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221.
222.
Warren W. Tryon Lawrence P. Pinto Debra F. Morrison 《Journal of psychopathology and behavioral assessment》1991,13(1):27-44
Pedometers (step counters) are inexpensive devices for obtaining naturalistic activity measurements. The existing reliability literature on pedometers is inconsistent. This article presents reasons for the disparity including (a) distinguishing between instrument reliability (Experiment 1) and clinical repeatability (Experiments 2–4) and (b) discussing methods of evaluating the reliability of activity measuring instruments. Experiment 1 shows that pedometer measurements have an uncertainty of approximately 5% (the test-retest correlational equivalent of .97) under laboratory conditions. Experiment 2 shows that pedometer measurements in college students walking a measured half-mile have approximately the same uncertainty. Experiment 3 shows that pedometer measurements from normal children walking a measured half-mile have an uncertainty of approximately 18% (the correlational equivalent of .91), while measurements from mildly hyperactive children have an uncertainty of approximately 29% (the correlational equivalent of .84). Experiment 4 shows that electronic step counters have an uncertainty of approximately 9% in normal and mildly hyperactive children and about 12% in clinically hyperactive children. 相似文献
223.
224.
Debra Neumann 《Behavior research methods》1986,18(2):135-140
The increasing sophistication of computer technology, combined with increased specification of therapeutic interventions, has facilitated development of computer programs that have achieved marked success in the psychotherapeutic treatment of circumscribed populations. This paper briefly reviews the history of computerized psychotherapy and examines several successful therapeutic computer applications in depth. These applications have attempted to replace the therapist with a computer. Another possible, as yet unexplored, application is the use of the computer as a vehicle for modification of an individual’s perceived competence to effectively operate on his or her environment. Using a computer to successfully manipulate one’s environment can provide a personal mastery experience that has the potential to contribute significantly to an increase in perceived self-competence, an essential component of positive therapeutic change. A study that would provide empirical support for this type of computer application is proposed. 相似文献
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226.
A systematic sequence of prompt and probe trials was used to teach picture names to three severely retarded children. On prompt trials the experimenter presented a picture and said the picture name for the child to imitate; on probe trials the experimenter did not name the picture. A procedure whereby correct responses to prompts and probes were nondifferentially reinforced was compared with procedures whereby correct responses to prompts and probes were differentially reinforced according to separate and independent schedules of primary reinforcement. In Phase 1, correct responses to prompts and probes were reinforced nondifferentially on a fixed ratio (FR) 6 or 8 schedule; in Phase 2, correct responses to prompts were reinforced on the FR schedule and correct responses to probes were reinforced on an FR schedule of the same value; in Phase 3, correct responses to prompts were reinforced on the FR schedule and correct responses to probes were reinforced on a continuous reinforcement (CRF; every correct response reinforced) schedule; in Phase 4, correct responses to prompts were reinforced on a CRF schedule and correct responses to probes were reinforced on the FR schedule; in Phase 5, a reversal to the conditions of Phase 3 was conducted. For all three children, the FR schedule for correct responses to prompts combined with the CRF schedule for correct responses to probes (Phases 3 and 5) generated the highest number of correct responses to probes, the highest accuracy (correct responses relative to correct responses plus errors) on probe trials, and the highest rate of learning to name pictures. 相似文献
227.
Loud sounds make soft sounds softer (contrast) and also make them less discriminable (which we callcondensation). We report on parallel phenomena in hedonics: Good stimuli reduce the pleasantness of less good stimuli, and also reduce
people’s preferences among the less good stimuli. In Experiment 1, subjects rated the pleasantness of fruit juices diluted
to approximate hedonic neutrality. Subjects who had just previously drunk and rated some good-tasting full-strength juices
rated the diluted juices lower than did subjects who had not (hedonic contrast). In Experiment 2, subjects drank pairs of
diluted juices and rated their preference for one juice over the other. Subjects who had just previously drunk and rated pairs
of full-strength juices gave lower preference ratings between the diluted juices than did subjects who had not (condensation).
Thus the same stimulus set produced contrast in Experiment 1 and condensation in Experiment 2, paralleling results in loudness. 相似文献
228.
Long DL Wilson J Hurley R Prat CS 《Journal of experimental psychology. Learning, memory, and cognition》2006,32(4):816-827
Readers construct at least 2 interrelated mental representations when they comprehend a text: a textbase and a situation model. Two experiments were conducted with recognition memory to examine how domain knowledge and text coherence influence readers' textbase and situation-model representations. In Experiment 1, participants made remember-know judgments to text ideas. Knowledge and coherence interacted to influence remember judgments differently than know judgments. In Experiment 2, the authors used the process-dissociation procedure to obtain recollection and familiarity estimates. Knowledge and coherence interacted to influence recollection estimates but not familiarity estimates. The authors claim that recollection and familiarity can be used as markers of the different processes involved in constructing a textbase and a situation model. 相似文献
229.
Bailey DB Beskow LM Davis AM Skinner D 《Mental retardation and developmental disabilities research reviews》2006,12(4):270-279
The likelihood of benefit is fundamental to decision making about newborn screening. But benefit is construed in different ways by different stakeholders. This article begins with a review of benefit as considered historically by various expert panels and organizations. We then show how 78 conditions fared when experts recently rated them on benefit using a scoring system recommended by a task force of the American College of Medical Genetics. Finally, we analyze how benefit is reflected in the public comments submitted in response to the ACMG report. Results show that benefit has been and remains a core consideration for screening decisions. Historically the focus has been on improved physical health as a result of medical treatment; however, in only 4 of the 78 conditions rated does newborn screening prevent all negative consequences. In fact the majority of both core conditions (51.7%) and secondary targets (87.5%) recommended in the ACMG report were rated as having treatments that prevented only some negative consequences. All conditions rated had perceived benefits for family and society, but currently no conditions are screened on the basis of family or societal benefits alone. No agreed-upon threshold exists for what would be considered meaningful benefit, and stakeholder groups differ in their perceptions of benefit. We conclude by suggesting several key research studies needed to further inform public policy. 相似文献
230.
Jozefowicz-Simbeni DM Israel N Braciszewski J Hobden K 《American journal of community psychology》2005,35(1-2):17-22
This article summarizes discussions that took place following Paul Toros presidential address for the Society for Community Research and Action (SCRA). Toro argued that community psychology and SCRA are big tents. He suggested growth through increasing the involvement of ethnic minorities, community practitioners, international colleagues, students and early career professionals and individuals from allied disciplines. Themes in the discussions included: the founding values of community psychology, diversity, and social action. Those present felt that the field was facing a mid-life crisis and needed to re-establish its identity. Newer professionals looked to their seasoned colleagues to help define and establish that identity, and involve them in the process. Respondents were supportive of increased involvement of individuals from oppressed groups and practitioners in SCRA. Less attention was paid to increasing the role of international colleagues, professionals from allied disciplines, and members of the community. 相似文献