Stats >> WebLog >> Archive 2006, 200 entries

Also be sure to look at the list of weblog entries organized by topic and the archives for 2008, 2007, 2005 and 2004.

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December 2006 (11 entries)

• Stats: What percentage of medical decisions are based on good evidence? (December 29, 2006)
• Stats: Be sure to account for dropouts in your sample size calculation (December 29, 2006)
• Stats: Cherry picking the literature (December 20, 2006)
• Stats: Unusual advice about control charts (December 18, 2006)
• Stats: Should (Can?) Statistical Consultants, be Independent? (December 14, 2006)
• Stats: Using focus groups to bridge the gap between research and practice (December 14, 2006)
• Stats: Evidence-based development of medical guidelines (December 13, 2006)
• Stats: Mathematical and statistical challenges (December 13, 2006)
• Stats: Perfect isn't quite good enough (December 12, 2006)
• Stats: PharmaIQ talks (December 6, 2006)
• Stats: When are two events worrisome? (December 4, 2006)

November 2006 (15 entries)

• Stats: Manipulation of peer-review publications by pharmaceutical companies (November 21, 2006)
• Stats: A simple Bayesian model for accrual (November 17, 2006)
• Stats: The tension between scientific validity and ethical concerns (November 17, 2006)
• Stats: The complexities of having a variable number of measures per patient (November 16, 2006)
• Stats: Fitting a quadratic regression model (November 15, 2006)
• Stats: The danger of using humor on a web page (November 14, 2006)
• Stats: Incorporating risk factors into diagnostic test calculations (November 9, 2006)
• Stats: Technical Articles and Reports by David Heiser (November 7, 2006)
• Stats: Rebutting an expert reviewer (November 6, 2006)
• Stats: Medline is a very busy place (November 6, 2006)
• Stats: Materials for Signal Detection and Data Mining Strategies conference (November 6, 2006)
• Stats: Therapeutic orphans (November 3, 2006)
• Stats: Statistical concerns in research studies involving children (November 2, 2006)
• Stats: Additions and improvements to my web pages (November 2, 2006)
• Stats: A plea for open mindedness (November 2, 2006)

October 2006 (18 entries)

• Stats: Parametric tests for a ratio (October 27, 2006)
• Stats: Searching for pediatric articles on Medline (October 26, 2006)
• Stats: Adjusting a variable for age and sex (October 26, 2006)
• Stats: I wasn't making up data, I was imputing! (October 25, 2006)
• Stats: Is a 10% shortfall in sample size critical? (October 23, 2006)
• Stats: A simple example of a mixed linear regression model (October 18 ,2006)
• Stats: Academic freedom and the Institutional Review Board (October 17, 2006)
• Stats: Ethical concerns about research in children (October 17, 2006)
• Stats: Case studies for differences in research in children (October 16, 2006)
• Stats: Mathematical derivation of the odds form of Bayes theorem (October 16, 2006)
• Stats: Differences between children and adults (October 13, 2006)
• Stats: Frank Harrell's Philosophy of Biostatistics (Teaching resources, Internet, October 10, 2006)
• Stats: My ten favorite books, #8 (March 24, 2006)
• Stats: Calculations involving diagnostic tests using open source abstracts (October 5, 2006)
• Stats: Book reviews for Statistical Evidence (October 5, 2006)
• Stats: Ethics concerns about a placebo run-in (October 4, 2006)
• Stats: Wikipedia entry on sample (October 2, 2006)
• Stats: My second grant, part 3 (Model, Quality, October 2, 2006)

September 2006 (15 entries)

• Stats: Improvements to weblog categories (September 25, 2006)
• Stats: Is my confidence interval too wide? (September 21, 2006)
• Stats: Two talks for PharmaIQ (September 19, 2006)
• Stats: Resources for the use of Statistical Process Control in Healthcare (September 15, 2006)
• Stats: Special issues for research involving children (September 15, 2006)
• Stats: Pharmacogenetics Research Network (September 14, 2006)
• Stats: Top ten studies in EBM, Part 4 (September 14, 2006)
• Stats: Email discussion groups (September 13, 2006)
• Stats: My second grant, part 2 (Model, Quality, September 13, 2006)
• Stats: Ambiguous nature of the word "risk" (September 13, 2006)
• Stats: Graphics options in R (September 12, 2006)
• Stats: Bernadine Healy weighs in on EBM (September 11, 2006)
• Stats: Postmodern thought and evidence based medicine (September 7, 2006)
• Stats: Rules for rounding numbers (September 7, 2006)
• Stats: Continuous monitoring of the number needed to harm (September 2, 2006)

August 2006 (11 entries)

• Stats: Changing page breaks in SPSS (August 31, 2006, Model, Software)
• Stats: More on the Wikipedia entry on Binomial Confidence Interval (August 29, 2006)
• Stats: Citing statistical software in research papers (August 25, 2006)
• Stats: More on the Wikipedia entry on Binomial Confidence Interval (August 22, 2006)
• Stats: Wikipedia entry on Binomial Confidence Interval (August 21, 2006)
• Stats: Quality control humor (August 20, 2006, Model, Quality)
• Stats: An exact confidence interval for a binomial proportion (August 18, 2006)
• Stats: More than one thousand web pages now available on my site (August 16, 2006, Administrative details)
• Stats: A clumsy attempt at anonymization (August 15, 2006, Category: Privacy concerns)
• Stats: American Statistical Association Traveling Course committee (August 15, 2006)
• Stats: Sales figures for Statistical Evidence in Medical Trials (August 2, 2006)

July 2006 (10 entries)

• Stats: R libraries for sample size justification (July 28, 2006, Category: Sample size justification)
• Stats: Using a colloquial tone in a grant application (July 25, 2006, Plan, Grant)
• Stats: My second grant (July 26, 2006, Model, Quality)
• Stats: Selecting randomly from a list (July 18, 2006, Plan, Randomization)
• Stats: Questions a volunteer should ask before participating in a clinical trial (July 18, 2006, Ethics, Informed consent)
• Stats: Initial work on the KCALSI grant (July 17, 2006, Model, Quality)
• Stats: Fraudulent images in research (July 12, 2006, Evidence, Corroboration)
• Stats: When can a conservative trust a liberal information source (and vice versa) (July 10, 2006, Evidence, Corroboration)
• Stats: Possible sources of funding for my grant (July 6, 2006, Model, Quality control)
• Stats: Stopping rules for a Data Safety Monitoring Plan (July 5, 2006, Ethics, Early Stopping)

June 2006 (25 entries)

• Stats: Early detection of accrual problems in clinical trials (June 30, 2006, Model, Quality control)
• Stats: Some resources for Analysis of Means (June 30, 2006, Model, Quality control)
• Stats: What is block randomization (June 30, 2006, Plan, Randomization)
• Stats: Likelihood software for clinical trials (June 29, 2006, Model, Software)
• Stats: The problem with ranking ordinal scales (June 29, 2006, Model, Ordinal data)
• Stats: Resources for Item Response Theory (June 28, 2006, Model, Software)
• Stats: Colors for R graphs (June 28, 2006)
• Stats: Research on the web (June 27, 2006)
• Stats: More on propensity score models (June 26, 2006, Model, Propensity score)
• Stats: Slash and burn models (June 26, 2006, Model, Logistic regression)
• Stats: Using a charge of fraud to achieve a political end (June 23, 2006, Evidence, Corroboration)
• Stats: Withholding Personal Health Information from a patient (June 20, 2006, Ethics, Privacy)
• Stats: Auditing for data entry errors (June 20, 2006)
• Stats: Applications of the CUSUM chart (June 20, 2006, Model, Quality)
• Stats: Philosophy of teaching (June 20, 2006)
• Stats: Putting a human face on Evidence Based Medicine (June 20, 2006)
• Stats: Ethics and the fiduciary obligation (June 19, 2006, Ethics, Overview)
• Stats: (Seminar notes) Confidence intervals for a variance ratio (June 17, 2006)
• Stats: (Seminar notes) Adjustments for multiple comparisons (June 17, 2006)
• Stats: (Seminar notes) Missing values in a dose response model (June 17, 2006)
• Stats: (Seminar notes) Issues in the analysis of mixed linear models (June 17, 2006, Model, Mixed)
• Stats: (Seminar notes) Working with molecular biologists (June 17, 2006)
• Stats: New entry in the Chance Wiki (June 7, 2006)
• Stats: An amusing correlation (June 5, 2006, Model, Linear regression)
• Stats: Seminar on control charts and adverse events (June 5, 2006, Model, Quality)

May 2006 (19 entries)

• Stats: Why do we need research? (May 31, 2006)
• Stats: Methods for haplotype analysis (May 31, 2006, Model, Large scale)
• Stats: Can the p-value actually equal 1.0? (May 30, 2006, Evidence, Interpreting numbers)
• Stats: Monitoring accrual rates (May 30, 2006, Model, Quality)
• Stats: Relationship between the standard deviation and the sample size (May 26, 2006)
• Stats: Upcoming talks about control charts (May 25, 2006, Model, Quality)
• Stats: You won't have Steve Simon to kick around anymore (May 24, 2006, General)
• Stats: Using APR-DRGs for risk adjustment (May 24, 2006, Evidence, Internal validity)
• Stats: Another regular expression tip (May 23, 2006)
• Stats: Lost files (May 23, 2006)
• Stats: Using regular expressions to insert line breaks (May 18, 2006) (Model, Data management)
• Stats: Interesting stuff for the month of May (May 30, 2006) (Teaching resources, General)
• Stats: Searching high level sources first (May 17, 2006, Evidence, Searching)
• Stats: No tolerance for ambiguity (May 10, 2006)
• Stats: Using a web site to promote your book (May 10, 2006, Administrative details)
• Stats: Always ask why (May 8, 2006)
• Stats: Eighteenth Annual Applied Statistics in Agriculture Conference (May 4, 2006)
• Stats: Data mining and drug safety (May 4, 2006, Model, Quality control)
• Stats: What constitutes a conflict of interest? (May 4, 2006, Evidence, Corroboration)

April 2006 (16 entries)

• Stats: A simple application of propensity scores (April 26, 2006, Model, Linear regression)
• Stats: I want to write a grant (April 25, 2006, Model, Quality control)
• Stats: Surviving Statistical Spitting Matches (April 25, 2006)
• Stats: Giving credit where credit is due (April 19, 2006, Administrative details)
• Stats: Abstainer errors in study of alcohol abuse (April 19, 2006, Evidence, Internal validity)
• Stats: Univariate Model Based Clustering (April 18, 2006, Model, Large scale)
• Stats: Placing the symbol X-bar in a document (April 17, 2006, Teaching resources, General)
• Stats: Topic list is complete! (April 17, 2006, Administrative details)
• Stats: Three new koans (April 17, 2006)
• Stats: Interesting websites, publications and quotes for the month of April (updated April 12, 2006)
• Stats: The Healthcare Cost and Utilization Project (April 11, 2006, Model, Large scale)
• Stats: Examples of Pareto charts (April 5, 2006, Model, Quality)
• Stats: Interpretation of the correlation coefficient (April 4, 2006, Model, Linear regression)
• Stats: Can you use the coefficient of determination for categorical variables (April 4, 2006, Model, Linear regression)
• Stats: When is a co-authorship warranted? (April 4, 2006, Ethics, Overview)
• Stats: What is a beta coefficient? (April 4, 2006, Model, Linear regression)

March 2006 (23 entries)

• Stats: How many charts should I pull? (March 30, 2006, Category: Sample size justification)
• Stats: Contradictory research (March 30, 2006)
• Stats: Articles on Bayesian data analysis (March 30, 2006, Model, Bayesian)
• Stats: Small sample size, yet again (March 29, 2006, Category: Sample size justification)
• Stats: New koan page (March 29, 2006, Administrative details)
• Stats: The role of a statistician on an IRB (March 29, 2006, Ethics, Overview)
• Stats: Interesting websites, publications and quotes for the month of March (updated March 29, 2006)
• Stats: Statistical koan #4 (March 26, 2006)
• Stats: Examples of a fishbone diagram (March 24, 2006, Model, Quality control)
• Stats: My ten favorite books, #9 (March 24, 2006, Teaching resources, Books)
• Stats: Web seminar, Creating More Effective Graphics (March 24, 2006)
• Stats: My ten favorite books, #10 (March 17, 2006, Teaching resources, Books)
• Stats: Integrating internal and external evidence (March 17, 2006)
• Stats: An introductory book on SPSS (March 16, 2006, Teaching resources, Books)
• Stats: Statistical koan #3 (March 16, 2006, Teaching resources, General)
• Stats: Post hoc comparisons (March 15, 2006)
• Stats: Software for structural equations models (March 14, 2006, Model, Software)
• Stats: Poisson regression? Maybe not! (March 10, 2006, Model, Poisson regression)
• Stats: Propensity scores (March 10, 2006, Model, Linear regression)
• Stats: More on the Emily Rosa experiment (March 10, 2006)
• Stats: What is construct validity? (March 8, 2006, Model, Agreement)
• Stats: Best EBM articles in 2005 (March 6, 2006)
• Stats: Waiver of informed consent (March 3, 2006, Ethics, Informed consent)

February 2006 (12 entries)

• Stats: Statistical koan #2 (Feburary 28, 2006, Teaching resources, General)
• Stats: Statistical koans (February 27, 2006, Teaching resources, General)
• Stats: Three dimensional bar and pie charts (February 21, 2006)
• Stats: Difficulties in generalizing research (February 15, 2006, Evidence, External validity)
• Stats: Meta-analysis and diagnostic tests (February 14, 2006, Model, Meta-analysis)
• Stats: Checking a Chi-square test (February 13, 2006, Model, Logistic regression)
• Stats: What makes a good book? A sense of humor. (February 13, 2006, Teaching resources, Books)
• Stats: Interesting websites, publications and quotes for the month of February (February 13, 2006)
• Stats: Reporting serious adverse events (updated February 3, 2006, Model, Quality control)
• Stats: Economic evaluations (February 2, 2006, Model, Linear regression)
• Stats: An Ensembl search (February 1, 2006)
• Stats: Learning more about control charts (February 1, 2006, Model, Quality)

January 2006 (25 entries)

• How do the various clustering algorithms work? (January 31, 2006)
• Recent developments in searching for evidence (January 31, 2006, Evidence, Searching)
• More lessons learned the hard way (January 31, 2006)
• Stats: Interesting web sites, publications, and quotes for the month of January (January 31, 2006)
• Real-life examples of survey mistakes (January 31, 2006, Plan, Survey)
• A novel diagnostic test (January 26, 2006, Model, Diagnostic test)
• A simple function for a Biplot in R (January 24, 2006, Model, Large scale)
• Machine Learning tools in R (January 24, 2006)
• Randomization tests for paired data (January 24, 2006, Model, Randomization)
• Conditional Frailty Models (January 20, 2006)
• Multicollinearity is not a violation of assumptions (January 20, 2006, Model, Linear regression)
• Excluding zip codes with insufficient data (January 19, 2006, Model, Descriptive)
• Davis Balestracci seminar (January 19, 2006, Model, Quality control)
• Extending SPSS capabilities using Python (January 19, 2006, Model, Software)
• The Journal of Statistical Software (January 18, 2006, Model, Software)
• Categorizing my weblog entries (January 18, 2006, Administrative details)
• Characterizing reasons for refusal (January 17, 2006, Evidence, External validity)
• Handling dropouts in NNT/NNH calculations (January 16, 2006, Evidence, Interpreting numbers)
• Haplotype analysis (January 13, 2006, Model, Genetic data)
• First peek at the cover of my new book (January 12, 2006, General)
• Where to go, where to go (January 11, 2006, General)
• Extreme value distribution (January 9, 2006, Model, Theory)
• An entry in Chance News (January 5, 2006, General)
• The past year in my weblog (January 4, 2006, Administrative details)
• Transformation of a Likert scale (January 4, 2006)

[Go to full topic list] [Read current weblog entries] This web page was written by Steve Simon, edited by Steve Simon, and was last modified on 01/01/2008.