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81.
An experiment is described showing that learned helplessness deficits are produced by prior exposure to uncontrollable outcomes rather than perceived failure. Although the controllability manipulation did produce differences in perceived success or failure, similar differences were also induced by means of instructional feedback. These latter differences, within the controllable and uncontrollable groups, were not associated with poorer performance by subjects given failure feedback. Moreover, the instructional feedback did not influence subjects' perceptions of controllability or uncontrollability. The results confirm that helplessness deficits cannot be explained as reactions to task failure.This research was supported by Research Grant A28015473 from the Australian Research Grants Scheme.  相似文献   
82.
Two experiments were carried out to show that the constancy of Type II d’ in recall is not an artifact, but is due to finite-state processes as suggested by Bernbach (1967). The following conclusions were reached: (1) The constancy of Type II d’ is not an artifact due to the inclusion of intralist intrusions in the class of incorrect responses; (2) backward learning curves constructed from confidence ratings gave clear evidence of all-or-none recall; (3) recall appeared to be all or none whether the subjects learned by rote or with a mnemonic; (4) the discriminability index derived from Luce’s (1959) choice theory did not exhibit constancy over trials, unlike Type II d’ and despite the fact that backward rating curves indicated all-or-none processes.  相似文献   
83.
Weight and height data from two studies were recomputed, and original data were computed using a Weight Index formula that accounts for the interaction of actual weight/height changes in growing children and compares this ratio with that of normed weight/height ratios for equal-aged children. Recomputing the data of one study showed that the Weight Index is a more sensitive procedure for assessing long-term behavioral treatment of obesity for girls than weight alone. Recomputing the data of a second study showed that the Weight Index formula is consistent for boys and girls and is a more sensitive procedure for assessing long-term effects of a variety of medical treatments for obesity than the Ponderal Index or weight alone. Computation of the data for 17 “normal” children in a preschool class showed a zero Weight Index score before and after a six-month interval elapsed without treatment. The procedure may be useful in assessing ponderosity or anorexia over intervals of six months or more with growing children or difference between actual and normed weight over shorter intervals.  相似文献   
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A simple method for producing audio tapes with temporally synchronized messages is described. The duration and spacing of words can be precisely controlled. This method requires a minimum of elaborate equipment, yet synchronization is very accurate with highly intelligible speech.  相似文献   
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Despite significant advances over the past three decades in our understanding of the implicit dangers in ad hoc psychometric procedures, some important questions remain, particularly as regards the nature of the underlying reasoning process by which subjectively meaningful theoretical impressions are formulated and expressed. The present article seeks to address this issue, with particular attention being given to the distinction between demonstrative and dialectical reasoning. Evidence is offered to show that, at least under certain conditions, intuitive psychometricians formulate and express theoretical impressions on the basis of a reasoning process that is essentially dialectical in nature. Some major implications of this point of view for the study of personality theory are discussed. The limitations of the evidence presented, and the need for further research, are forgone.  相似文献   
89.
Two studies were conducted to determined the effects of specific learning centers on preschoolers' functional uses of language. In Study 1, preschoolers in three separate same-age classrooms (2-, 3-, and 5-year-olds) were observed on a time sampling scheduling during their free play periods for four weeks. Preschoolers' individual utterances were coded as serving one or more than one function; functions were defined following Halliday. The housekeeping and block centers tended to elicit the most individual and multifunctional utterances. The fantasy play and social interaction among children in these centers were thought to be responsible for this mature use of language.In Study 2, same-age and same-sex dyads from two age groups (4- and 5-year-olds) were observed in experimental settings playing with blocks alone and with dramatic props alone. Both contexts elicited a predominance of imaginative language, though the dramatic context elicited more imaginative language than the blocks. With age, children generated more individual functions and multifunctional utterances.  相似文献   
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Private secondary school students differing in achievement motivation took part in a learned helplessness experiment using a triadic design and noncontingent rewards. A clear learned helplessness effect was observed in both high and low achievement motivation groups. The findings confirmed those from an earlier study using younger subjects drawn from a lower socioeconomic background. However, the results of both experiments were quite different from those of another recently reported investigation using university students that found facilitation as well as an interaction between achievement motivation level and treatment (Jardine & Winefield, 1981). It is concluded that the development of learned helplessness probably depends on the kind of environment in which noncontingent outcomes are experienced.  相似文献   
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