Xingli Zhang

Sustained Attention in Intellectually Gifted Children Assessed Using a Continuous Performance Test

This study aimed to investigate two aspects of sustained attention in intellectually gifted children: first, the differences to intellectually average children; second, the differences between receiving standard education and enrichment education. Study 1 compared sustained attention between 24 intellectually gifted and 26 intellectually average children. The results showed that intellectually gifted children had better performance than their average peers, not only for the whole task but also on all indices. Study 2 compared sustained attention between 24 intellectually gifted children who received standard education and 24 intellectually gifted children who received enrichment education. The results showed that intellectually gifted children who received enrichment education performed better than those who received standard education. These findings are consistent with previous work and provide support for the implementation of enrichment education for intellectually gifted children.

Understanding the Impact of Trauma Exposure on Posttraumatic Stress Symptomatology: A Structural Equation Modeling Approach.

The objective of this study was to investigate the impact of trauma exposure on the posttraumatic stress symptomatology (PTSS) of children who resided near the epicenter of the 2008 Wenchuan earthquake. The mechanisms of this impact were explored via structural equation models with self-esteem and coping strategies included as mediators. The findings suggested that the effect of trauma exposure was partially mediated by self-esteem, which subsequently affected coping strategies and finally determined PTSS. These results imply that self-esteem and coping strategies may impact childrens resilience to trauma exposure.

Inattentional Blindness in 9- to 10-Year-Old Intellectually Gifted Children:

Researchers suggest that while intellectually gifted children might not always display adequate focus on their general life, they perform very well on experimental attentional tasks. The current study used inattentional blindness (IB) paradigm to understand better the attentional abilities of intellectually gifted children. Specifically, we examined whether intellectually gifted children were more able to avoid IB while performing well on certain attentional tasks. An experiment was carried out that involved 44 intellectually gifted and 45 average children. Results showed that intellectually gifted children, whose IB rate was 18.6%, were less susceptible to IB than average children, whose IB rate was 46.5%, χ2(1) = 7.626, p = .006. Intellectually gifted children performed better on the primary attentional tasks than average children when unexpected stimuli occurred. Findings suggest that intellectually gifted children are more likely to maintain attention on current task but are more prone to process additional stimuli. Overall, the present study argues that general intelligence may affect IB.

A comparison between the effectiveness of PBL and LBL on improving problem-solving abilities of medical students using questioning

Abstract In daily patient-history taking and diagnosis practice, doctors ask questions to gather information from patients and narrow down diagnostic hypotheses. Training medical students to be efficient problem solvers through the use of questioning is therefore important. In this study, the effectiveness of problem-based learning (PBL) and lecture-based learning in improving the questioning abilities of medical students (N = 104) was assessed by a modified 20-question task. In this task, the participants were asked to identify target pictures by asking questions, the problem-solving process of which resembles that of the diagnosis scenario. Moreover, this task requires no medical knowledge, and therefore allows knowledge-irrelevant questioning abilities to be assessed independently. The results show that PBL students generally ask more efficient questions and use fewer questions to complete the task. This finding suggests that PBL curricula may help improve the questioning strategies of medical students and help them diagnose more efficiently in future diagnosis practice.

The relationship between fluid intelligence and sustained inattentional blindness in 7-to-14-year-old children

Previous researches have shown that people with higher fluid intelligence are more likely to detect the unexpected stimuli. The current study systematically explored the relationship between fluid intelligence and sustained inattentional blindness in children. In Experiment 1, we measured one hundred and seventy-nine 7-to-14-year-old childrens fluid intelligence and sustained inattentional blindness. The results showed that fluid intelligence was negatively related to sustained inattentional blindness only in 7-to-8-year-old children. In Experiment 2, we explored sustained inattentional blindness in sixty children with high Ravens scores. We found that compared with children who have average Ravens scores aged 11-to-12 years old, children with high Ravens scores were unable to better avoid sustained inattentional blindness. In general, this research implies that the relation between fluid intelligence and sustained inattentional blindness is weak. Fluid intelligence could predict sustained inattentional blindness only when children do not have enough perceptual capacities to complete the primary task.

Development of visual sustained attention from middle childhood to young adulthood

The Continuous Performance Test (CPT) is the most popular measure of sustained attention and vigilance. In the present study, the CPT was used to assess the visual sustained attention among 97 subjects aged 7-20 years old. The development trajectory of visual sustained attention was explored. Significant age effect was found on the hit rate, false alarm, sensitivity, and response criterion. The results revealed that 14-16-year-old adolescents may have reached a similar level of sustained attention with adults. The study makes a worthwhile contribution to the literature on the development of attention.

The relationship between teacher self-concept, teacher efficacy and burnout

ABSTRACT Teacher self-concept and efficacy have been investigated with burnout separately, while the two self-beliefs might work together to impact burnout. Guided by a model of the cyclical nature of teacher efficacy, we aimed to extend previous work on self-perceived predictors of teacher burnout by simultaneously investigating teacher self-concept and efficacy to detect the possibility of teacher efficacy being a mediator between teacher self-concept and burnout as well as whether such relationship remains constant across all groups of teachers with different gender and teaching experience. A sample of 1892 teachers across seven Chinese geographical regions completed a self-reported questionnaire addressing self-concept, efficacy, burnout and demographic variables. Structural equation modelling indicated that teacher self-concept influenced the burnout dimensions of emotional exhaustion, depersonalisation and reduced personal accomplishment via teacher efficacy. Further multi-group analysis suggested that this mechanism worked equally across different gender and teaching experience groups. With a non-western teacher sample, teacher efficacy was found to work as a mediator between teacher self-concept and burnout. The finding especially contributes to the knowledge in the teacher efficacy literature. The integrated relationship should be further explored in other cultures.

Sustained Inattentional Blindness Does Not Always Decrease With Age

Children usually miss additional information when they focus on objects or events. This common phenomenon is termed as inattentional blindness. To explore the age-related degree of this phenomenon, we applied a motion task to study the developmental difference of inattentional blindness. A group of 7-to-14-year-old children and adults participated in Experiment 1. The results showed that there was no significant developmental difference in sustained inattentional blindness. Considering that young children’s performance on the primary task was poor, we hypothesized that the difficulty of the primary task may contribute to the negative findings. Therefore, we decreased the difficulty of the primary task in Experiment 2. Still, the developmental difference in inattentional blindness rates was absent. Overall, current results implied that the ability of a person to detect an unexpected moving stimuli does not always increase with age. The age-related inattentional blindness seems highly dependent on tasks.

The Effect of Item Similarity and Response Competition Manipulations on Collaborative Inhibition in Group Recall

Collaborative inhibition refers to when people working together remember less than their predicted potential. The most common explanation for this effect is the retrieval-disruption hypothesis during collaborative recall. However, several recent studies have obtained conflicting results concerning this hypothesis. In the current study, item similarity was manipulated in Experiment 1 by requiring participants to study overlapping or non-overlapping unrelated wordlists. The unstructured instructions were then manipulated during a turn-taking recall task between conditions. The results showed that collaborative inhibition occurred for both overlapping and non-overlapping conditions. Subsequently, response competition during collaborative recall, in addition to item similarity, was manipulated in Experiment 2, and the results showed that when collaborative group members were instructed to recall in turn and monitor their partner’s recall (the medium- and high-response-competition conditions), collaborative inhibition occurred. However, no such effect was shown when collaborative group members were instructed not to communicate with each other, but to simply recall in turn while in a group (low-response-competition condition). Together, these results suggest that the conflicts between the findings of the aforementioned studies were probably caused by differing instructions, which induced response competition in collaborative settings. Aside from retrieval-disruption, other possible mechanisms underlying collaborative inhibition were also discussed.

Clustering Strategy in Intellectually Gifted Children: Assessment Using a Collaborative Recall Task

This study examined three aspects of the clustering strategy used by participants: the differences of clustering strategy between intellectually gifted and average children; the relationship between clustering strategy and recall performance in intellectually gifted and average children; and the differences in recall performance on collaborative recall task of intellectually gifted and average children. Thirty-eight intellectually gifted and 44 intellectually average children were recruited, and their collaborative and individual recall performances were tested. The results showed that intellectually gifted children had better clustering strategy than their peers when adjusted ratio of clustering scores were calculated (p < .01); clustering strategy positively correlated with recall performance in intellectually average children (p < .05), while no such correlation was found in intellectually gifted children (p = .95); there was no collaborative inhibition in the gifted group (p = .82). These findings partly resolve the conflicts in individual research and expand on the conclusions regarding collaborative memory.