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D. Keith Williams, Ph.D., M.P.H.

Associate Professor

College of Public Health

Department of Biostatistics, Room 3214

Tel. 501.526.6721

Email:williamsdavidk@uams.edu

 

JSM 2009

SUGI 2008 Logistic Power LRpowerCorr Macro Manuscript

LRpowerCorr10 Powerpoint Presentation

Alpha Versions LRpowerCorr10, LRpowerCorr10C, and QuickPower2 SAS Macros

 

Williams, Bursac, Hosmer JSM 2004 Toronto

 

 

Hello Biostat 1 Students. Please see below for course information.

The updated 2009 syllabus will be available in August.  The 2008 syllabus is very similar except for the dates for those who wish to preview.

 

COPH-Biostat 1 PBHL 5013/BIOM 5013 Syllabus (2009) Monday Section

 

COPH-Biostat 1 PBHL 5013/BIOM 5013 Syllabus (2009) Tuesday Section

 

Course Information

Course number: Biom 5013 (Section 1 or 2)/ PBHL 5013 (Section 1 or 2) 

Course name: Biostatistics I

Meeting time: Monday 1 – 4 pm for those enrolled in Section 1 (Begins Aug 17)

                       Tuesday, 5:30-8:30 pm for those enrolled in Section 2 (Begins Aug 18)

Meeting place: Ed II, Room 8/121

 

Required textbook:

 

Mendenhall, Beaver (2008). Introduction to Probability and Statistics 13th  ed.

ISBN 978-0495389538

Earlier editions of the book are not recommended.

 

 

 

PBHL-BIOM 5023 Syllabus Spring 2009

5

Class handout Chapter 5 (1-8-09)

Answers to selected textbook problems

SAS print outs for chapter 5 homework (1-15-09)

Handout for chapter 6 7 8 class discussion (1-15-09)

SAS print outs for chap 6 7 8 homework (1 22 09)

Handout for chapter 9 class discussion (1-22-09)

Partial F test homework worksheet  (posted 1 23 09)

Interaction and dummy variables for class discussion (1 29 09)

 

SAS printout to go with first page of worksheet for 1 29 09 (quadratic)

 

Key for interaction and dummy var worksheet given on 1 29 09 (posted 2 4 09)

 

Class notes for 2 5 09 meeting

 

Second set of class notes 2 5 09 (Regression diagnostics)

 

Class notes 2 12 09 (Model Selection Approaches)

 

Model Selection Example 2 26 09

 

Odds Ratio 2 x 2 case 2 26 09

 

Logistic regression 1 notes 2 26 09

 

Logistic regression 2 notes 2 26 09

 

Homework problems for regression diagnostics and model selection:

Please work problems 27 and 29 that start on page 337 and problems

3, 9 (omit C), 11 that start on page 408.

 

Logistic regression worksheet for topics after 3 5 09

 

SAS printout to do the worksheet above

 

Key for logistic worksheet 3 5 09

 

Class notes for 3 5 09

 

Class notes.  AOV one way and RBD 3 12 09 (text book examples)

 

Class notes.  AOV one way and RBD part 2 3 19 09

 

HW problems from book

 

Chapter 17 1(b)(f) 2(a)(b)(f) 4(a)(b)(c)(d) 17 (b-h) 19(b-d)

 

Chapter 18  1(a-e, j)  11(all)

 

Handwritten notes for chap 17 – 18 problems not in book

 

Intro to factorial arrangement of treatments 1

 

Intro to factorial arrangement of treatments 2

 

Please print the following Word files and bring them to class on April 16.

Don’t attempt to complete them…we will be working them in class.

 

SAS code

 

Worksheet for one way and two way AOV

 

Key for SAS computer lab exercise 4 15 09

 

Power point presentation on power and sample size 4 23 09

 

Worksheet for power and sample size 4 23 09

 

Repeated measures one group 4 23 09. Rabbit data

 

Proc mixed covariance structure list  

 

Example of 2 factor experiment with repeat on one factor

 

Power and Sample Size tables.  This is identical to the one passed out in

class. Some students could not find the v1 = 2 page in their packet.

 

Key to power and sample size worksheet.

 

Example of two factor with repeat on one factor with no interaction 4 30 09

 

Example of two factor with repeat on one factor WITH interaction 4 30 09

 

Computer lab exercise with code plus output.  THERE IS NO NEED TO

PRINT THIS OUT FOR 4 30 09 CLASS MEETING.

 

Worksheet for repeated measure study designs 4 30 09.  There is no need to

Print this for 4 30 09 class meeting.

 

Key for repeated measure worksheet  (Sorry. There is some light print)

 

Key for repeated measure worksheet with marked output

 

bryce 1

Courses

PBHL 5013 – Biostat I. (FALL)

Powerpoint notes for Chapters 1 and 2

Powerpoint Files from Mendenhall

Relative Frequency example

Poisson Profile

Bernoulli Profile  

Worksheets

Worksheet 1     

WS 1 Key

PP Notes week 2          

Worksheet 2             

 100_0074

WS 2 Key

Worksheet 3

WS 3 Key

 

Review Worksheet Ch 1 – Ch 5 (Sept 8, 2009)

 

Worksheet 4

WS 4 Key

Worksheet 5

WS 5 Key

Worksheet 6

WS 6 Key

Worksheet 7

WS 7 Key

Hypothesis Test and CI formula sheet

AOV class handout Nov 9, 2009

AOV class handout Nov 9, 2009 Key

AOV Tukeys Procedure example

Key to Chapter 11 analysis of variance homework

Example of Correlation and Regression 11 16 09 Please bring to class

Intro to Regression handout and worksheet Please bring to class

Another Regression worksheet (please bring to class)

Key for the Another Regression worksheet

Chapter 14 Notes and Worksheets (please bring to class)

Nonparametric Problems 15.33 and 15.37

Taos bump run

Take care of your wrist.  This hardware is not fun to have installed.

w6

 

Tour of Cal winner

DSCN0706

PBHL 5033 – Biostat III. (FALL)

maah daah hey scene

Statistical Resources

American Statistical Association

Interactive Statistical Calculations

Online Stat Courses from Statistics.Com

SAS Starter Kit UCLA

R. A. Fisher

Karl Pearson

 

Books and Software

ONLINE SAS EDUCATION FROM UCLA (HIGHLY RECOMMENDED)

Amazon.com

SAS

NCSS-PASS

PLS example

SAS Nonparametric Longitudinal Macros

Hosmer Expedition Oct 2004 A

University of Arkansas for Medical Sciences

UAMS College of Public Health

UAMS Biostatistics

Mathematics Refresher Site

William Gossett

GS

Betsy in the Wichita Mountains

benbarrykeithboots

Research Interests

Parametric and nonparametric methods for longitudinal methods and repeated measures, missing data problems, mixed models, statistical computing, and simulation.

Recent Publications

Williams D. Keith.  A Generalized test of the Magnitude of Parametric Assumption Departure for Linear Models in Longitudinal Studies. 2004 Proceedings of the American Statistical Association, Biometrics Section. pp. 3189-3191, 2005.

Gubbins PO, McConnell SA, Gurley BJ, Fincher TK, Franks AM, Williams DK, Penzak SR, Saccente M. Influence of grapefruit juice on the systemic availability of itraconazole oral solution in healthy adult volunteers. Pharmacotherapy 24:460-7, 2004.

Kaiser JR, Gauss CH, Williams DK. Surfactant administration acutely affects systemic and cerebral hemodynamics and gas exchange in very low birth weight infants. J Pediatr 144(6):809-814, 2004.

Williams DK, Austen MA. A performance comparison of nonparametric versus generalized linear models in longitudinal studies. 2003 Proceedings of the American Statistical Association, Biometrics Section. pp. 4543-4547, 2004.

 

Bill J. Gurley, PhD, Stephanie F. Gardner, PharmD, EdD, Martha A. Hubbard, MS, D. Keith Williams, PhD, W. Brooks Gentry, MD, Julie Carrier, PhD, Ikhlas A. Khan, PhD, David J. Edwards, PharmD, and Amit Shah.  In vivo assessment of botanical supplementation on human cytochrome P450 phenotypes: Citrus aurantium, Echinacea purpurea, milk thistle, and saw

Palmetto.  Clinical Pharmacology & Therapeutics 2004;76(5):428-40

Wiseman, Eve J., Williams, D.K., McMillan, D.E. Effectiveness of payment for reduced carbon monoxide levels and non-contingent payment on smoking behaviors in cocaine-abusing outpatients wearing nicotine or placebo patches. Experimental and Clinical Psychopharmacology in press. 

Pyne, Jeffrey M., Rost, Kathryn M., Farahati , Farah, Tripathi, Shanti P. Smith, Jeffrey Williams, D. Keith, Fortney, John, and Coyne, James C. One size fits some: the impact of patient treatment attitudes on the cost-e.ectiveness of a depression primary-care intervention.

Psychological Medicine, 2004, 34, 1–16. f 2004 Cambridge University Press.

 

 

 

 

 

 

 

Guide for Technical Reports

Regression Power and Sample Size 2008

Gatsonis Tables

Mailing Address:

 

D. Keith Williams M.P.H. Ph.D.

UAMS

College of Public Health

Department of Biostatistics

4301 W. Markham St., Slot 781

Little Rock, AR 72205-7199

 


 

Contact Information

 

4301 West Markham, #781

Little Rock, AR 72205-7199

Phone: 501.296.1556

Fax: 501.526.6729

http://www.uams.edu/biostat

Biostatistics Email

Biostatistics Webmaster

Last updated: 10/17/2007

 

lto:jdthostenson@uams.edu" Biostatistics Webmaster

Last updated: 10/17/2007