Sample Size Calculation, Several Means, ANOVA, 2-Way
Sample size calculation for 2-way ANOVA with option for charts of sample size vs. RMSSE, sample size vs. alpha, and sample size vs. power.
General
Element Name | Description |
---|---|
Power Goal | Power goal to use in the sample size calculation (acceptable range 0.65 to 0.999). |
Number of Row Levels | Number of levels of the row effect (acceptable range 2 to 1000). |
Number of Column Levels | Number of levels of the column effect (acceptable range 2 to 1000). |
Row RMSSE | Row effect root mean square standardized effect. |
Column RMSSE | Column effect root mean square standardized effect. |
Interaction RMSSE | Row and column interaction effect root mean square standardized effect. |
Alpha Level | Alpha level (Type I error rate for the overall F test) (acceptable range 0.0001 to 0.25). |
Detail of computed results reported | Output level of detail selection: Sample Size Calculation produces Sample Size Calculation Spreadsheet; Smpl Size Calc plus Charts option produces, in addition, Sample Size vs. RMSSE chart, Sample Size vs. Alpha Level chart, and Sample Size vs. Power chart. |
Chart Parameters
Element Name | Description |
---|---|
Number of Steps. (For charts only) | Number of individual steps for which to calculate sample size between the starting and ending parameter values for Sample Size Charts (Min 4, Max 100). |
Starting Power. (For charts only) | Initial power value for calculation of Sample Size vs. Power chart (acceptable range 0.05 to 0.99). |
Ending Power. (For charts only) | Final power value for calculation of Sample Size vs. Power chart (acceptable range 0.10 to 0.999). |
Starting RMSSE. (For charts only) | Initial RMS standardized effect size for calculation of Sample Size vs. RMSSE chart (acceptable range 0.01 to 9). |
Ending RMSSE. (For charts only) | Final RMS standardized effect size for calculation of Sample Size vs. RMSSE chart (acceptable range 0.02 to 10). |
Starting Alpha Level. (For charts only) | Initial alpha level for calculation of Sample Size vs. Alpha Level chart (acceptable range 0.0001 to 0.2499). |
Ending Alpha Level. (For charts only) | Final alpha level for calculation of Sample Size vs. Alpha Level chart (acceptable range 0.0002 to 0.25). |
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