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1.
This article compares two statistical approaches for modeling growth across time. The two statistical approaches are the multilevel model (MLM) and latent curve analysis (LCA), which have been proposed to depict change or growth adequately. These two approaches were compared in terms of the estimation of growth profiles represented by the parameters of initial status and the rate of growth. A longitudinal data set obtained from a school‐based substance‐use prevention trial for adolescents was used to illustrate the similarities and differences between the two approaches. The results indicated that the two approaches yielded very compatible results. The parameter estimates associated with regression weights are the same, whereas those associated with variances and covariances are similar. The MLM approach is easier for model specification and is more efficient computationally in yielding results. The LCA approach, however, has the advantage of providing model evaluation, that is, an overall test of goodness of fit, and is more flexible in modeling and hypothesis testing as demonstrated in this study. 相似文献
2.
通过对南京地区某双层玻璃幕墙建筑在夏季白天不同运行模式下的表皮各层和室内温度分布对比实测,分析该建筑的热特性.结果表明:在9.5 h内,房间B在外层通风口打开、内层表皮紧闭、中间遮阳完全启用的情形下,空调系统能耗比房间A在内外层表皮均完全紧闭、无遮阳设施情形下减少21.0%.玻璃幕墙各层表皮和室内各状态点的温度沿水平和垂直方向的分布规律均受到遮阳状态的显著影响.中间遮阳设施的启用有助于强化热通道的烟囱效应.相较于房间A,房间B的温度分布更加均匀.但在所有的测试工况下,双层玻璃幕墙热通道的过热问题始终存在. 相似文献
3.
Randall D. Penfield 《Journal of Educational Measurement》2007,44(3):187-210
Many statistics used in the assessment of differential item functioning (DIF) in polytomous items yield a single item-level index of measurement invariance that collapses information across all response options of the polytomous item. Utilizing a single item-level index of DIF can, however, be misleading if the magnitude or direction of the DIF changes across the steps underlying the polytomous response process. A more comprehensive approach to examining measurement invariance in polytomous item formats is to examine invariance at the level of each step of the polytomous item, a framework described in this article as differential step functioning (DSF). This article proposes a nonparametric DSF estimator that is based on the Mantel-Haenszel common odds ratio estimator ( Mantel & Haenszel, 1959 ), which is frequently implemented in the detection of DIF in dichotomous items. A simulation study demonstrated that when the level of DSF varied in magnitude or sign across the steps underlying the polytomous response options, the DSF-based approach typically provided a more powerful and accurate test of measurement invariance than did corresponding item-level DIF estimators. 相似文献
4.
Clinical utility of the Devereux Behavior Rating Scale—School Form among culturally diverse children
David S. Goh 《Psychology in the schools》1997,34(4):301-308
Two hundred sixty-seven children from three ethnic samples (95 Caucasians, 95 African Americans, and 77 Hispanics) were rated by their teachers on the Devereux Behavior Rating Scale-School Form (DSF). The data were analyzed by univariate and multivariate ANOVAs, discriminant analysis, and sensitivity and specificity analysis. Results indicate the DSF has utility in screening children for serious emotional disturbance in the present sample. The findings also suggest that the criterion-related validity of the DSF found for the general population can be generalized to Caucasian, African American, and Hispanic children. In addition, the cutoff score of 1 SD above the mean on the DSF Total scale was found to yield the highest true positive and negative hit rates for the total and Caucasian samples. The optimum cutoff scores were slightly lower for the African American and Hispanic samples. Usefulness and limitation of the DSF as a screening instrument with school children are discussed. © 1997 John Wiley & Sons, Inc. 相似文献
5.
The interaction between approaches to teaching and students’ learning has been the focus of research for more than 20 years. Previous studies concerning approaches to teaching in higher education have identified two broad categories: content- and learning-focused approaches. Some studies indicate that teachers do not always adopt a consonant teaching- or learning-focused approach, but might employ elements of both, which results in a dissonant approach. Research on how dissonant approaches to teaching and students’ quality of learning are related is scant. This study explored relationships between how teachers’ approaches to teaching and undergraduate students’ self-reported approaches to learning and learning outcomes. The data for this study consisted of 33 semi-structured interviews with students from three courses. Interviews were analysed with qualitative content analysis. The results demonstrated that, when the teacher used a consonant learning-focused approach to teaching, students’ learning outcomes and approaches to learning were of a slightly higher quality than when the teacher employed a dissonant approach to teaching. However, a dissonant approach to teaching did not always result in a lower quality of approaches to learning and learning outcomes. 相似文献
6.
The study investigated cognitive and motivational effects of two educational interventions, a conventional versus a student‐oriented approach. We monitored the impact on the cognitive achievement outcome and the motivation of students. Both approaches dealt with the subject of birds and bird flight; the student‐oriented approach consisted of a unit based on workstations, and the conventional one was taught in a more teacher‐centred manner. A total of 326 secondary school pupils of the highest stratification level participated in this study. By using a pre‐test, post‐test and retention‐test design, both approaches were evaluated with the same empirical batteries (by applying a cognitive item set and the “Intrinsic Motivation Inventory”). The conventional approach provided higher achievement scores whereas the student‐oriented approach showed a higher motivational rating. Comparing the student‐oriented approach with and without introduction, the group with introduction attained higher achievement scores. The results are discussed in terms of general expectations about the cognitive outcome in open learning environments and self‐determination theory. Educational implications are drawn concerning the implementation of learning at workstations in school curricula. 相似文献
7.
Domingo Docampo 《Higher Education in Europe》2007,32(4):369-386
The use of appropriate indicators of public and private expenditures, from which statistically significant differences in funding policies can be identified, constitutes a solid foundation in which the assessment of the role of governments in promoting higher education can be grounded. Based on a carefully selected set of Organization for Economic Co‐operation and Development indicators, this paper explores the effects of education funding policies, along with research and development expenditures and tax levels, on the entry rate to higher education. The results from the statistical analysis of the data confirm the existence of two distinct approaches to higher education funding, the Scandinavian approach and Anglo–American approach, and help to define their characteristics. 相似文献
8.
Audrey J. Leroux 《Journal of Experimental Education》2019,87(3):430-448
This study proposes a new model, termed the multiple membership piecewise growth model (MM-PGM), to handle individual mobility across clusters frequently encountered in longitudinal studies, especially in educational research wherein some students could attend multiple schools during the course of the study. A real data set containing some students who switched elementary schools was used to demonstrate and explain the MM-PGM. Parameter and model fit differences were compared between the MM-PGM and two other techniques for handling student mobility: the first school-PGM, which only used school membership at the first measurement occasion, and the delete-PGM, which removed mobile students from the analysis. Results indicated that the three approaches of handling mobile students led to different conclusions about the impact of school-level predictors of growth parameters and the school-level variability in the growth rates. Furthermore, deleting mobile students altered the impact of student-level predictors compared to the other two approaches. 相似文献
9.
Pedro Rosário José Carlos Núñez Guilermo Vallejo Olímpia Paiva António Valle Sonia Fuentes Ricardo Pinto 《European Journal of Psychology of Education - EJPE》2014,29(4):577-601
In the framework of teacher’s approaches to teaching, this study investigates the relationship between student-related variables (i.e., study time, class absence, domain knowledge, and homework completion), students’ approaches to learning, and teachers’ approaches to teaching using structural equation modeling (SEM) with two independent data samples. The participants were 61 biology teachers and their corresponding 1,518 high school students (12th grade). The first sample was used to fit the model, and the second sample was used to analyze the consistency of the data derived from the first sample. Using a two-level SEM analysis, we established whether the effects found at the individual level varied significantly at class level. The students’ approaches to learning were related to the teachers’ approaches to teaching as a function of the hypotheses established in the model, although the effect size was smaller than expected. However, approximately 48 % of the variance of the surface approach and 46 % of the deep approach sat at class level. At the individual level, the results of this study suggest that students’ approaches to learning significantly explain their teachers’ approaches to teaching and, thus, constitute important contextual variables. At the class level, the way students learn appears to be closely associated with class-related variables. Our data stresses the importance of promoting educational opportunities (e.g., school-based courses) for teachers to reflect upon the teaching methodologies used in class. 相似文献
10.
Linying Ji Sy-Miin Chow Alice C. Schermerhorn Nicholas C. Jacobson E. Mark Cummings 《Structural equation modeling》2018,25(5):715-736
Myriad approaches for handling missing data exist in the literature. However, few studies have investigated the tenability and utility of these approaches when used with intensive longitudinal data. In this study, we compare and illustrate two multiple imputation (MI) approaches for coping with missingness in fitting multivariate time-series models under different missing data mechanisms. They include a full MI approach, in which all dependent variables and covariates are imputed simultaneously, and a partial MI approach, in which missing covariates are imputed with MI, whereas missingness in the dependent variables is handled via full information maximum likelihood estimation. We found that under correctly specified models, partial MI produces the best overall estimation results. We discuss the strengths and limitations of the two MI approaches, and demonstrate their use with an empirical data set in which children’s influences on parental conflicts are modeled as covariates over the course of 15 days (Schermerhorn, Chow, & Cummings, 2010). 相似文献
11.
MIAO Yong-wei FENG Jie-qing ZHENG Guo-xian PENG Qun-sheng 《浙江大学学报(A卷英文版)》2007,8(4):575-585
Segmenting a complex 3D surface model into some visually meaningful sub-parts is one of the fundamental problems in digital geometry processing. In this paper, a novel segmentation approach of point-sampled surfaces is proposed, which is based on the level set evolution scheme. To segment the model so as to align the patch boundaries with high curvature zones, the driven speed function for the zero level set inside narrow band is defined by the extended curvature field, which approaches zero speed as the propagating front approaches high curvature zone. The effectiveness of the proposed approach is demonstrated by our ex- perimental results. Furthermore, two applications of model segmentation are illustrated, such as piecewise parameterization and local editing for point-sampled geometry. 相似文献
12.
Context-based learning has become a widespread approach in science education. While positive motivational effects of such approaches have been well established empirically, clear results regarding cognitive aspects of students’ learning are still missing. In this article, we argue that this circumstance might be mainly rooted in the definition of context itself. Based on this argument, we shift from the issue of if contexts are cognitively beneficial to focus on the question of which composition of contexts is, at least by tendency, more effective than another. Based on theories of conceptual change, we therefore conducted a small-scale intervention study comparing two groups of students learning in different sets of contexts focusing on the same scientific concept—the cross-cutting concept of energy. Results suggest that learning in a more heterogeneous set of contexts eases transfer to new contexts in comparison to learning in a more homogeneous set of contexts. However, a more abstract understanding of the energy concept does not seem to be fostered by either of these approaches. Theoretical as well as practical implications of these finding are discussed. 相似文献
13.
Relations between teachers' approaches to teaching and students' approaches to learning 总被引：16，自引：0，他引：16
This paper reports on an empirical study which shows that qualitatively different approaches to teaching are associated with qualitatively different approaches to learning. More specifically, the results indicate that in the classes where teachers describe their approach to teaching as having a focus on what they do and on transmitting knowledge, students are more likely to report that they adopt a surface approach to the learning of that subject. Conversely, but less strongly, in the classes where students report adopting significantly deeper approaches to learning, teaching staff report adopting approaches to teaching that are more oriented towards students and to changing the students conceptions. The study made use of a teaching approach inventory derived from interviews with academic staff, and a modified approach to learning questionnaire. These conclusions are derived from a factor and cluster analysis of 48 classes (involving 46 science teachers and 3956 science students) in Australian universities. The results complete a chain of relations from teacher thinking to the outcomes of student learning. Previous studies have shown relations between teachers' conceptions of teaching and learning and their approaches to teaching. Numerous studies have shown correlations between students' deeper approaches to learning and higher quality learning outcomes. The results reported here link these two sets of studies. They also highlight the importance, in attempts to improve the quality of student learning, of discouraging teacher-focused transmission teaching and encouraging higher quality, conceptual change/student-focused approaches to teaching. 相似文献
14.
The design of pre-service inclusive education courses and their effects on self-efficacy: a comparative study 总被引：1，自引：1，他引：0
This study compared two versions of a 13-week mandatory undergraduate inclusive education course to determine their effects on the self-efficacy of pre-service elementary education teachers. For the purposes of the research, the self-efficacy construct was applied specifically to working with students who have inclusive educational needs. The study sought to determine whether there were differential effects of the two approaches – one based on a field-based placement and the other employing a course design approach derived from complex adaptive systems. The results showed statistically significant gains in self-efficacy for both approaches, although there were no statistically significant differences between versions of the course. The implications of the findings are discussed for the design of mandatory inclusive education courses. 相似文献
15.
Sarfaraz Serang Ross Jacobucci Kim C. Brimhall Kevin J. Grimm 《Structural equation modeling》2017,24(5):733-744
Exploratory mediation analysis refers to a class of methods used to identify a set of potential mediators of a process of interest. Despite its exploratory nature, conventional approaches are rooted in confirmatory traditions, and as such have limitations in exploratory contexts. We propose a two-stage approach called exploratory mediation analysis via regularization (XMed) to better address these concerns. We demonstrate that this approach is able to correctly identify mediators more often than conventional approaches and that its estimates are unbiased. Finally, this approach is illustrated through an empirical example examining the relationship between college acceptance and enrollment. 相似文献
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17.
Pedro Rosário José Carlos Núñez Pere J. Ferrando Maria Olímpia Paiva Abílio Lourenço Rebeca Cerezo Antonio Valle 《Metacognition and Learning》2013,8(1):47-77
Since the 1970s, a large body of research has reported on the differences between deep and surface approaches to student learning. More recently, however, this metaphor for students’ approaches to learning has been applied to the practice of teaching. Studies at the university level have identified two approaches to teaching: the information transmission/teacher-focused approach and the conceptual change/student-focused approach. The present study analyzes the relationship between teachers’ approaches to teaching and high school students’ approaches to learning. The data were analyzed by fitting a two-level structural equation model based on the hypothesis that student academic achievement is significantly determined by the way they study and that the way they study is partially determined by the way teachers teach. The participants were high school students (778 twelfth graders) enrolled in biology courses and their teachers (40 total). The same model was proposed at both levels (i.e., within and between levels) and fit the data quite well. As expected, within level, the effects of the ‘approaches to learning’ on ‘biology achievement’ regression were far larger than the corresponding effects at between level. The central findings suggest worthy directions for future research. 相似文献
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19.
Julie Lancaster Greg Auhl 《International Journal of Disability, Development & Education》2013,60(4):363-381
This study investigated the ability of students in a pre-service teacher education course to deploy pattern language (or professional lexicon) related to specific inclusive teaching strategies. The study sought to determine whether there were differential effects of two approaches to learning, one based on a field-based placement (Applied Experience) and the other employing an embedded course design approach (Embedded Design). The results indicate that pattern language frequency and sophistication increased significantly over time. Results also indicate that pre-service teachers’ use and sophistication of pattern language differed according to the structure of the university learning approach employed. The findings are discussed within the context of Embedded Design theory and the role of Applied Experience in pre-service inclusive education, as well as within the context of building more rigorous teacher preparation programmes. 相似文献
20.
The phenomenographic ‘approach to learning’ literature holds that students’ approaches to learning can change depending on the learning context. This implies that, by modifying the learning context, teachers can change the way students approach learning, and this can ultimately lead to a change in learning outcomes. The study presented here examines one effort to modify a science, technology, engineering, and mathematics (STEM) learning context and the approaches to learning taken by students experiencing this environment. Using a qualitative, phenomenographic approach, we interviewed 45 students in a STEM peer‐led workshop programme at a large US research university. Similar to previous approach‐to‐learning research, the study identified three approaches students took to learning in the peer‐led programme, in which they focused on simply making it through the course, engaging more meaningfully with the material, and gaining better control over their own learning. 相似文献