Zobrazeno 1 - 10 of 139 pro vyhledávání: '"Clifford Blair"'
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Two-Sided Equivalence Testing Of The Difference Between Two Means
Autor: Stephen R. Cole, R. Clifford Blair
Publikováno v: Journal of Modern Applied Statistical Methods. 1:139-142
Studies designed explicitly to examine the equivalence of two (or more)treatments are increasingly common in so­ cial and biomedical research. In such studies the null hy­ pothesis maintains that the difference between treatments is at least of som
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f720fa5b1cbca1e9175d1e4fc01f9c4d
https://doi.org/10.22237/jmasm/1020255540
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6
Recall bias in a prospective cohort study of acute time-varying exposures
Autor: Kevin E. Kip, Frances Cohen, Roy W. Beck, R. Clifford Blair, Kirk R. Wilhelmus, Stephen R. Cole, Donald L. Patrick
Publikováno v: Journal of Clinical Epidemiology. 54:482-487
Recall bias is possible in a prospective cohort study when exposure status is transient and must be periodically recalled, and ascertainment occurs after symptom onset. We know of no published demonstration of such bias at play in a prospective cohor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::521a02db71cf8bb4017f5e1586540f6b
https://doi.org/10.1016/s0895-4356(00)00310-3
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7
Parametric and non-parametric tests for the overall comparison of several treatments to a control when treatment is expected to increase variability
Autor: Deborah J. Rumsey, James Troendle, R. Clifford Blair, Pamela S. Moke
Publikováno v: Statistics in Medicine. 16:2729-2739
We consider the problem of making an overall comparison of several treatments to a control where experimental units are randomly assigned to either the 'control' group which receives no treatment or to one of k - 1 'treatment' groups. We assume that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb57ebb9a81c8d32ebb1a79e63268b2d
https://doi.org/10.1002/(sici)1097-0258(19971215)16:23<2729::aid-sim694>3.0.co
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CONTROL OF FAMILYWISE ERRORS IN MULTIPLE ENDPOINT ASSESSMENTS VIA STEPWISE PERMUTATION TESTS
Autor: Roy W. Beck, R. Clifford Blair, James Troendle
Publikováno v: Statistics in Medicine. 15:1107-1121
We describe permutation based sequentially rejective multiple comparison procedures useful in multiple endpoint assessments. We used Monte Carlo methods to compare the power of these newly devised tests to that of tests due to Holm and Rom as well as
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bd26bea4b4dd02dbc09dc36c289bd53
https://doi.org/10.1002/(sici)1097-0258(19960615)15:11<1107::aid-sim222>3.0.co
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9
Gender and Ethnic Differences in Survival in a Cohort of HIV Positive Clients
Autor: Clifford Blair, Manuel Bayona, Peter E. Bright, Donna K. Arnett
Publikováno v: Ethnicity & Health. 1:77-85
OBJECTIVES The purpose of this study was to examine gender and ethnic differences in survival of persons receiving treatment for HIV infection to determine if differences existed, and if they did, to assess the possibility of explaining these differe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8194d8ffbfe99d3930d505d6ff1eed7e
https://doi.org/10.1080/13557858.1996.9961772
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10
Improved bonferroni procedures for testing overall and pairwise homogeneity hypotheses
Autor: Clifford Blair, Yosef Hochberg
Publikováno v: Journal of Statistical Computation and Simulation. 51:281-289
Simes' (1986) improved Bonferroni test is verified by simulations ∗to control the α-level when testing the overall homogeneity hypothesis with all pairwise t statistics in a balanced parallel group design. Similarly, this result was found to hold
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20305fcb5c57bd621edf2a516975a85c
https://doi.org/10.1080/00949659508811638
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