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271.
Twelve subjects provided shape and orientation judgments for a set of projectively equivalent, variously rotated rectangles under three viewing conditions—monoptic, dichoptic, and binocular—with and without the presence of a pattern mask. In the absence of the mask, partial constancy was exhibited under the first two conditions and near perfect constancy under the binocular condition. Orientation was discriminated. Presence of the mask produced projective shape matching and diminished orientation discrimination. It is argued that the site of masking was postchiasmal, and the results are related to previous work with pattern masking of projectively equivalent ellipses. 相似文献
272.
J A Kelso E Cook M E Olson W Epstein 《Journal of experimental psychology. Human perception and performance》1975,1(3):237-245
Experimental subjects were exposed to prism-induced visual displacement of a target whose location was correctly given by proprioceptive-kinesthetic information. Control subjects were exposed alternately to visual displacement or proprioceptive-kinesthetic location information. During the adaptation period, experimental subjects in the visual attention condition performed a localization task that directed them to attend selectively to the visual modality; experimental subjects in the proprioceptive attention condition attended selectively to the proprioceptive modaltiy; control subjects performed the task on the basis of the available modality. Measures of adaptation and aftereffect were secured separately in each of the two modalities. These confirmed the predictions that the shifts in the experimental conditions would be confirmed to localization tests dependent on the unattended modality and that control subjects would not exhibit adaptation. We proposed that allocation of attention determines situational dominance and that dominance determines the locus of adaptation. The findings were compared to those reported by Canon (1970) and were applied to a reassessment of the "visual capture" phenomenon. 相似文献
273.
Colleen R. McGowan Cynthia M. Bulik Leonard H. Epstein David J. Kupfer Robert J. Robertson 《Journal of psychopathology and behavioral assessment》1984,6(1):51-57
The relationship between activity counts from the large-scale integrated sensor (LSI), placed at the hip and ankle, and heart rate-estimated energy expenditure was examined in three nonobese males during three conditions: normal morning activities, a 1-mi walk, and a 2-mi walk. Results showed that estimated caloric expenditure was related to activity counts for both monitoring placements, with correlations between counts and energy expenditure exceedingr=.90. These results show that energy expenditure in the activities sampled can be reliably estimated using activity monitors.This research was supported in part by a grant provided by The John D. and Catherine T. MacArthur Foundation Research Network on the Psychobiology of Depression, Clinical Research Center Grant 5-30915 from the NIMH, and Grant HD 16411 from the NICHD awarded to Dr. Epstein. 相似文献
274.
Seymour Epstein 《Journal of personality》1983,51(3):360-392
Failure to appreciate the role that aggregation plays in increasing reliability and validity and in establishing the range of generalization of findings has resulted in misunderstandings about the stability of behavior across time and situations, and in the conduct of experiments that produce results that tend to be neither generalizable nor replicable. Appropriate aggregation can reduce error variance associated with the unrepresentativeness of individual stimuli, situations, occasions, judges, items of behavior, and subjects. Inappropriate aggregation can result not only in a loss of information but also in a reduction in reliability as well as validity. Different approaches to prediction with single items of behavior are discussed, and it is concluded that single items tend to be too unreliable and too narrow in scope to measure broad dispositions such as traits. A major emphasis is that behavior is often so highly situationally specific that unless this is taken into account by procedures such as aggregation over situations and/or occasions, or by the investigation of events that are so highly ego-involving that experimental effects dominate situation-ally unique effects, results will tend to be unreplicable or ungeneralizable, no matter what their level of statistical significance. 相似文献
275.
276.
277.
William Epstein 《Quarterly journal of experimental psychology (2006)》1967,19(4):341-343
An experiment was designed to determine whether, in the absence of distance-cues, the perceived distance of an object is regulated by the imagined space in which the object is located. Judgements of distance and size were obtained in a completely reduced situation. Preceding these judgements, the subject engaged in 5 min. of visual exploration of the interior of an oblong box. The length of the box differed (3, 6 or 9 ft.) for different groups of subjects. The different pre-exposure conditions were expected to produce diffrences in the dimensions of the imagined space that the subject introduced in the subsequent test session. These differences in imagined space should lead to differences in the perceived distance of a single object located at a constant distance. Significant differences were obtained in the expected direction. In addition, judgements of the size of the standard tended to co-vary positively with the distance-judgments, suggesting that the effect of imagined space on judged distance was not simply the product of experimental biasing of the response system. Some methodological and theoretical implications of the findings are considered. 相似文献
278.
279.
Michael H. Epstein Madhavi Jayanthi Janet McKelvey Erin Frankenberry Ron Hardy Kathy Dennis Karl Dennis 《Journal of child and family studies》1998,7(2):161-170
Within the past decade, the wraparound approach has gained significant popularity in providing services to children with challenging social and family needs. While a plethora of wraparound programs have been developed and studies have been conducted to assess their effectiveness, the need to develop instruments that measure the implementation of wraparound services is clear. The purpose of the present study was to evaluate the reliability of a scale that measures wraparound services. In this study, the Wraparound Observation Form (WOF), was developed to evaluate the implementation of the wraparound process in treatment planning meetings. The WOF includes 34 closed-ended items that requires the respondent to note the occurrence or non-occurrence of specific events or behaviors at treatment planning meetings. In the present study, two data collectors attended planning meetings and independently completed the WOF. The inter-rater reliability was 95%. The WOF appears to be a reliable instrument and be appropriate in evaluating wraparound services. 相似文献
280.
Douglas Cullinan Ed.D. Michael H. Epstein Ed.D. Kevin P. Quinn Ph.D. 《Journal of child and family studies》1996,5(3):299-321
We examined interrelationships among personal, family, and prior service utilization data collected on young people selected to participate in a Chicago suburban area system of care, with a detailed consideration of a subset of 176 White participants aged 9–20 years. Data obtained through a review of archival information and then analyzed included WISC IQ grade retention, medication status, DSM diagnostic group, adjudication, marital status of parents, living situation before selection, maternal employment, public assistance status, family risk status, and placement history. Results showed that IQ and specific DSM diagnostic category were not important correlates of personal, family, or placement variables, although having a DSM diagnosis of any kind was. Family risk factors, including family history of mental illness, substance abuse, criminal conviction, and violence in the family, were related to other family variables, primarily. Adjudication and prescribed medication appeared to have been alternative responses to these young people's problems. A cluster analysis of these system of care participants' placement histories indicated five clusters characterized by varied personal and family correlates, as well as different patterns of placement usage. 相似文献