Know your Sample Size.
Select your study type based on your primary Data Type and Objective.
Introducing BioScale
"The Precision Tool for Sample Size Calculation."
BioScale, part of the Biostar Health digital suite, ensures your research protocols meet the highest standards of statistical power and ethical rigor before submission.
📚 Need Help? Start Here: Research Manual & Scenarios1. Qualitative Data (Proportions, Prevalence, Rates)
Objective: Estimation (Single Group)
Estimate a single proportion (prevalence) with a specified precision (margin of error) and confidence.
Go to CalculatorObjective: Hypothesis Testing (Compare Groups)
Determine the sample size needed to detect a difference between two proportions.
2. Quantitative Data (Means, Averages, Numerical Scores)
Objective: Estimation (Single Group)
Estimate a single population mean (μ) with a specified precision (margin of error) and confidence.
Go to CalculatorObjective: Hypothesis Testing (Compare Groups)
Determine the sample size needed to detect a difference between two means.