PROPORTIONS: Two independent proportions
PROPORTIONS: Observed versus a reference proportion
PROPORTIONS: Paired measurements(repeated in one group)
PROPORTIONS: Bioequivalence
PROPORTIONS: Population Estimate
PROPORTIONS: Odds Ratio (CaseControl studies)
PROPORTIONS: Relative Risk (Cohort studies)
PROPORTIONS: Power Calculation
PROPORTIONS: Two independent proportions by cluster
MEANS: Two independent means
MEANS: Two paired means (repeated in one group)
MEANS: Observed versus a reference mean
MEANS: Repeated measurements
MEANS: Population Estimate
MEANS: OneWay Analysis of Variance
MEANS: Power Calculation
MEANS: Two independent means by cluster
OTHER: Survival analysis(Logrank Test)
OTHER: Correlation coefficient
OTHER: Kappa for a binary outcome
OTHER: Intraclass correlation coefficient
Alpha Risk



Test



Beta Risk



Confidence level



Group 1 proportion  
Group 2 proportion  
Group 2 size/Group 1 size ratio  
Dropout rate 
Null hypothesis proportion  
Minimum expected difference  
Dropout rate 
Proportion in first assessment  
Proportion in second assessment  
Dropout rate 
Proportion of reference  
Minimum expected difference  
Dropout rate 
Reference population size  
Expected proportion  
Desired precision of confidence level  
Item substitution rate 
Proportion of exposed in controls  
Minimum expected Odds Ratio  
Number Controls/Number Cases Ratio  
Dropout rate 
Event rate in NonExposed  
Minimum expected relative risk  
NonExposed/Exposed ratio  
Dropout rate 
Group 1 proportion  
Group 2 proportion  
Group 1 sample size  
Group 2 sample size 
Clusters available per group


People available per cluster


Expected mean proportion in nonexposed  
Expected mean proportion in exposed  
Dropout rate 
Group 1 size/Group 2 size ratio  
Common standard deviation  
Minimum expected difference  
Dropout rate 
Estimated standard deviation of differences


Standard deviation of the first measure


Standard deviation of the second measure


Correlation between measures, first group compared to second group


Minimum meaningful difference  
Dropout rate 
Common standard deviation  
Minimum expected difference  
Dropout rate 
Common standard deviation  
Mean difference between groups  
Dropout rate  
Correlation between first and second measurements  
Group 1 size/Group 2 size ratio 
Reference population size  
Estimated standard deviation  
Desired precision of confidence level  
Item substitution rate 
Number of groups  
Common standard deviation  
Minimum expected difference between groups  
Dropout rate 
Common standard deviation  
Group 1 mean  
Group 2 mean  
Group 1 sample size  
Group 2 sample size 
Clusters available per group


People available per cluster


Standard deviation within clusters  
Difference of means between exposed and non exposed  
Dropout rate 
Sample size ratio between groups  
Incidence of events in 1st group during the followup  
Desired Hazard ratio  
Dropout rate 
Pearson's correlation coeficient estimation  
Dropout rate 
Proportion of positive result by first rater  
Proportion of positive result by second rater  
Expected Kappa value  
Null hypothesis Kappa Value  
Dropout rate 
Expected ICC  
Null hypothesis ICC  
Number of ratings per subject  
Item substitution rate 
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