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651.
Gerald G Kent John D Davis David A Shapiro 《Journal of experimental social psychology》1981,17(2):197-209
In a previous investigation, we demonstrated the role of questions as an instructional resource in the social construction of conversation by depriving conversationalists of their use. The resulting conversational structure, measured in terms of the ability of third parties to reconstruct the dialogues after they had been randomized, was impaired. The importance of culturally shared knowledge for the reconstruction (and by implication the construction) task was apparent in the superiority of British over Canadian subjects in reconstructing unconstrained British dialogues. The present study was concerned with the effects of privately shared knowledge on the construction of conversation. Conversational structure and the frequency of questions were greater in strangers' than in mutual acquaintances' unconstrained dialogues. Strangers' dialogues, but not those of mutual acquaintances, were disrupted under a ban on questions. The results were taken to indicate that strangers need to provide one another with continual instruction in how to proceed, whereas mutual acquaintances, in virtue of their privately shared social knowledge, can construct orderly dialogue with less moment-to-moment guidance. 相似文献
652.
S.P Marshall 《Journal of mathematical psychology》1981,23(2):134-152
This paper considers testing in which the goal is to minimize the number of test items required to establish a learner's state of ability. Focus is on optimal or near optimal selection over a well-defined universe of items or stimuli. Selection policies are determined for the case in which the items have hierarchical or partial hierarchical relationships. Derivation of an optimal policy rests upon techniques from dynamic programming. For situations in which an optimal policy may be too costly to compute, two heuristic approximations are offered. One heuristic counts the hypothetical estimates of ability that remain tenable following a response to each item and chooses the item that minimizes the expectation of that number. The other selects the item that maximizes the statistic of information. 相似文献
653.
654.
The frequency and type of disfluencies in the spontaneous speech of 15 people with Broca's aphasia and right hemiplegia was studied. Two aged-matched control groups (15 nonaphasic stroke patients with left hemiplegia and 15 normals) were also studied. The frequency of disfluencies in the speech of aphasics was three times greater than that in the speech of either control group. However, most of the disfluencies uttered by aphasics were of the types commonly found in speech of normals. 相似文献
655.
Are internal versus external attributions of responsibility for prior outcomes important determinants of subsequent performances? or is their effect limited to influencing the affective and evaluative experiences that are associated with the task outcomes? Recent theoretical statements appear to differ on this issue. The present study examined the question, while at the same time testing the influence of self-directed attention on the process under investigation. Subjects attempted a series of mazes in collaboration with an ostensible cosubject (actually a confederate). The pair experienced either three consecutive sucesses or three consecutive failures. Subjects were led to perceive the responsibility for these outcomes as residing primarily with themselves or primarily with their partner. Self-focus was manipulated (by a mirror) prior to attempting a fourth maze and completing a set of rating scales. Success-condition subjects performed better on the fourth maze in the mirror's presence than in its absence, whereas failure-condition subjects tended to perform more poorly in the mirror's presence than in its absence. The manipulation of internal versus external attributions did not influence behavior, but did influence subjects' affective and evaluative reactions to themselves and their partner. Discussion centers on the relationship between these findings and other recent findings in the areas of attribution and achievement-related behavior. 相似文献
656.
The purpose of this study was to develop and seek initial validation of a mental- health locus of control scale. Twenty-six mental-health professionals rated each of the 14 statements of a previously-designed mental-health service request form along a 5-point locus of control scale. Six of the 14 items met the study's criteria for inclusion in the mental-health locus of control scale. Discriminant validity of the scale was provided by a study demonstrating that psychotic patients were more external in their perceived locus of control than were a nonpsychotic patient comparison group. Other validation studies and research are suggested. 相似文献
657.
Because speech prosody is thought to be impaired in Broca's aphasia, we conducted three experiments using Broca's aphasics and nonneurological control subjects in order to determine to what extent this statement is accurate. Using three acoustic measures of speech prosody—sentence-final fundamental frequency (F0) fall, F0 declination, and sentence-final lengthening—we found that some aspects of prosody were spared while others were abnormal. All Broca's aphasics, regardless of degree of impairment, exhibited sentence-final F0 fall. F0 declination was present in simple sentences but was absent over longer domains; moreover, the amount of declination was correlated with the degree of linguistic impairment. Sentence-final lengthening was clearly absent in Broca's aphasia; in fact, sentence-terminal words were actually shorter than their sentence-initial and medial counterparts. 相似文献
658.
659.
Two patients with morbid ruminations and compulsive avoidance behavior were independently treated by the authors with exposure and response prevention strategies. The patients were quite different with respect to age (23 vs 58), occupational status (student vs civil servant) and length of disorder (2 vs 40 years), although their disorders were quite similar. The present report describes the patients and treatment procedures and reports on dramatic behavioral changes that occurred within brief time periods. 相似文献
660.