower than those of nonfaking subjects. Our study hypothesized that this paradox comes about because the subtle subscales have no predictive validity, but their face validity for psychopathology is the opposite of the keyed direction for psychopathology. Subjects who attempt to fake psychopathology do so on the basis of item content and thus achieve lower rather than higher scores. Three groups of 80 undergraduates took the MMPI under regular, faking-good, or faking-bad instructions. As expected, faking-bad subjects scored significantly lower than regular subjects on the 100 most subtle items, and this was due to their responses to those. 73 of the items whose face validity was misleading. The results are consistent with other work showing valid uses of subtle items in detecting deception. 相似文献
194.
Because rheumatoid arthritis (RA) has a more unpredictable course than osteoarthritis (OA), we hypothesized that generalized expectancies (optimistic/ pessimistic) influence the psychosocial adjustment of RA patients, whereas disease severity influences the adjustment of OA patients. Path analysis (LISREL VI) revealed that pessimistic RA patients (N= 107) and the more physically disabled OA patients (N= 108) reported poorer adjustment. The hypothesized mediating role of coping was supported for the RA but not the OA sample; that is, pessimism was associated with poor adjustment through greater use of wishful thinking coping. Unexpectedly, problem-solving coping was not found to mediate the optimism adjustment relationship. 相似文献
195.
Sharon E. Robinson Sari L. Roth Lynn L. Brown 《Journal of applied social psychology》1993,23(3):244-251
In an attempt to account for morale and job satisfaction among 314 nurses, this study investigated the influence of work-related and interpersonal variables. Morale on the unit was directly related to supervisor support, co-worker relationships, and work recognition. Personal morale was accounted for by recognition, physical environment, the job itself, and pay. Job satisfaction was predicted by personal morale, work commitment, job clarity, work pressure, and innovation. Suggestions for improving nurse morale and job satisfaction are made. 相似文献
196.
The effect of server posture (standing vs. squatting) on the size of tip left by restaurant customers was examined in two naturalistic experiments. In these studies, squatting down next to the tables increased servers’ tips from those tables. Both the practical implications of this effect and its similarity to other nonverbal effects on tipping are discussed. 相似文献
197.
One-hundred and ninety-two children (equally split between boys and girls) were studied when they were 5 years old in two settings, school and home. The children were observed in playgroups and at home, and were rated on activity level by their parents on the Rothbart Child Behavior Questionnaire. At age 7, the children were tested in our laboratory on the Harter Test of Perceived Competence and on an achievement task, and parents filled out the Child Behavior Checklist, the Child Behavior Questionnaire, and the Conners Parent Rating Scale. Home observations of activity level were significantly related to parent ratings of activity level, but not to school observations. Activity level at age 5 was related to parents' ratings of aggression and hyperactivity and to girls' learning problems at age 7. Activity level was not related to the children's self-perceived competence, but mothers' rating of high activity level at age 5 was related to low reading comprehension at age 7.Preparation of this paper was supported in part by the Center for Research for Mothers and Children, NICHD, U.S. PHS grant HD 19739 to Beverly I. Fagot. 相似文献
198.
J P Green S J Lynn J R Weekes B W Carlson J Brentar L Latham R Kurzhals 《Journal of abnormal psychology》1990,99(1):16-21
The responses given by highly hypnotizable, hypnotic subjects and those of unhypnotizable subjects who simulated hypnosis to questions of the type, "Do you mind telling me your name?" and "Do you mind standing up?" were contrasted. The purpose was to examine Erickson's (1980) assertion that literalism (answering "yes" or "no" verbally or nonverbally without any cognitive elaboration) is a marker of hypnotic "trance." Simulators exhibited a greater rate of literalism than hypnotic "virtuosos" (i.e., extreme scorers on both group and individual hypnotizability measures). Hypnotized subjects and nonhypnotized subjects approached in the campus library responded comparably. Because less than a third of hypnotic virtuosos responded literally, our results strongly refuted Erickson's assertion that literalism is a cognitive feature of hypnosis. 相似文献
199.
The literature suggests that self-management treatment packages have two potential strengths for the reduction or elimination of stereotypic behavior: (a) Self-management may be used for extended periods of time in the absence of a treatment provider, and (b) self-management techniques are easily adapated and used in a wide variety of natural settings. We assessed whether students with severe autistic disabilities could learn to use a self-management treatment package to reduce their stereotypic behavior within a multiple baseline across subjects design with withdrawals. The results showed that all of the students learned to use self-management procedures to reduce greatly levels of stereotypic behavior (typically to zero), and improvement occurred for extended periods of time in new settings without the presence of a treatment provider. The results are discussed in terms of the practical value of the treatment package and in terms of the implications for understanding autism. 相似文献
200.
I Pollack 《Perception & psychophysics》1990,47(2):105-111
Complex periodic auditory signals, produced by the Guttman-Julesz procedure of repeating segments of random noise, were employed to address the low region of auditory periodicity. Periodicity detection and discrimination tasks were examined with a common experimental procedure and a common measure of thresholds. Typically, detection and discrimination performance suffer at extremely low periodicities, presumably because of the extremely close spacing of harmonics throughout the auditory spectrum. Interaural phase effects are extremely weak for these signals, being largely confined to threshold-detection tasks. Despite qualitative phenomenological differences for different periodicity regions, detection and discrimination functions show no sharp discontinuities over a wide range of periodicities. 相似文献