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 (Case-Control 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: One-Way Analysis of Variance

MEANS: Power Calculation

MEANS: Two independent means by cluster

OTHER: Survival analysis(Log-rank 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   
Drop-out rate   
Null hypothesis proportion   
Minimum expected difference   
Drop-out rate   
Proportion in first assessment   
Proportion in second assessment   
Drop-out rate   
Proportion of reference   
Minimum expected difference   
Drop-out 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   
Drop-out rate   
Event rate in Non-Exposed   
Minimum expected relative risk   
Non-Exposed/Exposed ratio   
Drop-out rate   
Group 1 proportion   
Group 2 proportion   
Group 1 sample size   
Group 2 sample size   
How many clusters are available per group?   
Expected mean proportion in non-exposed   
Expected mean proportion in exposed   
Proportion of variance among clusters (ICC)   
Drop-out rate   
Group 1 size/Group 2 size ratio   
Common standard deviation   
Minimum expected difference   
Drop-out 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   
Drop-out rate   
Common standard deviation   
Minimum expected difference   
Drop-out rate   
Common standard deviation   
Mean difference between groups   
Drop-out 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   
Drop-out rate   
Common standard deviation   
Group 1 mean   
Group 2 mean   
Group 1 sample size   
Group 2 sample size   
How many clusters are available per group?   
Proportion of variance among clusters (ICC)   
Variance within clusters   
Difference of means between exposed and non exposed   
Drop-out rate   
Sample size ratio between groups   
Incidence of events in 1st group   
Incidence of events in 2nd group   
Desired Hazard ratio   
Drop-out rate   
Pearson's correlation coeficient estimation   
Drop-out rate   
Proportion of positive result by first rater   
Proportion of positive result by second rater   
Expected Kappa value   
Null hypothesis Kappa Value   
Drop-out rate   
Expected ICC   
Null hypothesis ICC   
Number of ratings per subject   
Item substitution rate