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911.
Keith E Stanovich Anne E Cunningham Barbara B Cramer 《Journal of experimental child psychology》1984,38(2):175-190
Ten different phonological awareness tasks were administered to a group of kindergarten children whose reading ability was assessed 1 year later. The extraneous cognitive requirements inherent in the tasks varied widely. The children's performance on three tasks that involved a rhyming response was at ceiling, and these tasks did not correlate with subsequent reading progress. The other seven measures were all moderately related to later reading ability and, employed in sets, were very strong predictors. The relative predictive accuracy of the phonological tasks was equal to or better than more global measures of cognitive skills such as an intelligence test and a reading readiness test. The phonological tasks had a large amount of common variance. Factor analysis revealed only one factor on which all the nonrhyming phonological tasks loaded highly. The results bolster the construct validity of phonological awareness, indicate considerable comparability and interchangeability among the tasks used to measure the construct, and are encouraging as regards the possible use of such tasks in predictive test batteries. 相似文献
912.
Mitchell Rabinowitz 《Journal of experimental child psychology》1984,38(2):338-351
Second and fifth graders memorized each of two lists of words that differed in category representativeness. In addition, they received one of three memory instructions: standard free recall, repetition, or categorial processing. Recall performance was about equal for standard vs repetition, and both were lower than category processing, especially with the highly representative items. Age did not enter this interaction, so it is concluded that at both age levels, the accessibility of categorial information influences children's use of it. This suggests multiple types of possible production deficiencies. 相似文献
913.
914.
Bruce Bloxom 《Journal of mathematical psychology》1984,28(4):401-420
The hazard function of a response time distribution describes the temporal dimension of a response process and completely characterizes the distribution. The function can be estimated by a quadratic spline which is constrained to have one of a number of simple functional forms. The estimator can also be employed when the response time is an unobserved component in a parallel or serial pair of processes. 相似文献
915.
W.H. Moore 《Journal of Fluency Disorders》1984,9(2):143-162
A single-subject “double-reversal” experimental design was used to investigate the use of electromyographic (EMG) biofeedback on the dysfluent behaviors of a right-handed male stutterer. A systematic decrease in EMG amplitude accompanied a progressive approximation of increased verbal complexity resulting in increased fluent behavior. Electroencephalographic (EEG) alpha data (8–12 Hz) gathered during baseline and pre- and post- treatment sessions appeared to co-vary with changes in fluency with right hemispheric suppression associated with greater dysfluencies and left hemispheric alpha suppression with decreased dysfluencies. The results are discussed relative to stutterer's adoption of differing behavioral production strategies for fluent speech that are associated with hemispheric information processing strategies. 相似文献
916.
917.
Right-handed adults were asked to identify bilaterally presented linguistic stimuli under three experimental conditions. In Condition A, stimuli were three-letter pronounceable nonwords (such as TUP), and subjects were asked to report them by naming them. In Condition B, stimuli were three-letter pronounceable nonwords, and subjects were asked to report them as strings of letters. In Condition C, stimuli were more or less unpronounceable letter strings (such as UTP) created by rearranging the letters of pronounceable nonwords, and subjects reported them as strings of letters. Pronounceable nonwords were found to be better identified from the right visual hemifield irrespective of the way in which they were reported. Unpronounceable letter strings did not produce any visual hemifield difference. Nonwords are of interest because they can be seen as potential words that lack both specific semantic properties and entries in the subject's internal lexicon. The results of the experiment are consistent with the view that both the left and right cerebral hemispheres are able to identify letters but the left hemisphere is more sensitive to the pronounceability of the nonwords. This may happen either because the left hemisphere can make better use of resemblances to real words or because it has access to spelling to sound correspondence rules. 相似文献
918.
Dichotic listening research with children has continued to be prevalent although numerous authors have described both theoretical and methodological limitations with traditional dichotic listening free-recall paradigms. The present research adds to this growing skepticism by reanalyzing two major longitudinal studies of children's ear asymmetries. These two studies, based in different countries (United States, Holland), utilized highly similar paradigms (free-recall digits), subjects (males), and age levels (kindergarten and second and fifth grade). The questions of ear advantage development, patterns of ear advantages, and the relationship between dichotic listening performance and reading skills are addressed from the multiple statistical methodologies represented in the literature. From these analyses, support for all of the major hypotheses regarding the developmental patterns of dichotic listening performances could be obtained from the same data samples. The use of traditional free-recall dichotic listening paradigms are not recommended for use with children. The implications for future research are discussed. 相似文献
919.
Maureen W Lovett 《Brain and language》1984,22(1):67-91
Children referred with specific reading dysfunction were subtyped as accuracy disabled or rate disabled according to criteria developed from an information processing model of reading skill. Multiple measures of oral and written language development were compared for two subtyped samples matched on age, sex, and IQ. The two samples were comparable in reading fluency, reading comprehension, word knowledge, and word retrieval functions. Accuracy disabled readers demonstrated inferior decoding and spelling skills. The accuracy disabled sample proved deficient in their understanding of oral language structure and in their ability to associate unfamiliar pseudowords and novel symbols in a task designed to simulate some of the learning involved in initial reading acquisition. It was suggested that these two samples of disabled readers may be best described with respect to their relative standing along a theoretical continuum of normal reading development. 相似文献
920.
The pantomimic performances of a typical Broca's (nonfluent) and Wernicke's (fluent) aphasic were compared with each other and with four normal control subjects on a simple task of nonverbal referential communication. Both aphasic subjects demonstrated only about 50% accuracy in their pantomimic communication. Also, measures were obtained of the motoric fluency of the pantomimes of all subjects and comparisons were made between the fluent and nonfluent aphasics. These measures demonstrated distinct differences in the fluency patterns of the pantomimes of the two aphasic subjects similar to the differences in speech fluency which distinguish and characterize these two types of aphasia; that is, the fluent aphasic pantomimed fluently and like the control subjects and the nonfluent aphasic pantomimed nonfluently. The quantitative and qualitative similarities in the fluency patterns of the speech and the pantomimic behaviors of the aphasic subjects are discussed in terms of their implications for a definition of aphasia. 相似文献