Dr. Siek Toon Khoo Copyright (c) 2011 All rights reserved. http://works.bepress.com/siek_toon_khoo Recent documents in Dr. Siek Toon Khoo en-us Wed, 03 Aug 2011 01:50:41 PDT 3600 Multilevel latent variable modeling in multiple populations http://works.bepress.com/siek_toon_khoo/60 http://works.bepress.com/siek_toon_khoo/60 Mon, 01 Aug 2011 16:23:32 PDT Modeling is described for the simultaneous analysis of two-level data in several populations. A typical example is cluster sampling of students within schools, where schools of different types are represented, eg public and private schools. Multivariate measurements on each student are assumed to give rise to a latent variable model. Of interest is to study across-population differences and similarities with respect to the within- and between-group covariance matrices and with respect to the mean vector. The methodology is illustrated by a comparative analysis of achievement structures in Catholic and public schools.

]]> Siek Toon Khoo et al. The psychometrics of longitudinal measurements http://works.bepress.com/siek_toon_khoo/59 http://works.bepress.com/siek_toon_khoo/59 Sun, 31 Jul 2011 23:38:29 PDT Siek Toon Khoo Longitudinal Studies in Education: Applications and Opportunities http://works.bepress.com/siek_toon_khoo/58 http://works.bepress.com/siek_toon_khoo/58 Sun, 31 Jul 2011 23:36:46 PDT Siek Toon Khoo Analysing Longitudinal Data on Families: A Multivariate Latent Growth Modelling Approach http://works.bepress.com/siek_toon_khoo/57 http://works.bepress.com/siek_toon_khoo/57 Sun, 31 Jul 2011 23:34:51 PDT Siek Toon Khoo Latent Growth Curve Modelling and Applications http://works.bepress.com/siek_toon_khoo/55 http://works.bepress.com/siek_toon_khoo/55 Sun, 31 Jul 2011 23:26:13 PDT Siek Toon Khoo Analysing hierarchical data with multivariate outcomes: Beyond multilevel regression models http://works.bepress.com/siek_toon_khoo/54 http://works.bepress.com/siek_toon_khoo/54 Sun, 31 Jul 2011 23:24:38 PDT Siek Toon Khoo Monitoring Educational Progress Over Time: Goals and Opportunities http://works.bepress.com/siek_toon_khoo/53 http://works.bepress.com/siek_toon_khoo/53 Sun, 31 Jul 2011 23:22:15 PDT Siek Toon Khoo Statistical Modelling of Assessment and Educational Data from a progress monitoring perspective http://works.bepress.com/siek_toon_khoo/52 http://works.bepress.com/siek_toon_khoo/52 Sun, 31 Jul 2011 18:41:28 PDT Siek Toon Khoo An investigation of the stability of a literacy variable over time: Implications for standards monitoring http://works.bepress.com/siek_toon_khoo/51 http://works.bepress.com/siek_toon_khoo/51 Sun, 31 Jul 2011 18:25:42 PDT Siek Toon Khoo et al. Displaying test Analyses with TITAN and Bigscale http://works.bepress.com/siek_toon_khoo/50 http://works.bepress.com/siek_toon_khoo/50 Sun, 31 Jul 2011 18:20:19 PDT Siek Toon Khoo et al. A review of some fit tests for Rasch models http://works.bepress.com/siek_toon_khoo/49 http://works.bepress.com/siek_toon_khoo/49 Sun, 31 Jul 2011 18:16:45 PDT Siek Toon Khoo Using the partial credit model to identify and adjust for differences among assessors http://works.bepress.com/siek_toon_khoo/48 http://works.bepress.com/siek_toon_khoo/48 Sun, 31 Jul 2011 18:14:49 PDT Geoff N. Masters et al. Modeling gender differences in growth patterns of mathematics achievement over time http://works.bepress.com/siek_toon_khoo/47 http://works.bepress.com/siek_toon_khoo/47 Sun, 31 Jul 2011 18:11:01 PDT Siek Toon Khoo Evaluating an intervention: A latent growth modeling approach http://works.bepress.com/siek_toon_khoo/45 http://works.bepress.com/siek_toon_khoo/45 Sun, 31 Jul 2011 17:54:15 PDT Siek Toon Khoo et al. Investigating Interactions between intervention effects and individual and group characteristics http://works.bepress.com/siek_toon_khoo/44 http://works.bepress.com/siek_toon_khoo/44 Sun, 31 Jul 2011 17:43:44 PDT Siek Toon Khoo et al. Latent growth modeling of developmentally evolving constructs: Modeling sequential processes http://works.bepress.com/siek_toon_khoo/43 http://works.bepress.com/siek_toon_khoo/43 Sun, 31 Jul 2011 17:37:55 PDT Siek Toon Khoo et al. Measuring change, changing measurement: Implications for longitudinal studies http://works.bepress.com/siek_toon_khoo/42 http://works.bepress.com/siek_toon_khoo/42 Sun, 31 Jul 2011 17:31:43 PDT Siek Toon Khoo Assessing Program Effects in Longitudinal Studies http://works.bepress.com/siek_toon_khoo/41 http://works.bepress.com/siek_toon_khoo/41 Thu, 28 Jul 2011 19:45:23 PDT Siek Toon Khoo Modeling Growth: From Individual OLS Line Fitting to Hierarchical Linear Modeling http://works.bepress.com/siek_toon_khoo/40 http://works.bepress.com/siek_toon_khoo/40 Thu, 28 Jul 2011 19:41:22 PDT A M. Calandrella et al. Latent growth modeling of a multidimensional construct http://works.bepress.com/siek_toon_khoo/39 http://works.bepress.com/siek_toon_khoo/39 Thu, 28 Jul 2011 19:35:10 PDT Siek Toon Khoo et al. Differential item functioning of CESD depressive symptoms in the aging population http://works.bepress.com/siek_toon_khoo/38 http://works.bepress.com/siek_toon_khoo/38 Thu, 28 Jul 2011 19:32:25 PDT Siek Toon Khoo et al. Recovery from a traumatic event: Issues in constructing recovery curves for longitudinal program evaluation http://works.bepress.com/siek_toon_khoo/37 http://works.bepress.com/siek_toon_khoo/37 Thu, 28 Jul 2011 19:28:36 PDT Siek Toon Khoo Longitudinal Moderated Mediation http://works.bepress.com/siek_toon_khoo/36 http://works.bepress.com/siek_toon_khoo/36 Thu, 28 Jul 2011 19:25:55 PDT Siek Toon Khoo et al. Growth Mixture Modelling: An Application in the Evaluation of a Randomized Prevention Trial http://works.bepress.com/siek_toon_khoo/35 http://works.bepress.com/siek_toon_khoo/35 Thu, 28 Jul 2011 19:23:07 PDT Siek Toon Khoo et al. Putting Achievement Growth in Context: Modeling Individual Growth in Literacy and Numeracy http://works.bepress.com/siek_toon_khoo/34 http://works.bepress.com/siek_toon_khoo/34 Thu, 28 Jul 2011 19:20:20 PDT Siek Toon Khoo et al. Attitudes to School, Educational Intentions and Participations http://works.bepress.com/siek_toon_khoo/33 http://works.bepress.com/siek_toon_khoo/33 Thu, 28 Jul 2011 19:01:13 PDT Siek Toon Khoo et al. Analysing hierarchical data with multivariate outcomes: Beyond multilevel regression models http://works.bepress.com/siek_toon_khoo/32 http://works.bepress.com/siek_toon_khoo/32 Thu, 28 Jul 2011 18:50:14 PDT Multilevel regression models are now well established and widely applied in analyses of hierarchical data – typically to account for variation in only one univariate response variable at level 1. However, many substantive research questions call for more complex models. For the analyses of hierarchical data with multivariate outcomes, multilevel mean and covariance structure modelling in the structural equation modelling framework offers great flexibility and modelling opportunities. This paper describes the basic concepts of two-level mean and covariance structure analysis of hierarchical data, and showcases application examples. The paper focuses on fitting possible models requiring multilevel applications and highlight: (a) the statistical modelling opportunities afforded by latent variable modelling, and (b) the utility of the structural equation modelling framework. The models discussed include: multilevel path models; multilevel factor models with multiple-group comparisons; latent growth curve models with multiple processes; and mediational models. The examples are based on analyses of hierarchical educational and psychosocial data. The statistical modelling methodology will be discussed in terms of implications for both research and practice.

]]> Siek Toon Khoo Putting Achievement growth in context: Methodological issues http://works.bepress.com/siek_toon_khoo/31 http://works.bepress.com/siek_toon_khoo/31 Thu, 28 Jul 2011 18:46:01 PDT Siek Toon Khoo Modeling Cross-level Interaction in Multilevel Analysis of Longitudinal Mediation Process http://works.bepress.com/siek_toon_khoo/30 http://works.bepress.com/siek_toon_khoo/30 Thu, 28 Jul 2011 18:33:08 PDT J Cheong et al. Growth in receptive vocabulary among 4 to 8 year-olds: Using growth modelling with the LSAC K cohort http://works.bepress.com/siek_toon_khoo/29 http://works.bepress.com/siek_toon_khoo/29 Thu, 28 Jul 2011 18:29:16 PDT Kylie Hillman et al. Computer adaptive testing : a feasibility study http://works.bepress.com/siek_toon_khoo/28 http://works.bepress.com/siek_toon_khoo/28 Thu, 28 Jul 2011 18:18:38 PDT The Australian National Office of Overseas Skills Recognition (NOOSR) commissioned ACER to investigate the feasibility of implementing computer adaptive testing (CAT) in NOOSR’s screening examinations for overseas trained professionals. The National Office administers screening examinations in seven professions (Dentistry, Dietetics, Occupational Therapy, Podiatry, Pharmacy, Physiotherapy and Veterinary Science) at venues throughout Australia and in up to fifty centres around the world. Surveys were conducted to gain an overview of the current methods and procedures used by NOOSR in the screening examinations. Issues related to the application of CAT to NOOSR’s screening examinations and the possible improvement of NOOSR’s assessment program with the implementation of CAT were considered. In order to assess the feasibility of developing a CAT system that will meet the particular needs of different aspects of NOOSR’s assessment programs, the possibility of a CAT system for NOOSR was explored by actually designing one. The procedures of implementation of a CAT system and the process of conversion to the new system were considered and recommendations made.

]]> Siek Toon Khoo et al. Multidimensional description of subgroup differences in mathematics achievement data from the 1992 National Assessment of Educational Progress http://works.bepress.com/siek_toon_khoo/27 http://works.bepress.com/siek_toon_khoo/27 Thu, 28 Jul 2011 18:05:54 PDT B O. Muthén et al. Profiles of learning: the Basic Skills Testing Program in New South Wales: 1989 http://works.bepress.com/siek_toon_khoo/26 http://works.bepress.com/siek_toon_khoo/26 Thu, 28 Jul 2011 02:18:07 PDT The 1989 Basic Skills Testing Program in New South Wales provides the most comprehensive picture yet compiled of literacy and numeracy learning in Australian primary schools. In 1989, some 53,800 Year 6 students in NSW government schools were tested in five aspects of literacy and numeracy. Another 2,300 Year 3 students took part in a pilot study. This book discusses the writing of the tests, the analysis of results, and the reporting of results to parents, teachers and schools. The aim of the basic skills tests is to describe, in positive terms, the skills that students have mastered, to identify areas in which students have special strengths and weaknesses, and to provide guides to further learning. The picture that emerges from this study is of widespread success in learning. The results point to much good teaching and a fine start in learning for most primary students. But this generally optimistic picture is over shadowed by the performances of some students who have not yet mastered essential Year 6 skills. These students need special help if they are not to fall further behind in their learning. [This work was awarded the U.S. National Council on Measurement in Education Triennial Book Award in 1992 for the dissemination of educational measurement concepts]

]]> Geoff N. Masters et al. Longitudinal data on families: Growth modeling alternatives http://works.bepress.com/siek_toon_khoo/25 http://works.bepress.com/siek_toon_khoo/25 Thu, 28 Jul 2011 01:41:04 PDT Siek Toon Khoo et al. Analysis of reading skills development from kindergarten through first grade: An application of growth mixture modeling to sequential processes http://works.bepress.com/siek_toon_khoo/24 http://works.bepress.com/siek_toon_khoo/24 Thu, 28 Jul 2011 01:37:40 PDT B O. Muthén et al. Moderating effects of a risk factor: Modeling longitudinal moderated mediation in the development of adolescent heavy drinking http://works.bepress.com/siek_toon_khoo/23 http://works.bepress.com/siek_toon_khoo/23 Thu, 28 Jul 2011 01:24:07 PDT D B. Flora et al. Symptom improvement and its temporal course in short-term dynamic psychotherapy - a growth curve analysis http://works.bepress.com/siek_toon_khoo/22 http://works.bepress.com/siek_toon_khoo/22 Thu, 28 Jul 2011 01:18:34 PDT M Svartberg et al. Opportunity-to-Learn Effects on Achievement: Analytical Aspects http://works.bepress.com/siek_toon_khoo/21 http://works.bepress.com/siek_toon_khoo/21 Thu, 28 Jul 2011 01:11:49 PDT B O. Muthén et al. Longitudinal studies of achievement growth using latent variable modeling http://works.bepress.com/siek_toon_khoo/20 http://works.bepress.com/siek_toon_khoo/20 Thu, 28 Jul 2011 01:05:51 PDT B O. Muthén et al. Assessing program effects in the presence of treatment-baseline interactions: a latent curve approach http://works.bepress.com/siek_toon_khoo/19 http://works.bepress.com/siek_toon_khoo/19 Thu, 28 Jul 2011 01:02:56 PDT Siek Toon Khoo The Existential Loneliness Questionnaire: background, development, and preliminary findings http://works.bepress.com/siek_toon_khoo/18 http://works.bepress.com/siek_toon_khoo/18 Thu, 28 Jul 2011 01:00:17 PDT A Mayers et al. General growth mixture modeling for randomized preventive interventions http://works.bepress.com/siek_toon_khoo/17 http://works.bepress.com/siek_toon_khoo/17 Thu, 28 Jul 2011 00:55:46 PDT B O. Muthén et al. A Latent Growth Modeling Approach to Mediation Analysis http://works.bepress.com/siek_toon_khoo/16 http://works.bepress.com/siek_toon_khoo/16 Thu, 28 Jul 2011 00:48:35 PDT Jee-Won Cheong et al. Risk and Protective Factors Predictive of Adolescent Pregnancy: A Longitudinal, Prospective Study http://works.bepress.com/siek_toon_khoo/15 http://works.bepress.com/siek_toon_khoo/15 Wed, 27 Jul 2011 23:57:39 PDT Patricia L. East et al. Symptoms of internalizing and externalizing problems: modeling recovery curves after the death of a parent http://works.bepress.com/siek_toon_khoo/13 http://works.bepress.com/siek_toon_khoo/13 Wed, 27 Jul 2011 23:41:23 PDT S J. Schmiege et al.