https://nd.psychstat.org/ 2026-04-14T15:09:01+00:00 https://nd.psychstat.org/ https://nd.psychstat.org/_media/wiki/dokuwiki.svg text/html 2017-09-29T11:04:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/alpha Documentation for online alpha calculation Go back to the interface Interface The online alpha has an interface like below Options alpha or omega Once can choose to calculate Cronbach's alpha or McDonald's omega here. Data File The data file has to be in free format, separated by space. Each column represents an item. Variable names can be specified in the first line of the data file. An example file can be downloaded at text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/bayesian_methods Bayesian in press Bayes Offers a 'New' Way to Make Sense of Numbers Adding Art to the Rigor Of Statistical Science text/html 2025-01-21T02:07:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/bib @{group@ @groupkey@ @{entry@ @author@ (@year@). @title@. @journal@ @pages@ @}entry@ @}group@ text/html 2025-01-21T01:54:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/bibfile @article{Yuan_2024, title={Scale-Invariance, Equivariance and Dependency of Structural Equation Models}, volume={31}, ISSN={1532-8007}, url={http://dx.doi.org/10.1080/10705511.2024.2353168}, DOI={10.1080/10705511.2024.2353168}, number={6}, journal={Structural Equation Modeling: A Multidisciplinary Journal}, publisher={Informa UK Limited}, author={Yuan, Ke-Hai and Ling, Ling and Zhang, Zhiyong}, year={2024}, month=jun, pages={1027–1042} text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/cite-bauw Article citing BAUW * Zhang, Z., Hamagami, F., Wang, L., Grimm, K. J., & Nesselroade, J. R. (2007). Bayesian analysis of longitudinal data using growth curve models. International Journal of Behavioral Development, 31(4), 374-383. * Common polymorphisms in the folate pathway predict efficacy of combination regimens containing methotrexate and sulfasalazine in early rheumatoid arthritis. Heather M James, David Gillis, Pravin Hissaria, Susan Lester, Andrew A Somogyi, Leslie G Cleland, and Sus… text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/csda2013 Supplement materials for CSDA on robust growth mixture models By Lu, Z. and Zhang, Z. text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/grm Mplus scripts for estimating the quadratic growth rate models text/html 2016-06-01T19:02:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/haiyan_liu Haiyan Liu 225 Hagger Hall Department of Psychology University of Notre Dame Notre Dame, IN 46556 Email:hliu6@nd.edu Research Interests * Bayesian methods * Structure equation modeling * Categorical data analysis * Nonlinear modeling text/html 2023-03-30T14:45:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/index Lab for Big Data Methodology For latest information, please visit our website at <https://bigdatalab.nd.edu> Supplementary materials <http://nd.psychstat.org/research/supplementary/index> Undergraduate research opportunity If you are interested in joining our lab and an undergraduate student at Notre Dame, send the following to ZhiyongZhang (at) nd.edu: text/html 2018-04-17T16:30:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/johnny_committees Since 2018 National * SMEP disertation award committee University * University Committee on Research and Sponsored Programs * Department of Psychology computer committee Dissertation * Amber Shoaib (Feb, 2018), Dissertation defense, committee member text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/johnny_presentation Invited Lectures and Addresses * Zhang, Z. (2014, September). The use of relaxed and Bayesian assumptions on error terms in dynamic models of change. Paper presented at 2014 SRCD Themed Meeting: Developmental Methodology, San Diego, CA. * Yuan, K.-H., Tong, X., & Zhang, Z. (2012, July). Bias and efficiency for SEM with missing data and auxiliary variables: Robust method versus normal distribution based ML. Paper presented at the 2nd Institute of Mathematical Statistics Asia Pacific Rim Mee… text/html 2026-03-17T20:15:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/johnny_zhang Zhiyong Johnny Zhang PhD, University of Virginia Professor of Quantitative Psychology, University of Notre Dame Director, Lab for Big Data Methodology Faculty Fellow, Institute for Educational Initiatives Fellow, American Psychological Association Editor, Journal of Behavioral Data Science Editorial Board (Associate Editor), Neurocomputing Editorial Board (Guest Editor), Psychological Methods 438 Corbett Family Hall Department of Psychology University of Notre Dame Tel: 574-631-2… text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/lab Lab for Developmental and Health Research Methodology Overview of our research Our lab aims to develop and apply statistical methods in the areas of developmental and health research. Current Members * Peggy Wang * Johnny Zhang * Xin (Cynthia) Tong * Qian (Jackie) Zhang * Zhe (Jesse) Wang Undergraduate research opportunity text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/laura_lu Laura Lu is now an Assistant Professor at the University of Georgia. text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/leah_tzakis Leah is a freshman here at the University at Notre Dame. text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/luzhanglubke2010 Supplementary materials for Lu, Zhang, & Lubke (2011) OpenBUGS codes for real data analysis * MNAR analysis ############################################## ## GMM with non-ignorable missingdata ## ############################################## model { ######################## ## model ######################## for( i in 1:N ) { # --------- Model the latent mixture, parameter: lambda.--------- z[i] ~ dcat(lambda[i… text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/mbr2012 Distribution diagnostics for robust growth curve models Citation Tong, X., and Zhang, Z. (2012). Diagnostics of Robust Growth Curve Modeling using Student's t Distribution. Multivariate Behavioral Research,47(4), 493-518. Software Click the link below to use the online software: text/html 2017-02-22T01:21:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/meghan_cain Meghan Cain Psychology B.A., Lewis and Clark College Quantitative Psychology M.A., University of Notre Dame 220B Hagger Hall Department of Psychology University of Notre Dame Notre Dame, IN 46556 Email: mcain3@nd.edu Meghan is a fifth year in the Quantitative Psychology PhD program, currently completing her dissertation on Bayesian SEM fit indices PPP and DIC. Her previous research has tackled quantitative issues for substantive researchers, and she has been involved with many collabora… text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/peggy_wang Peggy Wang Research interests Lijuan Peggy Wang's research interests are in the areas of longitudinal data analysis and mixed-effects modeling. She is also interested in psychological and educational measurement. Her current research project involves developing and applying models for multivariate nonnormal data such as longitudinal ceiling data and multivariate zero-inflated count data. text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/sem2013a Supplement files for Tong et al. (2014) Link to Figures: To cite, use Tong, X., Zhang, Z., & Yuan, K.-H. (2014). Evaluation of Test Statistics for Robust Structural Equation Modeling with Nonnormal Missing Data. text/html 2025-01-21T01:57:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/test text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/xin_cynthia_tong Xin Cynthia Tong Cynthia is now an assistant professor at the University of Virginia Email: xtong@virginia.edu Research Interests * Bayesian methods: apply Bayesian methods to growth curve modeling, item response theory, and dynamic system analysis. text/html 2017-09-05T20:02:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/xinyi_cindy_wang Xinyi(Cindy) Wang Computer Science, Class of 2017 University of Notre Dame My main responsibility is to help develop and maintain the statistical website application. As an undergraduate student at Notre Dame, I want to explore the broad possibilities with a degree in Computer Science. I love problem solving and coding, and I am also interested in painting, reading, and learning new things. I believe the real learning comes from applying. text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/yujiao_mai Yujiao is a first year post-doc. See her bio at <http://psychology.nd.edu/faculty/post-docs/yujiao-mai/> text/html 2016-01-24T14:48:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://nd.psychstat.org/research/zhangwang2013 For some reason, the parameter estimates in Table 2 did not include complete information. The correct table is given below: (Note although there was slight difference in the values, the conclusions are the same).