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1.
The recent advances in software and computer technology have enabled the incorporation of dynamic representations into a multitude of educational and training environments. Cognitive load theory has been extensively used to enhance learning from complex dynamic representations by providing appropriate instructional designs to manage learner cognitive load. The available evidence, however, indicates that the suggested instructional designs that are effective for novice learners can reverse and become ineffective for learners with higher levels of prior knowledge. This phenomenon is called the expertise reversal effect. This paper reviews a series of recent experimental studies that have found interactions between levels of learners' organized knowledge structures (endogenous support) and effectiveness of different instructional designs (exogenous support), leading to the expertise reversal effect. It is argued that adapting instructional designs to learners with different amount of prior knowledge is a crucial part of effective learning.  相似文献   

2.
The interactions between levels of learner prior knowledge and effectiveness of different instructional techniques and procedures have been intensively investigated within a cognitive load framework since mid-90s. This line of research has become known as the expertise reversal effect. Apart from their cognitive load theory-based prediction and explanation, patterns of empirical findings on the effect fit well those in studies of Aptitude Treatment Interactions (ATI) that were originally initiated in mid-60s. This paper reviews recent empirical findings associated with the expertise reversal effect, their interpretation within cognitive load theory, relations to ATI studies, implications for the design of learner-tailored instructional systems, and some recent experimental attempts of implementing these findings into realistic adaptive learning environments.  相似文献   

3.
This study examined the effectiveness of a computer-based environment employing three example-based instructional procedures (example–problem, problem–example, and fading) to teach series and parallel electrical circuit analysis to learners classified by two levels of prior knowledge (low and high). Although no differences between the instructional procedures were observed, low prior knowledge learners benefited most from traditional example–problem pairs while their high prior knowledge counterparts benefited most from problem–example pairs. Overall, this study provides empirical support for the expertise reversal effect, which suggests that the effectiveness of certain instruction procedures in example-based learning environments depends upon the learners' level of prior knowledge.  相似文献   

4.
Learning with instructional animations may overstretch limited working memory resources due to intense processing demands associated with transient information. The authors investigated whether explicit instructional advice coupled with a task-specific learner control mechanism (such as a timeline scrollbar) could facilitate the successful self-management of transient information. The effectiveness of a timeline scrollbar that allowed self-pacing and self-sequencing of animations was compared with computer-controlled animations. Experiment 1 demonstrated that a timeline scrollbar (with instructional advice on its strategic use) enhanced the retention of stroke sequences in writing Chinese characters. In Experiment 2, a timeline scrollbar was used in an integrated set of narrated animations dealing with complex scientific information. Retention and comprehension post-tests indicated that although a scrollbar accompanied by instructional advice in its use assisted novice learners, no such effect was found with participants who possessed higher levels of prior knowledge. The findings have implications for the formulation of criteria for the effective incorporation of learner control into the design of instructional animations.  相似文献   

5.
The expertise reversal effect occurs when instruction that is effective for novice learners is ineffective or even counterproductive for more expert learners. Four experiments designed to explore the expertise reversal effect in the field of teaching and learning foreign language listening skills were conducted. Three instructional formats (read-only, listen-only, and read-and-listen) were designed to teach native Chinese students English (experiments 1–3) or French (experiment 4) listening skills. Experiment 1 found a significant interaction with no effect for learners with lower levels of listening expertise but a significant effect for learners with higher levels of listening expertise favoring the read-only approach. The results of experiment 2 replicated the counterintuitive findings of experiment 1. Experiment 3 testing less knowledgeable students than experiments 1 and 2 indicated that the read-and-listen condition was more effective for novice learners. Experiment 4 testing beginner-level learners of French as a foreign language obtained results consistent with those of experiment 3 in that lower expertise learners gained greater benefits from the read-and-listen than the read-only or listen-only teaching approaches. It is concluded that the read-and-listen approach benefitted novice learners but more expert learners could benefit more from the read-only approach.  相似文献   

6.
The aim of this paper is to examine the effects of sequencing instructional materials and learners' prior knowledge on learning ESL (English as a second language) through an online learning course. 121 fifth-grade students from an elementary school in Korea participated in the study. Each participant was allocated to one cell of a 2?×?2 between-subjects factorial design, with an instructional format (i.e. sequential or concurrent) as a first factor, and prior knowledge (i.e. high or low) as a second factor. Instructions of the words and grammar rules were allocated to each page for the sequential group, whereas integrated on a single page for the concurrent group. The result indicates that the sequential instruction of words followed by grammar explanations was more effective for the students with higher levels of prior knowledge than the concurrent presentation. The reverse was also found for the students with lower levels of prior knowledge in English. There are four possible explanations for the results. First, split-attention effect, temporal-contiguity effect, or transient information effect might occur. Second, worked-example effect might occur and over-ride the effect of sequencing. Third, intrinsic and extraneous cognitive load might intertwine each other. Last, the levels of element interactivity in two instructional formats might be different from each other. The implications for instructional designers and future research are discussed.  相似文献   

7.
Providing prompts to induce focused processing of the central contents of instructional explanations is a promising instructional means to support novice learners in learning from instructional explanations. However, within research on the expertise reversal effect it has been shown that instructional means that are beneficial for novices can be detrimental for learners with more expertise if the instructional means provide guidance that overlaps with the internal guidance provided by the prior knowledge of learners with more expertise. Under such circumstances, prompts to induce focused processing might even be detrimental for learners with expertise whose prior knowledge already provides internal guidance to learn from explanations. On this basis, we aimed at experimentally varying expertise by developing prior knowledge. Specifically, we used a preparation intervention with contrasting cases to enhance learners’ prior knowledge (expertise). Against this background, we tested 71 university students in a 2 × 2 factorial experimental design: (a) Factor of expertise. Working with contrasting cases to develop prior knowledge and expertise to provide internal guidance to learn from instructional explanations (with vs. without), (b) Factor of prompts. Prompts to induce focused processing of the explanations (with vs. without). The results showed that prompts to induce focused processing fostered conceptual knowledge for novice learners whereas prompts hindered the acquisition of conceptual knowledge for learners with expertise that was developed by working with contrasting cases beforehand. Moreover, measures of subjective cognitive load and learning processes suggest that the instructional guidance provided by prompts compensated for the low internal guidance of novice learners and overlapped with the internal guidance of learners with expertise.  相似文献   

8.
Five experiments were conducted to examine the effects of cognitive load management using explanatory notes in reading passages for readers with different levels of expertise. Experiment 1 found that explanatory notes improved 5th-grade, first-language learners' comprehension (high-level processing) but not vocabulary learning (low-level processing). Experiment 2 found that vocabulary definitions integrated within a passage (integrated format) enhanced 5th graders' comprehension compared to a separate vocabulary list (separated format) but reduced vocabulary learning. Experiment 3, using adult readers, found that an integrated format reduced comprehension but enhanced vocabulary learning. Experiment 4 used low-ability 8th-grade learners of English as a second language (ESL) and found an effect similar to the 5th graders in Experiment 2. Experiment 5 showed that the effect for high-ability ESL learners was similar to the adults in Experiment 3. We argue that the efficiency of instruction depends on the extent to which it imposes an extraneous cognitive load. The same presentation format may facilitate performance or interfere with performance either through split-attention or redundancy effects, depending on learners' expertise.  相似文献   

9.
The eye-tracking technology was used in this study to investigate the effects of embedded questions and feedback in instructional videos on learning performance and attention allocation and whether an expertise reversal effect existed. The experiment involved 49 learners with high-level prior knowledge and 45 ones with low-level prior knowledge from a university. Meanwhile, they learned instructional videos with no embedded feedback, embedded questions without feedback and embedded questions with feedback. Findings from the experiment showed that the instructional videos with embedded questions but without feedback not only improved the participants’ attention but also enhanced their learning performance. Furthermore, there was an expertise reversal effect on the learning performance whereby instructional videos with embedded questions but without feedback improved the learning performance of learners with low-level prior knowledge, but not those with high-level prior knowledge.  相似文献   

10.
The study investigated the effectiveness of causal words embedded in Chinese texts to explicitly indicate causal links between the described events. Primary school students with different levels of reading expertise participated in the experiment that compared an embedded casual-words format with the original no-causal-words format. An interaction (expertise reversal) effect was obtained with the causal-words format benefiting novices but not more experienced readers. In contrast to previous studies of the expertise reversal effect that have related the effect to the variations in extraneous cognitive load caused by experts processing redundant for them information, this instance of the effect is likely to be due to differential levels of intrinsic cognitive load. The results of the reported experiment imply the use of different text formats for individuals with different levels of reading expertise.  相似文献   

11.
Two experiments were conducted to investigate how individuals with persistent pain would respond to instructional materials designed to promote the modality and redundancy effects. It was predicted that persistent pain would reduce the positive impact of narrated text due to reduced working memory capacity. One hundred thirty-seven full-time teachers from six schools in Australia participated in the study. Pain and pain-free participants were identified and matched through a demographics questionnaire before being randomly assigned to selected instructional formats. In both experiments, participants viewed system-paced multimedia presentations depicting how lightning works. In Experiment 1, it was found that for pain-free participants, illustrations plus narrated text led to significantly higher learning outcomes than illustrations plus written text (a modality effect). However, for pain participants, no advantage was found for the illustrations plus narrated text format. In Experiment 2, it was found that for pain-free participants, illustrations plus narrated text led to significantly higher learning outcomes than illustrations plus narrated text plus identical written text (a redundancy effect). For pain participants, a reverse effect was found, suggesting that the replicated written text format was not redundant but beneficial for these individuals. Furthermore, despite low scores on standardized pain measures, individuals with persistent pain achieved significantly lower learning outcomes than pain-free participants in both experiments. It was concluded that clinically low levels of pain could significantly interfere with information retention and transference. For individuals with persistent pain, the use of narrated explanatory text could be a disadvantage due to its transitory nature.  相似文献   

12.
The effects of epistemic beliefs and text structure on cognitive processes during comprehension of scientific texts were investigated. On‐line processes were measured using think‐aloud (Experiment 1) and reading time (Experiment 2) methodologies. Measures of off‐line comprehension, prior knowledge and epistemic beliefs were obtained. Results indicated that readers adjust their processing as a function of the interaction between epistemic beliefs and text structure. Readers with misconceptions and more sophisticated epistemic beliefs engage in conceptual change processes, but only when reading refutation texts. Results also showed that memory for text is not affected by differences in epistemic beliefs or text structure. These findings contribute to our understanding of the relations among factors associated with text comprehension and have implications for theories of conceptual change.  相似文献   

13.
Self-explanation in the domain of statistics: an expertise reversal effect   总被引:1,自引:0,他引:1  
This study investigated the effects of four instructional methods on cognitive load, propositional knowledge, and conceptual understanding of statistics, for low prior knowledge students and for high prior knowledge students. The instructional methods were (1) a reading-only control condition, (2) answering open-ended questions, (3) answering open-ended questions and formulating arguments, and (4) studying worked-out examples of the type of arguments students in the third group had to formulate themselves. The results indicate that high prior knowledge students develop more propositional knowledge of statistics than low prior knowledge students. With regard to conceptual understanding, the results indicate an expertise reversal effect: low prior knowledge students learn most from studying worked-out examples, whereas high prior knowledge students profit most from formulating arguments. Thus, novice students should be guided into the subject matter by means of worked-out examples. As soon as students have developed more knowledge of the subject matter, they should be provided with learning tasks that stimulate students to solve problems by formulating arguments.  相似文献   

14.
The purpose of the study was to investigate the effects of imagination and learner-generated drawing on comprehension, reading time, cognitive load, and eye movements, and whether prior knowledge moderated the effects of these two strategies. Sixty-three undergraduate students participated in a pretest-posttest between-subjects study with the independent variable being the instructional strategies with three levels (learner-generated drawing vs. imagination vs. repeated reading). The results revealed that, compared to repeated reading, learner-generated drawing fostered learners' comprehension when their prior knowledge was relatively low. Moreover, when asked to read the science text after the intervention, learners who were previously engaged with imagination spent significantly more time reading the text, and fixated longer and more frequently than those in the repeated reading condition.  相似文献   

15.
The expertise reversal effect occurs when learner’s expertise moderates design principles derived from cognitive load theory. Although this effect is supported by numerous empirical studies, indicating an overall large effect size, the effect was never tested by inducing expertise experimentally and using instructional explanations in a computer-based environment. The present experiment used an illustrated introductory text and a computer program about statistical data analyses with 93 students. Retention and transfer tests were employed as dependent measures. Each learner was randomly assigned to one condition of a 2 × 2 between subjects factorial design with the two factors expertise (novices vs. ‘experts’) and explanations (with vs. without). Expertise was induced by adding expository examples and illustrations to the introductory text to enhance text coherence and facilitate text comprehension. The expertise reversal effect was replicated for the dependent measure transfer, but not for retention. Results and implications for adaptive learning environments are discussed.  相似文献   

16.
Learning from printed text is a central academic task that may be challenging for students. Two ways to improve learning from text are to encourage learners to engage in generative learning strategies while reading, such as constructing an outline, or for instructors to include effective instructional design features, such as providing an outline with the text. A meta-analysis of studies comparing a group that was asked to generate an outline while reading a text to a control group that was not asked to outline found an average effect size of g+ = 0.59 on memory tests, g+ = 0.59 on comprehension tests, and g+ = 0.52 on writing assignments favoring learner-generated outlining. A meta-analysis of studies comparing a group that read a text containing an outline with a control group that read the same text without an outline found an effect size of g+ = 0.61 for memory tests and g+ = 0.34 for comprehension tests favoring instructor-provided outlining. Overall, there is encouraging evidence for the effectiveness of outlining as a generative learning strategy and for the effectiveness of outlining as an instructional design feature based on signaling, consistent with generative learning theory.  相似文献   

17.
This study investigated the effectiveness of concept mapping used as a learning strategy with students in English as a Second Language classrooms. Seventy-nine ESL students participated in the study. Variables of interest were students’ achievement when learning from English-language text, students’ reported use of self-regulation strategies (self-monitoring and knowledge acquisition strategies), and students’ self-efficacy for learning from English-language text. A randomized pre-test–post-test control group design was employed. The findings showed a statistically significant interaction of time, method of instruction, and level of English proficiency for self-monitoring, self-efficacy, and achievement. For all four outcome variables, the concept mapping group showed significantly greater gains from pre-test to post-test than the individual study group. The findings have implications for both practice and research.  相似文献   

18.
Previous research into the effectiveness of dynamic versus static instructional design paradigms has reported divergent findings. Dynamic instructions have been shown to be more effective in teaching novel procedural skills. In contrast, the apparent benefit of dynamic over static instructions has been attributed in other studies to the cognitive capabilities and previous knowledge of the learner. Can the benefit of dynamic instruction persist in learners with domain expertise on learning novel tasks? In this paper, we report the result of an experiment that shows that irrespective of the learner's previous knowledge, dynamic instructions retain a significant effectiveness over statics for teaching intra‐domain novel task performance. Twenty‐four participants with domain expertise were divided into three independent groups to perform a procedural motor task following treatment with different training interfaces. After controlling for spatial abilities and excluding previous specific‐to‐task knowledge, we observe that participants that trained with interfaces containing dynamic content recorded better task performance measures than others using non‐dynamic interfaces. This suggest that within the context of motor skill acquisition, dynamic instructional interfaces can yield significant increases to post‐learning task performance measures, which is independent of the learner's cognitive capabilities or previous knowledge.  相似文献   

19.
In an expertise study with 94 mathematics teachers varying in their relative teacher expertise (i.e., student teachers, trainee teachers, in-service teachers), we examined effects of teachers' professional knowledge and motivational beliefs on their ability to integrate technology within a lesson plan scenario. Therefore, we assessed teachers' professional knowledge (i.e., content knowledge, pedagogical content knowledge, technological knowledge), and their motivational beliefs (i.e., self-efficacy, utility-value). Furthermore, teachers were asked to develop a lesson plan for introducing the Pythagorean theorem to secondary students. Lesson plans by advanced teachers (i.e., trainee teachers, in-service teachers) comprised higher levels of instructional quality and technology exploitation than the ones of novice teachers (i.e., pre-service teachers). The effect of expertise was mediated by teachers' perceived utility-value of educational technology, but not by their professional knowledge. These findings suggest that teachers’ motivational beliefs play a crucial role for effectively applying technology in mathematics instruction.  相似文献   

20.
This study investigated interactions between the isolated–interactive elements effect and levels of learner expertise with first year undergraduate university accounting students. The isolated–interactive elements effect occurs when learning is facilitated by initially presenting elements of information sequentially in an isolated form rather than in a fully interactive form. The expertise reversal effect occurs when the relevant advantage of one instructional technique over another reverses depending on the learner’s level of expertise. The results provided support for the predicted interaction with lower expertise students benefitting from the isolated elements instructional method, while students with more expertise learned more from the interacting elements format.  相似文献   

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