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91.
Karina Rdz-Navarro 《The Journal of general psychology》2013,140(4):417-442
Use of subject scores as manifest variables to assess the relationship between latent variables produces attenuated estimates. This has been demonstrated for raw scores from classical test theory (CTT) and factor scores derived from factor analysis. Conclusions on scores have not been sufficiently extended to item response theory (IRT) theta estimates, which are still recommended for estimation of relationships between latent variables. This is because IRT estimates appear to have preferable properties compared to CTT, while structural equation modeling (SEM) is often advised as an alternative to scores for estimation of the relationship between latent variables. The present research evaluates the consequences of using subject scores as manifest variables in regression models to test the relationship between latent variables. Raw scores and three methods for obtaining theta estimates were used and compared to latent variable SEM modeling. A Monte Carlo study was designed by manipulating sample size, number of items, type of test, and magnitude of the correlation between latent variables. Results show that, despite the advantage of IRT models in other areas, estimates of the relationship between latent variables are always more accurate when SEM models are used. Recommendations are offered for applied researchers. 相似文献
92.
In the present study, the efficacy of visual demonstrations and verbal instructions as instructional constraints on the acquisition of movement coordination was investigated. Fifteen participants performed an aiming task on 100 acquisition and 20 retention trials, under 1 of 3 conditions: a modeling group (MG), a verbally directed group (VDG), and a control group (CG). The MG observed a model intermittently throughout acquisition, whereas the VDG was verbally instructed to use the model's movement pattern. Participants in the CG received neither form of instruction. Kinematic analysis revealed that compared with verbal instructions or no instructions, visual demonstrations significantly improved participants' approximation of the model's coordination pattern. No differences were found in movement outcomes. Coordination data supported the visual perception perspective on observational learning, whereas outcome data suggested that the modeling effect is mainly a function of task constraints, that is, the novelty of a movement pattern. 相似文献
93.
Joseph F.T. Nese Gina BiancarosaKelli Cummings Patrick KennedyJulie Alonzo Gerald Tindal 《Journal of School Psychology》2013
Measures of oral reading fluency (ORF) are perhaps the most often used assessment to monitor student progress as part of a response to intervention (RTI) model. Rates of growth in research and aim lines in practice are used to characterize student growth; in either case, growth is generally defined as linear, increasing at a constant rate. Recent research suggests ORF growth follows a nonlinear trajectory, but limitations related to the datasets used in such studies, composed of only three testing occasions, curtails their ability to examine the true functional form of ORF growth. The purpose of this study was to model within-year ORF growth using up to eight testing occasions for 1448 students in Grades 1 to 8 to assess (a) the average growth trajectory for within-year ORF growth, (b) whether students vary significantly in within-year ORF growth, and (c) the extent to which findings are consistent across grades. Results demonstrated that for Grades 1 to 7, a quadratic growth model fit better than either linear or cubic growth models, and for Grade 8, there was no substantial, stable growth. Findings suggest that the expectation for linear growth currently used in practice may be unrealistic. 相似文献
94.
There is growing emphasis on the use of positive behavior supports rather than exclusionary discipline strategies to promote a positive classroom environment. Yet, there has been limited research examining the association between these two different approaches to classroom management and students' perceptions of school climate. Data from 1902 students within 93 classrooms that were nested within 37 elementary schools were examined using multilevel structural equation modeling procedures to investigate the association between two different classroom management strategies (i.e., exclusionary discipline strategies and the use of positive behavior supports) and student ratings of school climate (i.e., fairness, order and discipline, student–teacher relationship, and academic motivation). The analyses indicated that greater use of exclusionary discipline strategies was associated with lower order and discipline scores, whereas greater use of classroom-based positive behavior supports was associated with higher scores on order and discipline, fairness, and student–teacher relationship. These findings suggest that pre-service training and professional development activities should promote teachers' use of positive behavior support strategies and encourage reduced reliance on exclusionary discipline strategies in order to enhance the school climate and conditions for learning. 相似文献
95.
Factorial validity of the Mental Toughness Questionnaire-48 总被引:1,自引:0,他引:1
John L. Perry Peter J. Clough Lee Crust Keith Earle Adam R. Nicholls 《Personality and individual differences》2013
The purpose of this study was to assess the factorial validity of the Mental Toughness Questionnaire-48 (Clough, Earle, & Sewell, 2002). In total, 8207 participants (male n = 4019, female n = 3922, unspecified = 266) aged between 16 and 68 years (M = 37.00, SD = 12.09) completed the MTQ48. Model fit was assessed using confirmatory factor analysis (CFA) and exploratory structural equation modeling, in addition to the robust maximum likelihood estimator. Overall, our results support the factorial validity of the MTQ48 and indicate that the MTQ48 is a robust psychometric measure of mental toughness. Along with previous data, which supports the internal validity of the MTQ48 in addition to results of this study, it would appear that the MTQ48 is an acceptable method of assessing mental toughness. 相似文献
96.
《Estudios de Psicología》2013,34(59):65-85
ResumenEn el presente trabajo de investigación nos interesamos por dar a conocer las características psicométricas y estructurales de una nueva escala de evaluación de estrategias de aprendizaje escolar, así como también por el tipo de relación que mantiene este constructo con otras variables o correlatos importantes en el funcionamiento cognitivo como son los procesos de atribución, el autoconcepto y la motivación académica La muestra de sujetos, en base a la cual se realiza el estudio, está compuesta por 371 alumnos/as de 5°, 6°, 7° y 8° de E.G.B., pertenecientes a colegios públicos de la zona central del Principado de Asturias, de los cuales 192 son chicos y 179 son chicas. Su nivel socioeconómico es medio y pertenecen a una zona industrial. Los resultados obtenidos indican que (a) la escala LASSI es moderadamente fiable y con una estructura factorial que pudiera variar con la edad de los sujetos, (b) que existen diferencias entre niños y niñas en algunas de las dimensiones estratégicas así como también respecto a la edad de los mismos y (c) las estrategias de aprendizaje se encuentran notablemente relacionadas con los procesos atribucionales, el autoconcepto, las metas de estudio y el rendimiento de los alumnos. En el último punto del trabajo, en primer lugar, advertimos de la naturaleza exploratoria y provisionalidad de los datos obtenidos así como de la neceidad de la realización de otras investigaciones con el fin de disipar ciertas discrepancias y, en segundo lugar, interpretamos los resultados de nuestro trabajo contextualiz ándolos dentro de las actuales teorías metacognitiv as de la instrucción. 相似文献
97.
Patrick Grim Trina Kokalis Ali Tafti Nicholas Kilb 《World Futures: Journal of General Evolution》2013,69(2):179-197
We extend previous work on cooperation to some related questions regarding the evolution of simple forms of communication. The evolution of cooperation within the iterated Prisoner's Dilemma has been shown to follow different patterns, with significantly different outcomes, depending on whether the features of the model are classically perfect or stochastically imperfect (Axelrod, 1980a,b, 1984, 1985; Axelrod and Hamilton, 1981; Nowak and Sigmund, 1990, 1992; Sigmund, 1993). Our results here show that the same holds for communication. Within a simple model, the evolution of communication seems to require a stochastically imperfect world. 相似文献
98.
BRIAN G. EDDY 《World Futures: Journal of General Evolution》2013,69(1-2):151-163
Considering the role of space and place in Integral Ecology is presented as the concept of Integral Geography. First, an ecological AQAL model is proposed to situate the diverse scientific disciplines used in geography, giving equal consideration for their respective contributions in knowledge and understanding of the world. Second, a model for incorporating perspectives provided in the arts and humanities is proposed in situating scientific understanding in relation to aesthetic and cultural aspects of “being and becoming.” Third, a Geographical Information System (GIS) based map model illustrates how biophysical and social realities can be viewed and analyzed from a geographical perspective as “Integral places.” 相似文献
99.
Donna A. Henderson Bethany F. Montplaisir 《Journal of counseling and development : JCD》2013,91(3):336-342
Some counselors excel in the profession. Few do so while maintaining a balance in life. This article examines the life of one such individual, Samuel T. Gladding. He models for counselors an aspirational process of making significant contributions to the profession while staying personally grounded. Qualities that propel professionals like Gladding from being good as a young professional into prominence as a mature counselor are examined. 相似文献
100.
ABSTRACTWhen measuring psychological traits, one has to consider that respondents often show content-unrelated response behavior in answering questionnaires. To disentangle the target trait and two such response styles, extreme responding and midpoint responding, Böckenholt (2012a) developed an item response model based on a latent processing tree structure. We propose a theoretically motivated extension of this model to also measure acquiescence, the tendency to agree with both regular and reversed items. Substantively, our approach builds on multinomial processing tree (MPT) models that are used in cognitive psychology to disentangle qualitatively distinct processes. Accordingly, the new model for response styles assumes a mixture distribution of affirmative responses, which are either determined by the underlying target trait or by acquiescence. In order to estimate the model parameters, we rely on Bayesian hierarchical estimation of MPT models. In simulations, we show that the model provides unbiased estimates of response styles and the target trait, and we compare the new model and Böckenholt’s model in a recovery study. An empirical example from personality psychology is used for illustrative purposes. 相似文献