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1.
The possible role of eyespot patterns in predator recognition by paradise fish was examined using a passive avoidance conditioning technique with various dummies or live goldfish. It was found that a low-intensity shock, although clearly uncomfortable, elicited exploratory behavior in the fish and that observable learning did not occur. However, if the paradise fish was shocked in the presence of a live goldfish or various fish dummies, exploration diminished and avoidance learning was detected. This was characterized by a considerable increase in latency to enter the shocked compartment. The most effective dummies were those with two laterally arranged eye-like spots. The possible role of species-specific key stimuli in avoidance learning and organizing defensive behavior of the paradise fish is discussed.  相似文献   

2.
The objective of this study was to investigate the effects of three different screen sizes (small, medium and large) and two types of multimedia instruction (text only and text with pictorial annotation) on vocabulary learning. One hundred thirty‐five Korean middle school students learning English as a foreign language were randomly distributed into six groups and were given a pretest, a self‐study multimedia instruction, a posttest and a retention test online. The pretest, posttest and retention test were identical and included 30 vocabulary questions. Results show that the large screen multimedia instruction helped the students to learn English vocabulary more effectively than the small screen instruction as demonstrated on both the posttest and retention test. However, there was little difference in vocabulary learning between the text‐only and text‐with‐pictorial annotation instructions. Although visual perception can be influenced by each learner's expectations and knowledge, using a smaller screen for instruction causes more challenges for learners to perceive and comprehend vocabulary learning.  相似文献   

3.
What are the effects of group size (individuals, pairs, and quads of students), gender, and ability grouping of 245 seventh- and eighth-grade students on achievement within an environment that uses microcomputers as tools in learning science process skills? A split-plot, multivariate factorial design was used to analyze the above factors and interactions among the factors. Analyses indicated that the only statistically significant result was a main effect on ability for the two response variables measured in the study. Major conclusions included: (1) teams of two and four members working together solved problems as effectively as individuals, (2) the lessons and procedures implemented in the manner described generated a gender-neutral achievement outcome in science, and (3) microcomputer, using a file-management program and structured activities, can be used as a tool to promote student learning of science process skills.  相似文献   

4.
The misinterpretation and overuse of significance testing in the social sciences has been widely criticized. This criticism is reviewed, along with several recommendations found in the literature, including the use of effect size measures to enhance the interpretation of significance testing. A review of typical effect size measures and their application is followed by an analysis of the extent to which effect size measures have been applied in three prominent journals on learning disabilities over a 10-year period. Specific recommendations are offered for using effect size measures to improve the quality of reporting on quantitative research in the field of learning disabilities.  相似文献   

5.
Agonistic interactions between all possible pairings of 10 adult female rainbow cichlids (Herotilapia multispinosa) were observed in three round-robin tournaments. Specific behaviors and color patterns were found to characterize winning and losing fish. The outcomes of agonistic encounters were used to construct a hypothetical dominance hierarchy. This hierarchy was consistent over the three tournaments in that (1) the order of animals in the hierarchy remained relatively unchanged and (2) the relationship between the members of a particular dyad tended to remain stable. The latter was especially true for fish of widely different dominance rank.  相似文献   

6.
The purpose of this study was to investigate how the use of CAI tutorial programs, incorporating advance organizers and involving various sizes of groups of subjects, would affect students' achievement scores, retention scores, and rates of learning. Used as subjects were 100 suburban high school physics students running interactive tutorial physics programs focusing on strobe simulation and displacement-time and velocity-time graphs. For fifty students (experimental group) an advance organizer program preceded each tutorial. The remaining fifty students (control group) had an advance non-organizer program preceding each tutorial. While pursuing the tutorials the students worked individually or together in groups of two, three, or four. Five days were allocated for the students to repeat the four tutorials until 90% competency level was attained. Achievement and retention were measured by individually administered paper-pencil teacher-made tests sampling the content of all four tutorials. Rate of learning was determined for groups by the number of times the first three tutorial programs were executed in order to attain 90% competency. In the two-way analysis of variance the only significant result at the 0.05 level pertained to group size. Results of the Tukey Test revealed that students working in groups of three and four on CAI tutorials had significantly better rates of learning than students working alone. No significant differences in achievement or retention were observed for the various groups. The implications for using CAI tutorials in physics point to grouping students in fours as a time saving and economic method of presenting material without significant loss of achievement or retention.  相似文献   

7.
Many rat studies of learned helplessness confound the stress of restraint with inescapable shock. In the present experiment, albino rats were held immobile for 0, 2, 8, 14, or 18 h. Behavioral deficits were observed in an open-field activity maze and in two-way shuttlebox avoidance acquisition. In the activity maze, a sex X restraint interaction was observed for latency to leave the center square, ambulation, and frequency of center square crossing. Males were slower to leave the center square, had fewer ambulations, and crossed the center square less frequently than females. These effects were potentiated by restraint. Males reared significantly less than females, and restrained animals reared significantly less than nonrestrained animals. Restraint also significantly increased the frequency of grooming. On the avoidance tasks, a significant restraint X trial block interaction indicated slower learning for restrained animals. The severity of the decrements increased with restraint duration. The presence of stomach lesions was positively correlated with stress duration and the severity of the behavioral decrement. The results indicate that restraint produces a variety of behavioral changes which may result in interpretive difficulties for helplessness studies that confound restraint and shock.  相似文献   

8.
9.
Within Higher Education, current changes in levels of funding available and the increasingly diverse profiles of students participating have placed a greater emphasis on the need for institutions to provide more ‘flexible methods’ of delivery. In addition to traditional face-to-face, collaborative environments, the widespread use of information and communication technologies allows individuals around the globe to participate in collaborative learning. Dillenbourg emphasizes the need to differentiate the ‘notion of culture’ in the context of intercultural group learning, with that of developing a common ground or ‘micro-culture’ through which to successfully interact. The importance of building a micro-culture is echoed by Ashcraft and Treadwell, as the basis for successful collaborative learning. This article highlights the experiences of a university based, intercultural, mixed methods research project at Master's degree level, where student researchers with diverse backgrounds, worked collaboratively to create a tentative conceptual framework, in order to map research trends at the 2010 American Educational Research Association conference. This article suggests that collaborative learning in intercultural groups, rather than benefiting from one approach over another, can actually be enhanced by the combining of methods, resulting in a deeper learning experience for those participating. Furthermore, in the initial stages of negotiating and re-negotiating collective understandings and meaning, face-to-face collaboration can provide a basis for deeper learning and understanding in subsequent online collaboration, as experienced by the intercultural collective research group, which is the case study of this article.  相似文献   

10.
Small tutorial groups in higher education are often composed without regard to students’ gender or broad knowledge background, for example, yet research indicates that composing groups on the basis of gender and prior qualifications may have significant effects on assessment outcomes. Previous studies have also investigated the effects of composing groups on the basis of learning style preference and found no effects. The effect of combining group composition with training in learning styles is unclear, however. In this study we report on the effects of workshop training in learning styles on balanced group members’ study self‐efficacy, preference for group work, group climate, and assessment performance. Although we found no effects, students reported greater self‐awareness of their own learning and acceptance of others’ styles. We conclude that in collaborative learning environments, training may need to go beyond facilitating growth in students’ self‐awareness to include a focus on how to apply this understanding to improving group function and helping others to learn.  相似文献   

11.
Several studies on age-related cognitive decline in dogs involve laboratory dogs and prolonged training. We developed two spatial tasks that required a single 1-h session. We tested 107 medium-large sized dogs: “young” (N=41, aged 2.5–6.5 years) and “old” (N=66, aged 8–14.5 years). Our results indicated that, in a discrimination learning task and in a reversal learning task, young dogs learned significantly faster than the old dogs, indicating that these two tasks could successfully be used to investigate differences in spatial learning between young and old dogs. We also provide two novel findings. First, in the reversal learning, the dogs trained based on the location of stimuli learned faster than the dogs trained based on stimulus characteristics. Most old dogs did not learn the task within our cut-off of 50 trials. Training based on an object’s location is therefore more appropriate for reversal learning tasks. Second, the contrast between the response to the positive and negative stimuli was narrower in old dogs, compared to young dogs, during the reversal learning task, as well as the cognitive bias test. This measure favors comparability between tasks and between studies. Following the cognitive bias test, we could not find any indication of differences in the positive and negative expectations between young and old dogs. Taken together, these findings do not support the hypothesis that old dogs have more negative expectations than young dogs and the use of the cognitive bias test in older dogs requires further investigation.  相似文献   

12.
Research has indicated significant disparities in the academic achievement of minority and majority groups in most Western countries. In light of the role of academic achievement as the main component of social mobility, it is important to understand the source of these differences between the majority and minority groups. The present research focused on learning goals as a possible basis for the disparity in academic achievement. It examined the learning goals of matched groups of students of Jewish and Arab Israelis who were enrolled in the same academic institution, and followed their academic achievement for two years. The findings indicate a gap between the groups in terms of achievement in favour of the students from the Jewish majority group. No difference was found between the groups in learning goals, but the level of intrinsic goal orientation was associated with achievement differently in the two groups. Possible explanations and implications of the findings are discussed.  相似文献   

13.
The purpose of this study was to investigate the effects of cooperative learning strategies on performance, attitude toward working in teams, and group interaction behaviors in a technical training context. Participants were 274 engineering employees enrolled in a required training class that focused on communicating technical procedures in plant operations. Participants were divided into small groups and cooperative teams. Instruction was the same for all participants. Only the practice portion of the lesson reflected cooperative strategies versus no process direction. Results indicated that the practice conducted in a cooperative manner had a significant effect on performance and group behaviors. Participants in the cooperative teams performed better on the posttest, enjoyed working in teams, perceived more accomplishment, and displayed higher levels of social and cognitive interaction than participants who worked in unstructured small groups. Implications for integrating cooperative strategies into technical team training are provided.  相似文献   

14.
This study examined the self-perceptions, motivational orientations, and classroom adjustment of children with learning disabilities (LD), matched-IQ non-LD, randomly selected non-LD, and low achieving children. Elementary-age children (N = 148; 37 from each group) completed domain-specific measures of their self-concepts, perceptions of control, and motivation. Teachers rated children on motivational and competence indices and classroom behavioral adjustment. Comparisons among groups indicated that children with LD were lower in perceived cognitive competence and academic self-regulation relative to the nondisabled control groups, but were comparable to the low achieving children. Children with LD were most likely to perceive academic outcomes as controlled by powerful others. No group differences were found for general self-perceptions of control or competence. Teacher ratings of children with LD were more discrepant from those of comparison groups than were self-ratings of children with LD. The results suggest the need for matched-IQ and low achieving control groups in research on children with LD. The origin and role of both environmental inputs and self-perceptions in the adjustment of students with LD are discussed.  相似文献   

15.
Learning objects are interactive web-based tools that support the learning of specific concepts by enhancing, amplifying, and/or guiding the cognitive processes of learners. Research on the impact, effectiveness, and usefulness of learning objects is limited, partially because comprehensive, theoretically based, reliable, and valid evaluation tools are scarce, particularly in the K-12 environment. The purpose of the following study was to investigate a Learning Object Evaluation Scale for Students (LOES-S) based on three key constructs gleaned from 10 years of learning object research: learning, quality or instructional design, and engagement. Tested on over 1100 middle and secondary school students, the data generated using the LOES-S showed acceptable internal reliability, face validity, construct validity, convergent validity and predictive validity.
Robin H. KayEmail:
  相似文献   

16.
Values education in Asian societies is commonly underpinned by an ideology of communitarianism that seeks to promote the needs and interests of ‘others’ over the ‘self’. An example of an Asian country that promotes communitarian values through its values education curriculum is Singapore. By reviewing the moral and citizenship education curricula in Singapore, the present article points out that the accent is on ‘others’ rather than the ‘self’. Noting that communitarianism has often been linked to Confucian values in Asian societies, this article offers a Confucian viewpoint of the self and moral self-cultivation. It further argues for a form of values education that balances the ‘self’ with ‘others’ through active learning, self-reflection and self-evaluation. The Singapore experience provides a useful case study on the influence of communitarianism and the potential of Confucianism on values education in an Asian context.  相似文献   

17.
斑胸草雀中脑丘间复合体背内侧核诱发鸣声的声谱分析   总被引:1,自引:0,他引:1  
中脑丘间复合体背内侧核(dorsomedial nucleus of the intercollicular complex,DM)是鸣禽鸟的基本发声中枢.应用电声理学与声谱分析相结合的方法研究鸣禽斑胸草雀(Taeniopygia guttata))DM核团对其鸣声的调控模式.结果显示:刺激斑胸草雀左、右侧DM产生的诱发叫声声谱图类似,不具有典型谐音频带,刺激右侧DM核团产生的诱发叫声主能量区带是刺激左侧的2.4倍,声长为1.3倍,提示右侧DM核团对诱发叫声的影响较大.损毁左、右侧DM后自鸣声中产生大量恒频声,这是在正常鸣叫声中没有的现象,提示DM核团对鸣叫声的频率调制起着至关重要的作用.损毁右侧DM后自鸣声声长为左侧的1.3倍,主能量区带为1.3倍,提示右侧损毁DM对自鸣声的影响较大.左右两侧差异体现斑胸草雀的DM核团对于非习得性鸣声的调控具有右侧优势.  相似文献   

18.
Action learning is a pedagogical practice that helps participants learn by talking about their workplace action with fellow participants (‘comrades in adversity’) in their action learning set. This paper raises questions about the action in action learning, such as: how do members of an action learning set learn from and through each other? How do they learn through their developing conversation and interaction?

To answer such questions, I argue that, ‘ethnomethodology’ (the study of ‘member's methods’ or ‘folk methods’ for doing any kind of practical action) is useful for showing the intricacy of the practical learning process in action learning, as in learning in action, more generally. The paper illustrates the conversational and interactional work of members doing things and learning together in action (for example discovering things in science and in board meetings); and argues that this approach may also be used to study action learning in practice.  相似文献   


19.
The recent focus on AfL has shifted from defining its scope and extent to understanding its implementation, and research has revealed AfL implementation to be complex and contested. AfL implementation is especially challenging in national contexts that emphasise high stakes examination performance and grades. One such example is the nation state of Singapore, which recently implemented Assessment for Learning nation-wide in all its primary schools in the form of “bite-sized assessment”. This article examines how bite-sized assessment in Singapore came to be implemented as a form of AfL, and how it was subsequently constructed as policy dictate, as opposed to being recognised as a form of best practice. A study of teachers’ perspectives of bite-sized assessment practices in Singapore primary schools reveals inconsistency between policy intent and school implementation. An inquiry-based approach is recommended for teachers to frame AfL implementation as a practice to be understood, rather than a package of pre-determined practices to be administered.  相似文献   

20.
This paper reports on the use of an online, resource-based learning (RBL) approach in first year psychology at Deakin University. Differences between on- and off-campus students that emerged are examined in the context of the learning goals and study approaches of the two student groups and their attitudes to using computers. Unlike the on-campus students who were less positive about working with computers and reported confusion about how and what to study for the unit, the off-campus students reported feeling confident they had a good study strategy and were more positive about computers. The off-campus students also reported that they spent more time working with electronic resources and attached greater value to them. While all students valued the prescribed resources, the off-campus students found some of the optional, electronic resources valuable because they added to the learning experience. These students also reported greater use of the computer-mediated communication available as part of the online learning environment, and valued this functionality more highly than did the on-campus students. These findings highlight the need to take into account learner characteristics when designing learning environments that cater for individual differences and preferences. While online-supported RBL approaches have the potential to cater to the diverse needs of students, learning environments need to be designed, structured and delivered so the learning experience can be customized to the needs of different student cohorts, while preserving the overarching, pedagogical goals.  相似文献   

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