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Software-Tools (statistical tests, sample size):
Download of free-of-charge MS Excel tools
For statistical consulting and seminars, I have programmed few tools in MS Excel.
You can download them here free of charge. They should work with all MS Excel-Versions.
The files contain a short description of methodology, and an example.
Please notice: I try to program the tools to deliver valid results. They were checked to be free of viruses etc.
However, I cannot guarantee validity and free-of-virus status. There is no liability in terms of validity of results and free-of-virus state of the tools.
Unfortunalely, most of tools are described etc. in German. I try to translate the tools step by step. If you need an English version, please send me an E-mail. I will use your request to setup an English version :-)
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Excel-Tool Sensitivity, specificity, predictive values, (NEW:) diagnostic likelihood ratios (DLR+, DLR-) for 2x2-table, with exact confidence intervals. The tool calculates confidence intervals for predictive values in dependence whether study is case control study or not.(in English)
(2x2-table) (in German)
Correlation (Pearson): R, R2, significance (in German)
Test of FISHER (2x2 table, one-sided) (in German)
exact confidence interval for a probabilty (ratio) (in German)
reliability, agreement (kappa), consistency (McNemar-Test) for paired data with binary outcome (2x2 table) (in English)
for McNemar-Test (in German)
sample size for t-test (in German)
equivalence test for comparison of two means (in German)