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1.
Sleep plays an active role in memory consolidation. Because children with Down syndrome (DS) and Williams syndrome (WS) experience significant problems with sleep and also with learning, we predicted that sleep‐dependent memory consolidation would be impaired in these children when compared to typically developing (TD) children. This is the first study to provide a cross‐syndrome comparison of sleep‐dependent learning in school‐aged children. Children with DS (= 20) and WS (= 22) and TD children (= 33) were trained on the novel Animal Names task where they were taught pseudo‐words as the personal names of ten farm and domestic animals, e.g. Basco the cat, with the aid of animal picture flashcards. They were retested following counterbalanced retention intervals of wake and sleep. Overall, TD children remembered significantly more words than both the DS and WS groups. In addition, their performance improved following night‐time sleep, whereas performance over the wake retention interval remained stable, indicating an active role of sleep for memory consolidation. Task performance of children with DS did not significantly change following wake or sleep periods. However, children with DS who were initially trained in the morning continued to improve on the task at the following retests, so that performance on the final test was greater for children who had initially trained in the morning than those who trained in the evening. Children with WS improved on the task between training and the first retest, regardless of whether sleep or wake occurred during the retention interval. This suggests time‐dependent rather than sleep‐dependent learning in children with WS, or tiredness at the end of the first session and better performance once refreshed at the start of the second session, irrespective of the time of day. Contrary to expectations, sleep‐dependent learning was not related to baseline level of performance. The findings have significant implications for educational strategies, and suggest that children with DS should be taught more important or difficult information in the morning when they are better able to learn, whilst children with WS should be allowed a time delay between learning phases to allow for time‐dependent memory consolidation, and frequent breaks from learning so that they are refreshed and able to perform at their best.  相似文献   

2.
This study presents a field experiment to test the question: What are the individual characteristics that influence whether coaching is beneficial for people’s performance? We focus our attention on the Big Five personality traits, core self-evaluations, and goal orientation. Using a control group for comparison, coaching was provided to a sample of working adults (N = 84) and both self-ratings and supervisor-ratings of performance (N = 74) were measured over three time points. Our analysis indicates that individuals high in Openness, who avoid goal orientation and are low in core self-evaluations benefit the most from coaching. We contribute to the literatures on coaching effectiveness and the wider learning and development literatures by providing an empirically robust examination of the interaction between individual differences and coaching and the subsequent impact on performance. Furthermore, our findings suggest that coaching may be an effective development technique for individuals who tend to perform less well in other forms of instructional learning due to their individual characteristics.  相似文献   

3.
Comparing the variances of dependent groups   总被引:1,自引:0,他引:1  
Recently several new attempts have been made to find a robust method for comparing the variances ofJ dependent random variables. However, empirical studies have shown that all of these procedures can give unsatisfactory results. This paper examines several new procedures that are derived heuristically. One of these procedures was found to perform better than all of the robust procedures studied here, and so it is recommended for general use.The author would like to thank the reviewers for their very helpful comments on an earlier draft of this paper.  相似文献   

4.
An understudied issue in the goal priming literature is why the same prime can provoke different responses in different people. The current research sheds light on this issue by investigating whether an individual difference variable, core self-evaluations (CSE), accounts for different responses from the same prime. Based on the findings of experiments showing that individuals with high CSE have higher performance after consciously setting a task-related goal than individuals with lower CSE, two hypotheses were tested: (1) Individuals who score high on CSE perform better following a subconsciously primed goal for achievement than do individuals who score low on CSE, and (2) this effect is mediated by a self-set goal. Two laboratory experiments (n = 207, 191) and one field experiment (n = 62) provided support for the hypotheses. These findings suggest that personality variables such as the CSE can provide an explanation for the “many effects of the one prime problem”.  相似文献   

5.
The effect of a context-specific prime for cooperation on goal commitment and team performance were examined. In the first experiment, the participants (n = 139) performed the Lost on the Moon simulation (Hall & Watson, 1970) individually and as a team (n = 50). The teams were randomly assigned to a condition where they were assigned the same goal. They were then primed (n = 23) through a photograph of cooperation or to the control condition (n = 27). Consistent with NASA’s directions for performing the simulation, performance was measured by how well a team performed relative to the answers of experts, namely, staff at NASA. The results showed that a primed behavioural goal to cooperate has a positive effect on team performance. These results were replicated in a second and third experiment involving a social dilemma where both a pro-social, group-centric goal and a pro-self, egocentric goal could be self-set for the amount of points to make. Thus the positive effect of a goal primed for cooperation on a team’s performance was shown to be robust even when there was an explicit mixture of cooperative and competitive incentives. This finding was replicated in a third experiment with actual money. Consistent with goal setting theory, commitment to the team’s goal moderated the primed goal-performance relationship.  相似文献   

6.
Let r1 and r2 be two dependent estimates of Pearson's correlation. There is a substantial literature on testing H0 : ρ1 = ρ2, the hypothesis that the population correlation coefficients are equal. However, it is well known that Pearson's correlation is not robust. Even a single outlier can have a substantial impact on Pearson's correlation, resulting in a misleading understanding about the strength of the association among the bulk of the points. A way of mitigating this concern is to use a correlation coefficient that guards against outliers, many of which have been proposed. But apparently there are no results on how to compare dependent robust correlation coefficients when there is heteroscedasicity. Extant results suggest that a basic percentile bootstrap will perform reasonably well. This paper reports simulation results indicating the extent to which this is true when using Spearman's rho, a Winsorized correlation or a skipped correlation.  相似文献   

7.
Coordinating complex social and moral concerns when allocating resources is a key issue in late childhood and early adolescence. This study explored resource allocation in three goal contexts that required children to focus to differing degrees on moral and group concerns. Children (9–11-years, Mage = 9.84, n = 190) and adolescents (14–16-years, Mage = 14.92, n = 154) were informed their school peer group held an in-group norm (competition, cooperation). Participants allocated resources between their in-group and an outgroup within one of three goal contexts (prosocial, learning-focused, and group-focused). Participants allocated in favour of their in-group to achieve a prosocial goal but attenuated this when the goal was focused on learning and cooperation. Adolescents, more than children, reasoned about the goals of resource allocation to justify their decisions. From 9 years old, children begin to coordinate peer group norms and goal information when deciding how to allocate resources within intergroup contexts.  相似文献   

8.
This research revealed both similarities and striking differences in early language proficiency among infants from a broad range of advantaged and disadvantaged families. English‐learning infants (= 48) were followed longitudinally from 18 to 24 months, using real‐time measures of spoken language processing. The first goal was to track developmental changes in processing efficiency in relation to vocabulary learning in this diverse sample. The second goal was to examine differences in these crucial aspects of early language development in relation to family socioeconomic status (SES). The most important findings were that significant disparities in vocabulary and language processing efficiency were already evident at 18 months between infants from higher‐ and lower‐SES families, and by 24 months there was a 6‐month gap between SES groups in processing skills critical to language development.  相似文献   

9.
There is little research on the personalities and emotional stability of persons who report being bullied or witnessing bullying at work. Men and women (N = 247) from 19 to 64 years of age and in manual labour completed a questionnaire concerning the psychosocial work climate, bullying and personality. Three groups were defined: bullied (N = 14), witnesses (N = 31) and non-bullied respondents (N = 202). The Swedish universities Scale of Personality was used to assess personality traits related to the three major dimensions of neuroticism, extraversion, and aggressiveness. Bullied persons had higher scores on all six scales within the neuroticism dimension as well as higher irritability (aggressiveness dimension) and impulsiveness scores (extraversion dimension), when compared with their non-bullied work colleagues. To conclude, bullied persons display a self-image that is dominated by mistrust and embitterment as well as irritability and impulsiveness. Accordingly, when dealing with bullying at work, the need for ego-supportive actions should be considered in conjunction with more organisational, collective oriented action.  相似文献   

10.
Individual differences in goal engagement and goal disengagement processes have been demonstrated to be related to goal attainment, health, and emotional well-being. However, there is a dearth of studies on the developmental conditions of individual differences in these processes. Social learning processes contribute to the formation of individual dispositions even in adulthood. As one pathway of learning, we investigated observational learning of goal regulation processes in romantic relationships in two experimental studies. Study 1 (N = 67 couples, M = 32.65 years) replicated a previous finding that observing partners imitated their partner's goal regulation processes in the same task and extended it by showing transfer effects to another task. Study 2 (N = 60 couples, M = 25.9 years) demonstrated that—given a lack of praise of the modelled actions—partners still imitated goal regulation processes but to a smaller extent. These findings lend support for observational learning as a pathway to individual differences in the application of goal regulation processes. © 2020 The Authors. European Journal of Personality published by John Wiley & Sons Ltd on behalf of European Association of Personality Psychology  相似文献   

11.
To examine the adjustment of child-related goal appraisals during infertility treatment and whether such adjustment contributes to depressive symptoms 178 (86 men, 92 women; age for women M = 33.92, SD = 0.34, for men M = 35.68, SD = 0.45) patients at an Infertility Clinic filled in child-related goal appraisal questionnaires six times: (1) before starting the hormone injections, (2) before the oocytes were retrieved, (3) after embryo transfer, (4) the day when the pregnancy test was done, and (5) two and (6) six months after the infertility treatment. At the first and last measurement times they filled in questionnaire on depressive symptoms. Appraisals concerning child-related goal changed in tandem with the treatment result, and goal adjustment had an effect on depressive symptoms.  相似文献   

12.
ObjectivesRecent qualitative evidence suggests that two optimal psychological states (flow and clutch) underlie excellent performance in sport. That research further suggests that the type of goal pursued influences which state is experienced. This study aimed to examine the effects of goal types (i.e., open, specific, and do-your-best goals) on flow and clutch states during performance in a cognitive task, which was developed and has been used in sport. Secondary aims were to investigate the effects of goal types on objective and subjective performance, confidence, and perceived challenge.DesignThis study employed a repeated measure design (mixed model).MethodParticipants (N = 95; Mage = 24.89, SD = 9.27) were randomised to one of three goal conditions and asked to perform a Letter and Number Identification Task, which was repeated for six attempts.ResultsParticipants prescribed open or do-your-best goals experienced significantly higher levels of flow than those prescribed specific goals, who conversely experienced significantly higher levels of clutch states. Participants assigned specific goals performed significantly better than those prescribed open or do-your-best goals. Those assigned open or do-your-best-goals reported greater perceived performance, higher confidence, and feeling more optimally challenged.ConclusionsThese findings provide experimental support for the role of goal types in determining flow and clutch states, and further understanding of the psychological effects of these goal types. Implications are discussed, and recommendations are made for future research into the role of goals in experiencing flow and clutch states in sport and exercise.  相似文献   

13.
Integrating goal orientation theory with interactionist approaches, this experimental study (N = 104) tested the unique and interactive effects of individual differences in goal orientations and situational goal orientation inducements on performance trajectories during skill acquisition. Results indicated that learning goal orientation predicted performance trajectories more positively when coupled with one situational inducement that captures a complementary feature (a performance, as opposed to a learning, goal frame), and when jointed with a situational inducement that captures a supplementary feature (self-referenced vs. normative-based performance feedback). There was also a complementary-like interaction between the two situational inducements, such that a learning goal frame led to more positive performance trajectories when coupled with normative, as opposed to self-referent, feedback. Implications for the motivation and skill acquisition literatures are discussed.  相似文献   

14.
We used two simple unsupervised machine learning techniques to identify differential trajectories of change in children who undergo intensive working memory (WM) training. We used self‐organizing maps (SOMs)—a type of simple artificial neural network—to represent multivariate cognitive training data, and then tested whether the way tasks are represented changed as a result of training. The patterns of change we observed in the SOM weight matrices implied that the processes drawn upon to perform WM tasks changed following training. This was then combined with K‐means clustering to identify distinct groups of children who respond to the training in different ways. Firstly, the K‐means clustering was applied to an independent large sample (N = 616, Mage = 9.16 years, range = 5.16–17.91 years) to identify subgroups. We then allocated children who had been through cognitive training (N = 179, Mage = 9.00 years, range = 7.08–11.50 years) to these same four subgroups, both before and after their training. In doing so, we were able to map their improvement trajectories. Scores on a separate measure of fluid intelligence were predictive of a child's improvement trajectory. This paper provides an alternative approach to analysing cognitive training data that go beyond considering changes in individual tasks. This proof‐of‐principle demonstrates a potentially powerful way of distinguishing task‐specific from domain‐general changes following training and of establishing different profiles of response to training.  相似文献   

15.
It is well established that goals energize and direct behaviour across the lifespan. To better understand how goals are embedded in people's lives across adulthood, the present research examined life goals' content (health, personal growth, prosocial engagement, social relations, status, work), dynamics (interplay between goal importance and goal attainability), and outcomes (subjective well‐being) from a developmental perspective. We argue that people rate those goals as important and attainable that enable them to master developmental tasks, that they adapt their goals to personal capacities, and that goals predict subjective well‐being after 2 and 4 years. The sample included 973 individuals (18–92 years old, M = 43.00 years) of whom 637 participated 2 years later and 573 participated 4 years later. Goal importance and well‐being were assessed at all occasions and goal attainability at the first two occasions. Results indicated that age was negatively associated with importance and attainability of personal‐growth, status, and work goals but positively associated with importance and attainability of prosocial‐engagement goals. The association between goal importance and attainability was largely bidirectional over time; and goal attainability, rather than goal importance, was positively linked to later well‐being. Implications of these findings are discussed in light of adult lifespan development. © 2019 European Association of Personality Psychology  相似文献   

16.
This 8-week longitudinal experience sampling study with N = 346 participants (n = 242 completers) of a high-intensity interval training program explored how goal focus (i.e., a focus on the process vs. outcome of goal pursuit) is related to procrastination and successful goal pursuit. Specifically, the study investigated the association between goal focus and participants' adherence to their workout plans (i.e., procrastination), their immediate experience during the workout (e.g., pleasantness), and their intentions to work out when they were procrastinating. Moreover, the study examined how process and outcome focus are linked to overall goal achievement, workout satisfaction, and objective fitness gains. Converging with previous research, results suggest that adopting a process focus is adaptive. In addition, the analyses revealed some positive relationships between outcome focus and immediate indicators of successful goal pursuit. However, in contrast to process focus, outcome focus was not related to the overall measures and even seemed maladaptive once people were procrastinating.  相似文献   

17.
For each intermediate propositional logicJ, J * denotes the least predicate extension ofJ. By the method of canonical models, the strongly Kripke completeness ofJ *+D(=x(p(x)q)xp(x)q) is shown in some cases including:
1.  J is tabular,
2.  J is a subframe logic.
A variant of Zakharyashchev's canonical formulas for intermediate logics is introduced to prove the second case.  相似文献   

18.
In a previous randomized controlled trial (RCT), short‐term efficacy of family constellation seminars (FCSs) in a general population sample was demonstrated. In this article, we examined mid‐ and long‐term stability of these effects. Participants were 104 adults (M = 47 years; SD = 9; 84% female) who were part of the intervention group in the original RCT (3‐day FCS; 64 active participants and 40 observing participants). FCSs were carried out according to manuals. It was predicted that FCSs would improve psychological functioning (Outcome Questionnaire OQ‐45.2) at 8‐ and 12‐month follow‐up. Additionally, we assessed the effects of FCSs on psychological distress, motivational incongruence, individuals’ experience in their personal social systems, and overall goal attainment. Participants yielded significant improvement in psychological functioning (d = 0.41 at 8‐month follow‐up, p = .000; d = 0.40 at 12‐month follow‐up, p = .000). Results were confirmed for psychological distress, motivational incongruence, the participants’ experience in their personal social systems, and overall goal attainment. No adverse events were reported. This study provides first evidence for the mid‐ and long‐term efficacy of FCSs in a nonclinical population. The implications of the findings are discussed.  相似文献   

19.
20.
Mathieu Roy  Lise Gauvin   《Body image》2009,6(4):277-284
This paper pursues two objectives: (1) to estimate proportions of adolescents with a weight goal that matched and mismatched weight status, and (2) to identify correlates of a mismatched weight goal. Data were from a representative population-based sample of adolescents (n = 2346, 51% female; 91.5% complete data). Results showed that 69% of adolescents had a weight goal that matched weight status whereas 31% had a weight goal that mismatched weight status. Body dissatisfaction was a significant predictor of having a mismatched weight goal for both sexes while elevated psychological distress was a predictor among girls. Being body dissatisfied mediated the association between psychological distress and having a mismatched weight goal among girls. Casting weight goal as a function of weight status may allow for a better understanding of overall weight management strategies.  相似文献   

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