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221.
Jaffee SR Belsky J Harrington H Caspi A Moffitt TE 《Journal of abnormal psychology》2006,115(2):309-319
Individuals with early-emerging conduct problems are likely to become parents who expose their children to considerable adversity. The current study tested the specificity of and alternative explanations for this trajectory. The sample included 246 members of a prospective, 30-year cohort study and their 3-year-old children. Parents who had a history of conduct disorder were specifically at elevated risk for socioeconomic disadvantage and relationship violence, but suboptimal parenting and offspring temperament problems were common to parents with any history of disorder. Recurrent disorder, comorbidity, and adversity in the family of origin did not fully account for these findings. The cumulative consequences of early-onset conduct disorder and assortative mating for antisocial behavior may explain the long-term effects of conduct disorder on young adult functioning. 相似文献
222.
What attributions must any actor make to an other in order to engage in face-to-face interaction with that other? Edmund Husserl's use of “analogues” suggests that actors use their own experiences of themselves as a starting pointin making such attributions. Alfred Schutz and Erving Goffman claim that for face-to-face interaction to occur, an other must be recognized as copresent and reciprocity must be established. I assert here that the means for determining that these conditions have been met will vary. I explore a varietyof actors and in particular their differing identifications of interactionally available others and I take as problematicthe establishment of co-presence and reciprocity. Taking others to be “analogues of ourselves” serves as a useful starting point, but worthy of detailed analysis is howand with whom an actor draws the analogy, under what circumstances it comes in for revision, and the interactional consequences of the decisions made. 相似文献
223.
Frances Swineford 《Psychometrika》1941,6(6):375-382
Bi-factor and multiple-factor analyses of the same data are compared in two respects. First, two criteria are suggested for determining when the factorization is adequate. This problem being more acute for the centroid method than for the bi-factor method, the latter is used primarily for comparison only. It is shown also that the omission from the simple structure of entries smaller than .10 yields a pattern which is a poorer fit to the original correlations than is the bi-factor pattern. Second, the second-order general factor obtained from the intercorrelations of the primaries is found to be highly correlated with the general factor of the bi-factor pattern. 相似文献
224.
Jeffrey N. Weatherly Frances K. McSweeney Samantha Swindell 《Learning and motivation》1998,29(4):444-460
The study investigates the idea that within-session changes in responding are produced by arousal and satiation. General activity, measured by the displacement of floor panels, was used as an index of these variables. In Experiment 1, pigeons pecked a key on a simple variable-interval schedule and general activity was also recorded. In Experiment 2, pigeons received response-independent reinforcers. In Experiment 3, the pigeons' general activity was reinforced on a variable-interval schedule. Although significant within-session changes in operant key pecking were observed in Experiment 1, within-session changes in general activity were seldom observed in either Experiment 1 or Experiment 2. Significant within-session changes in general activity were observed in Experiment 3, when activity was the operant. The present results can potentially be explained by arousal and satiation. However, the predictive power of this explanation is severely limited. Regardless of whether one accepts arousal and satiation as the theoretical explanation for within-session changes in responding, the present results suggest that aspects of the response–reinforcer relation may determine the within-session pattern of responding. 相似文献
225.
226.
Frances K. Mcsweeney Samantha Swindell Jeffrey N. Weatherly 《Learning and motivation》1996,27(4):408-427
Rats pressed levers for food delivered by several fixed interval schedules. A drinking spout or running wheel was also available during some conditions, but not during others. The rate of lever pressing, drinking and running often changed within experimental sessions. The within-session patterns of lever pressing did not differ when drinking or running was available and when it was not. The correlation between the amount of lever pressing and the amount of drinking or running at a particular time in the session was inconsistently positive or negative. Finding within-session changes in responding for adjunctive behaviors implies that the factors that produce these changes are present for both adjunctive and instrumental behavior. Finding inconsistent correlations between instrumental responding and adjunctive behaviors questions arousal and interference from adjunctive behaviors as explanations for within-session changes in instrumental responding. 相似文献
227.
GESTURE, SPEECH, AND LEXICAL ACCESS: 总被引:1,自引:0,他引:1
Abstract— In a within-subjects design that varied whether speakers were allowed to gesture and the difficulty of lexical access, speakers were videotaped as they described animated action cartoons to a listener. When speakers were permitted to gesture, they gestured more often during phrases with spatial content than during phrases with other content. Speech with spatial content was less fluent when speakers could not gesture than when they could gesture, speech with nonspatial content was not affected by gesture condition. Preventing gesturing increased the relative frequency of nonjuncture filled pauses in speech with spatial content, but not in speech with other content. Overall, the effects of preventing speakers from gesturing resembled those of increasing the difficulty of lexical access by other means, except that the effects of gesture restriction were specific to speech with spatial content. The findings support the hypothesis that gestural accompaniments to spontaneous speech can facilitate access to the mental lexicon 相似文献
228.
Frances K. McSweeney Jeffrey N. Weatherly Samantha Swindell 《Psychonomic bulletin & review》1996,3(3):372-375
Large and systematic changes in response rates often occur within sessions during operant conditioning procedures. In the present experiment, we asked whether the value of the reinforcer that supports responding also changes within sessions. Pigeons pecked a key for mixed grain available throughout the session. Occasionally, wheat was also provided for pecking a second key. The ratio of the rates of responding for mixed grain and wheat, a frequently used measure of relative reinforcer value, changed significantly within sessions when mixed grain was provided at high, but not at low, rates. Habituation to the reinforcer provides the most likely explanation for these changes in reinforcer value. Eventually, habituation may provide a unified explanation for the within-session changes in behavior that occur when many species of subjects respond on a wide variety of tasks. 相似文献
229.
Dean X. Parmelee M.D. Robert Cohen Ph.D. B. A. Mary Nemil Al M. Best Ph.D. Sharon Cassell R.R.A. Frances Dyson A.R.T. 《Journal of child and family studies》1995,4(1):43-55
Ninety children and adolescents admitted to two state-operated psychiatric hospitals were followed from the time of their admission through one year post discharge. Data were collected from the children and adolescents, their families and clinicians at three intervals (during hospitalization, three months post discharge, and one year post discharge) to identify demographic, clinical, and service history characteristics of the children and adolescents, as well as to track their placement and other dispositional status following discharge from the hospital. The data indicated that the children and adolescents were seriously emotionally and behaviorally disturbed, came from families which were economically disadvantaged, and did not typically live in two-parent families. While the majority of the children and adolescents received recommended aftercare services during the three months following discharge from the hospital, there was a decline in placement stability for the children at the one-year post discharge followup. The most important predictors of successful outcome at discharge were living with a family member at the time of hospitalization and the participation of the family in the treatment planning during hospitalization. 相似文献
230.
An analysis was carried out of final-year undergraduate responses to innovations in a seminar class of 54 students to determine whether positive learning outcomes in large classes can be made possible by increasing the range of work in which students are involved. Relatively straightforward adjustments to approach and style produced positive learning outcomes, enabling students to acquire enthusiastically and effectively not only subject knowledge, but also a range of transferable skills giving them better preparation for the world of work. While course management of this kind requires a redirection of the time and effort of the lecturer, and therefore raises issues of professional development needs, it is not subject-specific and should be readily transferable. 相似文献