全文获取类型
收费全文 | 21570篇 |
免费 | 901篇 |
国内免费 | 13篇 |
出版年
2020年 | 249篇 |
2019年 | 238篇 |
2018年 | 411篇 |
2017年 | 353篇 |
2016年 | 382篇 |
2015年 | 245篇 |
2014年 | 356篇 |
2013年 | 1546篇 |
2012年 | 616篇 |
2011年 | 669篇 |
2010年 | 353篇 |
2009年 | 438篇 |
2008年 | 585篇 |
2007年 | 583篇 |
2006年 | 540篇 |
2005年 | 474篇 |
2004年 | 457篇 |
2003年 | 447篇 |
2002年 | 408篇 |
2001年 | 795篇 |
2000年 | 793篇 |
1999年 | 583篇 |
1998年 | 234篇 |
1997年 | 212篇 |
1996年 | 192篇 |
1992年 | 487篇 |
1991年 | 425篇 |
1990年 | 486篇 |
1989年 | 408篇 |
1988年 | 385篇 |
1987年 | 367篇 |
1986年 | 387篇 |
1985年 | 441篇 |
1984年 | 338篇 |
1983年 | 284篇 |
1982年 | 219篇 |
1979年 | 322篇 |
1978年 | 256篇 |
1977年 | 204篇 |
1976年 | 199篇 |
1975年 | 298篇 |
1974年 | 345篇 |
1973年 | 350篇 |
1972年 | 274篇 |
1971年 | 241篇 |
1970年 | 208篇 |
1969年 | 228篇 |
1968年 | 288篇 |
1967年 | 251篇 |
1966年 | 272篇 |
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
281.
The structure of interpersonal traits: Wiggins's circumplex and the five-factor model 总被引:4,自引:0,他引:4
Using a sample of 315 adult men and women, self-reports on Wiggins's revised Interpersonal Adjective Scales were jointly factored with self-reports, peer ratings, and spouse ratings on the NEO Personality Inventory to examine the relations between the two models. Results suggest that the interpersonal circumplex is defined by the two dimensions of Extraversion and Agreeableness, and that the circular ordering of variables is not an artifact of response biases or cognitive schemata. Circumplex and dimensional models appear to complement each other in describing the structure of personality, and both may be useful to social psychologists in understanding interpersonal behavior. 相似文献
282.
Psychometric properties of the Survey of Personal Beliefs: a rational-emotive measure of irrational thinking 总被引:5,自引:0,他引:5
A test consistency and confirmatory factor analyses were performed on the Survey of Personal Beliefs, a new measure of irrational thinking based on rational-emotive personality theory. The survey, which was logically derived, includes a general rationality factor and subscales measuring five hypothesized core categories of irrational beliefs. Subjects included a nonclinical sample of 130 men and 150 women, with a mean age of 46. Results indicated that the Survey of Personal Beliefs had satisfactory total and scale reliability. The confirmatory analyses supported a higher order factor model including 5 first-order factors ( awfulizing, self-directed shoulds, other-directed shoulds, low frustration tolerance, and self-worth) and 1 second-order or general factor. 相似文献
283.
Sonuga-Barke EJ Lea SE Webley P 《Journal of the experimental analysis of behavior》1989,51(2):185-197
Two experiments were carried out in which children's sensitivity to changes in reinforcer density (number of reinforcers per session) was measured in a choice paradigm. In Experiment 1, 24 girls (ages 6, 9, and 12 years) performed on concurrent-chain schedules of reinforcement. The initial links were variable-interval 10-s schedules. One terminal link always gave three tokens after 30 s, but the parameters associated with the other were varied. Independent manipulations of reinforcer size (two tokens or four tokens) and prereinforcement delay (25 s or 65 s) led to equal changes in the relative density of tokens that could be earned on the schedules. Subjects at all ages were sensitive to changes in reinforcer density brought about by changes in reinforcer size, whereas only 3 12-year-olds showed sensitivity to the changes brought about by manipulation of prereinforcer delay. In Experiment 2, titration procedures were used to test the extent of this insensitivity to delay in 32 6- and 12-year-old children. In these procedures, a repeated choice of the large reinforcer increased the delay to its delivery, and a repeated choice of the small reinforcer reduced the delay to the delivery of the large reinforcer. Whereas 6-year-old boys and girls tended to maintain a strong preference for the large reinforcer, so increasing the delay to its delivery, 12-year-olds tended to distribute their responses to both alternatives, thus producing a stable level of delay to the large reinforcer. The results from the two experiments support the idea of two stages in the development of adaptive intertemporal choice. 相似文献
284.
Gender and Sex-Role Influences on Children''s Self-Esteem 总被引:1,自引:0,他引:1
This study examined direct and moderating influences of gender and sex-role orientations on children's general self-esteem. Moderating influences of these variables on the prediction of self-esteem were examined with respect to two sets of competence beliefs regarding school achievement: perceived capacities and perceived strategies for doing well in school. One hundred nineteen fourth-, fifth-, and sixth-grade children were assessed using the Perceived Competence Scale for Children (Harter, 1982), the Multidimensional Measure of Children's Perceptions of Control (Connell, 1985), and the Children's Personal Attributes Questionnaire (Hall & Halberstadt, 1980). Correlational and hierarchical multiple regression analyses indicated that upper elementary schoolchildren's general self-esteem is (a) marginally related to biological gender, with boys showing a slight advantage; (b) significantly related to masculinity and androgyny; and (c) predicted more strongly by perceived capacities to do schoolwork in girls than in boys, and by perceived (lack of) strategies for academic success in nontraditionally sex-typed children than in traditionally sex-typed children. Of the two nontraditionally sex-typed groups, androgynous children were found to have more positive school competence beliefs than were undifferentiated children. 相似文献
285.
Children's (N = 28) perceptions of familial relationships were investigated with the Family Environment Scale (FES) and the Network of Relationships Inventory (NRI). The FES assesses overall impressions of the family, and the NRI measures perceptions of individual relationships. Because current family systems theory indicates that positive individual relationships within a dyad (e.g., child-mother) should be related to an overall favorable impression of the family system, we hypothesized that these two instruments should demonstrate convergence on selected dimensions. Results indicated that positive or negative relationships with an individual family member were related to how the child perceived the overall family system, supporting our hypothesis. 相似文献
286.
Two experiments compared placebo and hypnotic analgesia in high and low hypnotizable subjects. Experiment 1 demonstrated that hypnotic and placebo analgesia were equally ineffective in low hypnotizables, but that hypnotic analgesia was much more effective than placebo analgesia in high hypnotizables. Experiment 2 replicated these results, but also included low and high hypnotizables who were given a nonhypnotic suggestion for analgesia. Both the low and high hypnotizables in this group reported greater suggested than placebo analgesia and as much suggested analgesia as high hypnotizable hypnotic subjects. Both experiments found substantial discrepancies between the amount of pain reduction subjects expected from the various treatments and the amount of pain reduction they actually reported following exposure to those treatments. In Experiment 2, subjects in all treatments who reduced reported pain engaged in more cognitive coping and less catastrophizing than those who did not reduce pain. Theoretical implications are discussed. 相似文献
287.
Examined relapse rates in those individuals who have experienced an episode of unipolar depression as a function of the number of previous episodes, gender, age at onset of the episode (less than 40 vs. greater than 40), time since a previous episode, and depression level at time of interview. From of 6,742 participants, 2,046 were interviewed; of these, 1,130 had at least one, 513 reported a second and 173 reported a third episode. The probability for relapse was positively related to number of previous episodes, being female, depression level at time of interview, but not to age at onset (less than 40 vs. greater than 40). Women were also more likely to have more severe episodes. Participants with elevated depression symptoms reported a greater number of previous episodes. Following the first episode, there was a decline in hazard rate for men but not women; following the second episode, there was no change in vulnerability for men; for women, the results were ambiguous. 相似文献
288.
289.
290.
Mark W. Steege David P. Wacker Wendy K. Berg Karla K. Cigrand Linda J. Cooper 《Journal of applied behavior analysis》1989,22(1):23-33
Behavioral assessment procedures were used to prescribe and evaluate treatments of maladaptive behavior for 2 children with severe multiple handicaps. In Experiment 1, the results of an assessment of reinforcer preference were used in conjunction with a functional analysis of the conditions maintaining self-injurious behavior to prescribe a treatment for a child with severe disabilities. The treatment procedure involved the use of a pressure-sensitive microswitch to activate reinforcing stimuli during two solitary conditions, during which self-injurious behavior had occurred at high rates. The results were evaluated with a multiple baseline across settings design and indicated that self-injury decreased with concomitant increases in microswitch activation. Results were maintained at 6 weeks, 8 weeks, and 6 months. In Experiment 2, the results of behavioral assessments of reinforcer preference and self-injurious behavior were combined to develop a treatment for a second severely handicapped child, who exhibited high rates of self-injury in demand situations. This treatment was evaluated with a multiple baseline across tasks design and resulted in the elimination of self-injury for up to 15 months. 相似文献