Source:http://linkedlifedata.com/resource/pubmed/id/12925330
Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
|
| pubmed:dateCreated |
2003-8-19
|
| pubmed:abstractText |
We consider testing whether the nonparametric function in a semiparametric additive mixed model is a simple fixed degree polynomial, for example, a simple linear function. This test provides a goodness-of-fit test for checking parametric models against nonparametric models. It is based on the mixed-model representation of the smoothing spline estimator of the nonparametric function and the variance component score test by treating the inverse of the smoothing parameter as an extra variance component. We also consider testing the equivalence of two nonparametric functions in semiparametric additive mixed models for two groups, such as treatment and placebo groups. The proposed tests are applied to data from an epidemiological study and a clinical trial and their performance is evaluated through simulations.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jan
|
| pubmed:issn |
1465-4644
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
4
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
57-74
|
| pubmed:dateRevised |
2007-11-15
|
| pubmed:meshHeading |
pubmed-meshheading:12925330-Anticonvulsants,
pubmed-meshheading:12925330-Child,
pubmed-meshheading:12925330-Computer Simulation,
pubmed-meshheading:12925330-Data Interpretation, Statistical,
pubmed-meshheading:12925330-Epilepsy,
pubmed-meshheading:12925330-Female,
pubmed-meshheading:12925330-Humans,
pubmed-meshheading:12925330-Indonesia,
pubmed-meshheading:12925330-Likelihood Functions,
pubmed-meshheading:12925330-Longitudinal Studies,
pubmed-meshheading:12925330-Male,
pubmed-meshheading:12925330-Models, Statistical,
pubmed-meshheading:12925330-Placebos,
pubmed-meshheading:12925330-Randomized Controlled Trials as Topic,
pubmed-meshheading:12925330-Respiratory Tract Infections,
pubmed-meshheading:12925330-Statistics, Nonparametric,
pubmed-meshheading:12925330-Xerophthalmia,
pubmed-meshheading:12925330-gamma-Aminobutyric Acid
|
| pubmed:year |
2003
|
| pubmed:articleTitle |
Hypothesis testing in semiparametric additive mixed models.
|
| pubmed:affiliation |
Department of Statistics, North Carolina State University, USA. dzhang2@stat.ncsu.edu
|
| pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|