IObit Uninstaller. WinRAR bit. Internet Download Manager. VLC Media Player. MacX YouTube Downloader. Microsoft Office YTD Video Downloader. Adobe Photoshop CC. VirtualDJ Avast Free Security. WhatsApp Messenger. Talking Tom Cat. Clash of Clans. Subway Surfers. TubeMate 3. Google Play. There are several statistical tests that the program supports, depending on the test family you choose.
It can perform correlation, regression, means, proportion, variances and other tests using five different types of power analysis. After setting the required input parameters which can also be automatically determined based on observed frequencies or probabilities , press the 'Calculate' button and you're done! The central and non-central distribution is displayed in a graph, while the output parameters are calculated in a separate grid.
The distribution plot can be copied to clipboard or saved for later reference. Fixed a bug that could occur under very specific circumstances when transferring an effect size from the effect size drawer to the main window. Changed the behaviour of all tests based on the binomial distribution. This change may lead to alpha values larger than the requested alpha values, but now we have the advantage that the upper and lower limits correspond to actual decision boundaries.
Note, however, that the change affects the results only when N is very small. Improvements in the logistic regression module: 1 improved numerical stability in particular for lognormal distributed covariates ; 2 additional validity checks for input parameters this applies also to the poisson regression module ; 3 in sensitivity analyses the handling of cases in which the power does not increase monotonically with effect size is improved: an additional Actual power output field has been added; a deviation of this actual power value from the one requested on the input side indicates such cases; it is recommended that you check how the power depends on the effect size in the plot window.
Fixed a problem in the exact test of Proportions: Inequality, two independent groups uncontional. Fixed a problem in the sensitivity analysis of the logistic regression. The drawers now appear correctly after clicking on the Determine button.
Fixed a problem in the test of equality of two variances. The problem did not occur when both sample sizes were identical. Added an options dialog to the repeated-measures ANOVA which allows a more flexible specification of effect sizes.
Fixed a problem in calculating the sample size for Fisher's exact test. The problem did not occur with post hoc analyses. Changing the number of covariates now correctly leads to the appropriate change in the denominator degrees of freedom.
Renamed the Repetitions parameter in repeated measures procedures to Number of measurements Repetitions was misleading because it incorrectly suggested that the first measurement would not be counted. Fixed a problem in the sensitivity analysis of the logistic regression procedure: There was an error if Odds ratio was chosen as the effect size. The problem did not occur when the effect size was specified in terms of Two probabilities. This option has been available for some time in the Windows version see View menu.
Added procedures to analyze the power of tests for single correlations based on the tetrachoric model, comparisons of dependent correlations, bivariate linear regression, multiple linear regression based on the random predictor model, logistic regression, and Poisson regression.
Added procedures to analyze the power of tests referring to single correlations based on the tetrachoric model, comparisons of dependent correlations, bivariate linear regression, multiple linear regression based on the random predictor model, logistic regression, and Poisson regression.
Fixed a problem in the X-Y plot for a range of values for Generic F tests. The degrees of freedom were not properly set in the graph, leading to erroneous plot values.
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