Rao's polynomial growth curve model for unequal-time intervals: A menu-driven gauss program
dc.contributor.author | Schneiderman, Emet D. | en_US |
dc.contributor.author | Willis, Stephen M. | en_US |
dc.contributor.author | Ten Have, Thomas R. | en_US |
dc.contributor.author | Kowalski, Charles J. | en_US |
dc.date.accessioned | 2006-04-10T14:29:37Z | |
dc.date.available | 2006-04-10T14:29:37Z | |
dc.date.issued | 1991-12 | en_US |
dc.identifier.citation | Schneiderman, Emet D., Willis, Stephen M., Ten Have, Thomas R., Kowalski, Charles J. (1991/12)."Rao's polynomial growth curve model for unequal-time intervals: A menu-driven gauss program." International Journal of Bio-Medical Computing 29(3-4): 235-244. <http://hdl.handle.net/2027.42/29000> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B7GH2-4C4FRG0-MX/2/166e99d0e27fbb2d4f2181396bb123d4 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/29000 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=1778639&dopt=citation | en_US |
dc.description.abstract | For lack of alternatives, longitudinal data are often analyzed with cross-sectional statistical methods, for instance, t-tests, ANOVA and ordinary least-squares regression. Appropriate statistical software has been generally unavailable to investigators using serial records to study growth and development or treatment effects. In an earlier paper (Schneiderman and Kowalski, Am. J. Phys. Anthropol., 67 (1985) 323-333.) we described a suitable method, Rao's polynomial growth curve model (Rao, Biometrika, 46 (1959) 49-58), and provided an SAS computer program for the analysis of a single sample of complete longitudinal data. This method included the computation of an average polynomial growth curve, its 95% confidence hand, its coefficients and corresponding confidence intervals. The present paper extends this method to accommodate a sample with observations made at unequal time-intervals. Significant improvements in the accessibility, operation and user-friendliness of the program have been made, facilitated by recent advances in microcomputer technology. This stand-alone GAUSS program (no compiler necessary) runs on PC-compatibles and is available at a nominal cost. In this report we provide an overview of the statistical model, the general structure of the program, and give an example in which a developmental variable (human upper incisor angulation) is analyzed. Ease of installation and use, speed of execution and color graphic displays of growth curves and confidence bands, and most importantly, suitability to longitudinal data, make this method/program a potentially valuable tool for those interested in growth, development, and treatment effects in humans and other species. Some areas in which this method will have immediate applications are orthodontics, maxillofacial surgery and pediatrics. | en_US |
dc.format.extent | 650607 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Rao's polynomial growth curve model for unequal-time intervals: A menu-driven gauss program | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Public Health | en_US |
dc.subject.hlbsecondlevel | West European Studies | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.subject.hlbtoplevel | Social Sciences | en_US |
dc.subject.hlbtoplevel | Humanities | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Biostatistics, The University of Michigan, U.S.A. | en_US |
dc.contributor.affiliationum | Department of Biologic and Materials Science, School of Dentistry, The University of Michigan, U.S.A. | en_US |
dc.contributor.affiliationother | Department of Oral and Maxillofacial Surgery, Baylor College of Dentistry, U.S.A. | en_US |
dc.contributor.affiliationother | Department of Oral and Maxillofacial Surgery, Baylor College of Dentistry, U.S.A. | en_US |
dc.identifier.pmid | 1778639 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/29000/1/0000029.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0020-7101(91)90041-C | en_US |
dc.identifier.source | International Journal of Bio-Medical Computing | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.