### 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

### 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**(Enter values 0 to 1)

**Group 2 proportion**(Enter values 0 to 1)

**Group 2 size/Group 1 size ratio**

**Drop-out rate**(Enter values 0 to 1)

**Null hypothesis proportion**(Enter values 0 to 1)

**Minimum expected difference**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Proportion in first assessment**(Enter values 0 to 1)

**Proportion in second assessment**(Enter values 0 to 1)

**Drop-out rate**(Enter values 0 to 1)

**Proportion of reference**(Enter values 0 to 1)

**Minimum expected difference**(Enter values 0 to 1)

**Drop-out rate**(Enter values 0 to 1)

**Reference population size**

**Expected proportion**(Enter values 0 to 1)

**Desired precision of confidence level**(Enter values 0 to 1)

**Item substitution rate**(Enter values 0 to 1)

**Proportion of exposed in controls**(Enter values 0 to 1)

**Minimum expected Odds Ratio**(Enter values > 0)

**Number Controls/Number Cases Ratio**

**Drop-out rate**(Enter values 0 to 1)

**Event rate in Non-Exposed**(Enter values 0 to 1)

**Minimum expected relative risk**(Enter values > 0)

**Non-Exposed/Exposed ratio**

**Drop-out rate**(Enter values 0 to 1)

**Group 1 proportion**(Enter values 0 to 1)

**Group 2 proportion**(Enter values 0 to 1)

**Group 1 sample size**

**Group 2 sample size**

**Expected number of participants per cluster**

**Minimum expected difference**(Enter values > 0)

**Population prevalence**(Enter values > 0)

**Standard deviation within clusters**(Enter values > 0)

**Standard deviation between clusters**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Group 1 size/Group 2 size ratio**

**Common standard deviation**(Enter values > 0)

**Minimum expected difference**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**For this calculation the standard deviation of differences is needed, is it known?**

**Estimated standard deviation of differences**(Enter values > 0)

**Standard deviation of the first measure**(Enter values > 0)

**Standard deviation of the second measure**(Enter values > 0)

**Correlation between measures, first group compared to second group**

**Minimum meaningful difference**(Enter values > 0)

**Drop-out rate**

**Common standard deviation**(Enter values > 0)

**Minimum expected difference**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Common standard deviation**(Enter values > 0)

**Mean difference between groups**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Correlation between first and second measurements**

**Group 1 size/Group 2 size ratio**(Enter values > 0)

**Reference population size**

**Estimated standard deviation**(Enter values > 0)

**Desired precision of confidence level**(Enter values 0 to 1)

**Item substitution rate**(Enter values 0 to 1)

**Number of groups**

**Common standard deviation**(Enter values > 0)

**Minimum expected difference between groups**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Common standard deviation**(Enter values > 0)

**Group 1 mean**(Enter values > 0)

**Group 2 mean**(Enter values > 0)

**Group 1 sample size**

**Group 2 sample size**

**Sample size ratio between groups**(Enter values > 0)

**Incidence of events in 1st group (%)**(Enter values 0 to 1)

**Incidence of events in 2nd group (%)**(Enter values 0 to 1)

**Desired Hazard ratio**(Enter values > 0)

**Drop-out rate**(Enter values 0 to 1)

**Pearson's correlation coeficient estimation**(Enter values 0 to 1)

**Drop-out rate**(Enter values 0 to 1)

**Proportion of positive result by first rater**(Enter values 0 to 1)

**Proportion of positive result by second rater**(Enter values 0 to 1)

**Expected Kappa value**(Enter values 0 to 1)

**Null hypothesis Kappa Value**(Enter values 0 to 1)

**Drop-out rate**(Enter values 0 to 1)

**Expected ICC**(Enter values 0 to 1)

**Null hypothesis ICC**(Enter values 0 to 1)

**Number of ratings per subject**

**Item substitution rate**(Enter values 0 to 1)