Articles

Table of Contents

Statistical Computing and Graphics

Biostatistics

Name of Article	Click on Link*	Contributor
Common Biostatistical Problems	Connect	CTSpedia
Correlation	Connect	CTSpedia
Current sample size conventions: Flaws, harms, and alternatives	Connect	CTSpedia
Estimation versus Hypothesis Testing	Connect	CTSpedia
Geocoding: What it is and why is it necessary	Connect	CTSpedia
Infinite estimates	Connect	CTSpedia
Intention to Treat Analysis		Gerard E. Dalllal, PhD
Interpreting Results: How to phrase conclusions that reflect estimates and confidence intervals, not just p-values	Connect	CTSpedia
Interval-Censored Survival Analysis	Connect
Logarithmic Transformation	Connect	CTSpedia
Logistic Regression		Gerard E. Dalllal, PhD
Nonparametric Statistics		Gerard E. Dalllal, PhD
P-value Fallacy	Connect	CTSpedia
Poisson Regression		Gerard E. Dalllal, PhD
Random Samples / Randomization		Gerard E. Dalllal, PhD
Significance Testing as Perverse Probabilistic Reasoning		CTSpedia
Student's t Test for Independent Samples		Gerard E. Dalllal, PhD
Table 1 Mistakes	Connect
What is a p-value?		Ronald Thisted

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Multiple Linear Regression

Name of Article	Click on Link*	Contributor
The Extra Sum of Squares Principle		Gerard E. Dalllal, PhD
How to Read the Output From Multiple Linear Regression Analyses		Gerard E. Dalllal, PhD
Introduction to Multiple Linear Regression		Gerard E. Dalllal, PhD
Introduction to Regression Models		Gerard E. Dalllal, PhD
The Meaning of Regression Coefficents		Gerard E. Dalllal, PhD
The Most Important Lesson You'll Ever Learn About Multiple Linear Regression Analyses		Gerard E. Dalllal, PhD
Partial Correlation Coefficients		Gerard E. Dalllal, PhD
Simplifying A Multiple Regression Equation		Gerard E. Dalllal, PhD
Student's t Test for Independent Samples Is A Special Case of Simple Linear Regression		Gerard E. Dalllal, PhD
Using the Bootstrap to Simplify a Multiple Regression Equation		Gerard E. Dalllal, PhD
What Does Multiple Regression Look Like?		Gerard E. Dalllal, PhD
What Does Multiple Regression Look Like? (Part 2)		Gerard E. Dalllal, PhD
Which Predictors Are More Important?		Gerard E. Dalllal, PhD
Why Is a Regression Line Straight?		Gerard E. Dalllal, PhD

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Analysis of Variance

Name of Article	Click on Link*	Contributor
Analysis of Variance	Connect	CTSpedia
How to Read the Output From One-Way Analysis of Variance		Gerard E. Dalllal, PhD
Multiple Comparisons		Gerard E. Dalllal, PhD
Labeling Similar Means After Performing an Analysis of Variance		Gerard E. Dalllal, PhD
Single Factor ANOVA		Gerard E. Dalllal, PhD
A web page that creates the labels		Gerard E. Dalllal, PhD

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Controversies

Data Management

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Ontology Mappers

Name of Site	Click on Link*	Contributor
Draft - Taxonomy Collaboration - Vanderbilt		Department of Biostatistics, Vanderbilt University
NCBO Bioportal		National Center for Biomedical Ontology's Bioportal Site

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Case Studies

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Grants and Awards

• NIH Mentored Career Development (K) Awards

Writing

• Interpreting Results: How to phrase conclusions that reflect estimates and confidence intervals, not just p-values.
• Reporting Power: Example of how to reply to requests for post-hoc power calculations, or for a priori power calculations for a completed study.
• Reporting Follow-up Time: Describing how long participants were followed for a study with a survival or time-to-event outcome.
• Use of "Significant" alone in publications: Why to avoid ever using the word "significant" alone when reporting a study that includes statistical analysis.
• Giving appropriate precision: How to present results with enough, but not too much, precision.