Stats >> WebLog >> Archive 2005, 198 entries

Also be sure to look at the list of weblog entries organized by topic and the archives for 2008, 2007, 2006 and 2004.

December | November | October | September | August | July | June | May | April | March | February | January

December 2005 (9 entries)

• Interesting web sites, publications, and quotes for the month of December (December 30, 2005)
• Vote for me (December 21, 2005)
• A controversial meta-analysis (December 20, 2005)
• Object oriented features of R (December 19, 2005)
• Confidence intervals are needed to evaluate clinical importance (December 15, 2005)
• Group Sequential Monitoring of Clinical Trials in R (December 13, 2005)
• Fractions are funny (December 13, 2005)
• The HapMap project (December 12, 2005)

November 2005 (7 entries)

• Withholding information (November 28, 2005)
• Hard learned lessons (November 25, 2005)
• Slow progress on my weblog (November 25, 2005)
• Stepwise regression to screen for covariates (November 25, 2005)
• Web page for Fisher's Exact test (November 17, 2005)
• Seventeen years between research and practice (November 2, 2005)
• Non-destructive data editing (November 2, 2005)

October 2005 (13 entries)

1. Interesting web sites, publications, and quotes for the month of October (October 25, 2005)
2. RMA normalization of microarrays (October 24, 2005)
3. A nice definition of anecdotal evidence (October 24, 2005)
4. Searching for information about the molasses with milk enema (October 15, 2005)
5. A totally negative microarray experiment (October 14, 2005)
6. Two nice R libraries (October 14, 2005)
7. The fate of retracted articles (October 14, 2005)
8. A nonspecific diagnostic test (October 13, 2005)
9. More on discovering gene information (October 12, 2005)
10. A simple trick in R (October 11, 2005)
11. Responding to a critique of meta-analysis (October 10, 2005)
12. Quality control exercises, Part 2 (October 5, 2005)
13. Sample size for a binomial confidence interval (October 3, 2005)

September 2005 (12 entries)

1. An error slips through the peer review process (September 19, 2005)
2. Free statistics software (September 15, 2005)
3. Dishonesty in medical research (September 15, 2005)
4. Self experimentation (September 13, 2005)
5. Science mentoring (September 12, 2005)
6. Two articles debating equipoise (September 9, 2005)
7. When the F test is significant, but Tukey is not (September 9, 2005)
8. Interesting web sites, publications, and quotes for the month of September (last updated September 9, 2005)
9. Naming conventions for genes, proteins, etc. (September 8, 2005)
10. Finding more information about a gene (September 6, 2005)
11. Two articles in the Chance Wiki (September 6, 2005)
12. Quality control exercises (September 1, 2005)

August 2005 (17 entries)

1. Statistical Analysis of Microarrays by Insightful (August 31, 2005)
2. Interesting web sites, publications, and quotes for the month of August (August 31, 2005)
3. What alternative medicine can teach us about evidence-based medicine (August 23, 2005)
4. Publicly available microarray data (August 18, 2005)
5. What's New in SPSS version 14.0 (August 17, 2005)
6. Another disaster averted (August 16, 2005)
7. IRBs and scientific validity (August 12, 2005)
8. Sample size for a binary endpoint (August 12, 2005)
9. Case cohort design (August 11, 2005)
10. Dates in Excel and R (August 10, 2005)
11. An inefficient approach to randomization (August 10, 2005)
12. Reporting of adverse events (August 5, 2005)
13. Converting an odds ratio to a relative risk (August 3, 2005)
14. A third search for the evidence (August 2, 2005)
15. Publication in the ChanceWiki (August 2, 2005)
16. Information content of a continuous distribution (August 1, 2005)
17. Allegations of scientific misconduct (updated August 1, 2005)

July 2005 (14 entries)

1. Overview of evidence-based-medicine (July 29, 2005)
2. Expected value and moments (July 29, 2005)
3. More on normalization (July 28, 2005)
4. Moving R objects (July 28, 2005)
5. Permutation tests for microarrays (July 27, 2005)
6. Analysis of Gene Expression Data Short Course (July 26, 2005)
7. Merging in R (July 26, 2005)
8. Registration of clinical trials (July 22, 2005)
9. More on regular expressions (July 21, 2005)
10. Interesting web links and quotes for the month of May (updated May 23, 2005)
11. Very low values from Cronbach's Alpha (July 19, 2005)
12. Counterpoint on Google Scholar (July 19, 2005)
13. The difference between absolute risks and relative risks (July 15, 2005)
14. Confidence interval for a correlation coefficient (July 11, 2005)

June 2005 (11 entries)

1. Examples of confidence intervals (June 28, 2005)
2. Dumping data from R to a text file (June 27, 2005)
3. What does a 60% drop mean? (June 20, 2005)
4. Step-down procedures for multiple comparisons (June 16, 2005)
5. Interesting quotes, web pages, and publications for the month of June (updated June 21, 2005)
6. More on the retroactive prayer study (June 10, 2005)
7. Some articles on meta-analysis (June 10, 2005)
8. Another search for evidence (June 7, 2005)
9. When can I stop my CQI study? (June 6, 2005)
10. Taking charges of conflicting interest too far (June 4, 2005)
11. Information theory and microarrays (June 1, 2005)

May 2005 (25 entries)

1. The paired availability design (May 31, 2005)
2. Application of the ROC curve to microarray data (May 26, 2005)
3. Changes to STAT-L/sci.stat.consult (May 25, 2005)
4. Dimension reduction in a microarray experiment (May 25, 2005)
5. Importing value labels from Access into SPSS (May 24, 2005)
6. When one group only has a single observation (May 24, 2005)
7. Another open site closes (May 23, 2005)
8. Interesting web links and quotes for the month of May (updated May 23, 2005)
9. Adjusting for covariate imbalance (May 20, 2005)
10. Computing normal probabilities (May 19, 2005)
11. The S+ CorrelatedData Library (May 19, 2005)
12. What is critical thinking? (May 17, 2005)
13. More on searching the literature (May 17, 2005)
14. Standard deviation versus standard error (May 16, 2005)
15. A disaster averted (May 16, 2005)
16. Geometric distribution (May 16, 2005)
17. Hedge's G (May 13, 2005)
18. Post hoc power is never justified (May 13, 2005)
19. Confidence intervals around a safety level (May 11, 2005)
20. Patients' reactions to finding out they were in the placebo group (May 11, 2005)
21. String manipulations in R (May 10, 2005)
22. Preserving spacing in html code (May 6, 2005)
23. Testing for bimodality (May 3, 2005)
24. Searching the literature (May 3, 2005)
25. Meta-analysis talk (May 2, 2005)

April 2005 (17 entries)

1. PubMed tags (April 28, 2005)
2. Determining the optimal threshold for a diagnostic test (April 27, 2005)
3. Searching the Internet (April 26, 2005)
4. MedStats discussion group (April 25, 2005)
5. More than 90% censored values (April 22, 2005)
6. Microarray data analysis, again (April 22, 2005)
7. Interesting web links and quotes for the month of April (April 20, 2005)
8. Incidence density ratio (April 19, 2005)
9. Measuring agreement (April 19, 2005)
10. S-plus version 7 (April 19, 2005)
11. Profile analysis and MANOVA (April 18, 2005)
12. Presenting Numbers, Tables, and Charts (April 15, 2005)
13. Tolerance limits (April 15, 2005)
14. Fair Use of copyrighted material (April 15, 2005)
15. I abhor Lilliefor and other tests of normality (April 14, 2005)
16. Summing ordinal data (April 5, 2005)
17. Do I have enough data after 24 months of time? (April 5, 2005)

March 2005 (30 entries)

1. Where is the confidence interval? (March 31, 2005)
2. Interesting web links for the month of March (March 30, 2005)
3. Open-ended questions on a survey (March 25, 2005)
4. Non-random samples (March 25, 2005)
5. More on information theory models (March 24, 2005)
6. Inferential and descriptive statistics (March 24, 2005)
7. Media interview tips (March 23, 2005)
8. More on conflicts of interest (March 23, 2005)
9. Surrogate outcomes (March 23, 2005)
10. A collection of randomized and non-randomized studies (March 22, 2005)
11. Using Mathematica and Matlab for Statistics (March 22, 2005)
12. Meta-analysis for a diagnostic test (March 22, 2005)
13. Stratified Cox regression models (March 22, 2005)
14. Coming soon (March 22, 2005)
15. Language resources (March 22, 2005)
16. Digitizing a graph (March 15, 2005)
17. Selective reporting of research findings (March 14, 2005)
18. Quality of published research (March 14, 2005)
19. Publicon software (March 14, 2005)
20. Cumulative meta-analysis (March 11, 2005)
21. Clinical importance (March 11, 2005)
22. More articles on microarrays (March 10, 2005)
23. Seminar notes, S-PLUS Clinical Safety Miner (March 10, 2005)
24. Quotes for the month of March (March 10, 2005)
25. Sample size calculation for a nonparametric test (March 8, 2005)
26. Technology to end spam (March 8, 2005)
27. Review articles on microarrays (March 7, 2005)
28. PowerPoint Counterpoint (updated March 2, 2005)
29. Growth curves (March 1, 2005)
30. The costs of a false positive test (March 1, 2005)

February 2005 (23 entries)

1. More on the top ten studies in EBM (updated February 28, 2005)
2. Adjusting for a baseline measurement (February 28, 2005)
3. Taguchi methods (February 22, 2005)
4. Effective communication about randomized clinical trials (February 22, 2005)
5. Quotes for February (updated February 21, 2005)
6. Developing good practice guidelines (February 18, 2005)
7. Recommended web links for the month of February (last updated February 18, 2005)
8. Stats: Report cards (February 16, 2005)
9. Side effects of Cox-2 inhibitors (February 15, 2005)
10. Public access to publications from NIH-funded research (February 15, 2005)
11. Moderator variables (February 15, 2005)
12. Another top ten study in EBM (February 14, 2005)
13. More on the weaknesses of randomized trials (February 14, 2005)
14. Relationship between sample size and p-values (February 14, 2005)
15. Optimization using the MM algorithm (February 14, 2005)
16. Clinical importance (February 11, 2005). This weblog entry is superseded by the March 11 entry.
17. Control charts for monitoring mortality rates (February 11, 2005)
18. Continuous variables in a logistic regression model (February 9, 2005)
19. A small p-value does not mean a large difference (February 8, 2005)
20. Best EBM methods or teaching papers in 2004 (February 3, 2005)
21. Coding race/ethnicity (February 3, 2003)
22. Sampling the entire population (February 3, 2005)
23. A surprising application of the harmonic mean (February 1, 2005)

January 2005 (20 entries)

1. Placing consecutive dates in a column of an SPSS file (January 26, 2005)
2. Re-weighting the data (January 25, 2005)
3. Quotes for the month of January (last update January 24, 2005)
4. Ethical principles for Complementary and Alternative Medicine Research (January 24, 2005)
5. Interesting web links for the month of January (last updated January 21, 2005)
6. Summary Receiver Operating Characteristic Curve (January 21, 2005)
7. How good is your intuition? (January 21, 2005)
8. Adjusted odds ratios (January 20, 2005)
9. The Digital Object Identifier (January 19, 2005)
10. Testing baseline imbalance in a randomized study (January 19, 2005)
11. Confusion about p-values (January 18, 2005)
12. More thoughts on equipoise (January 17, 2005)
13. Ten research studies that anyone teaching EBM should be familiar with (January 17, 2005)
14. The ethics of randomization (January 14, 2005)
15. Small relative risks (January 13, 2005)
16. Forest plots (January 12, 2005)
17. Odds ratios less than one (January 6, 2005)
18. Two cautionary tales about data mining (January 6, 2005)
19. Spectrum Bias (January 4, 2005)
20. Monetary incentives (January 3, 2005)

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This webpage was written by Steve Simon and was last modified on 2008-07-08. Send feedback to ssimon at cmh dot edu or click on the email link at the top of the page.