Sample Size Calculation in DataStatPro: Complete Guide (Every Calculator, Step by Step)

How many participants do you need? 🤔 Calculate it in minutes with DataStatPro’s free sample size calculators, no coding needed. In this complete guide, Prof. Dr. Asif Hanif walks you through every sample size calculator in DataStatPro, step by step, using real screens and worked examples. You’ll learn: ✅ Where to find the calculators, and which one fits your study design ✅ Prevalence and proportion studies, including the finite population correction ✅ Estimating a mean ✅ Comparing two groups: proportions and means ✅ Paired designs: before–after means and McNemar’s test ✅ One-way and repeated-measures ANOVA ✅ All 7 advanced designs: cluster randomized, non-inferiority, equivalence, survival (log-rank and Cox), multiple comparisons and interim analysis ✅ The auto-generated APA write-up, Export to Word, and how to adjust for dropouts Note: the example values are illustrative, for teaching only. 🔗 Try it free: https://datastatpro.com, then Calculators → Sample Size Chapters 0:00 Intro 0:12 Why sample size matters 0:38 Where to find the calculators 0:56 Which calculator do I need? 1:32 One sample: prevalence / proportion 2:08 Small population: finite population correction 2:30 APA write-up & Export to Word 2:52 One sample: estimating a mean 3:17 Two groups: proportions 3:48 Two groups: means 4:13 Paired: before and after (means) 4:40 Paired: yes/no outcome (McNemar) 5:10 One-way ANOVA (3+ groups) 5:34 Repeated measures ANOVA 6:15 Advanced study designs: overview 6:44 Cluster randomized trial 7:18 Non-inferiority trial 7:45 Equivalence trial 8:13 Survival: log-rank test 8:40 Survival: Cox regression 9:09 Multiple comparisons 9:30 Interim analysis 9:54 Before you report: dropouts & rounding 10:22 Your turn 👨‍🏫 Prof. Dr. Asif Hanif, Professor of Biostatistics, Sakarya University, Türkiye 🎬 Asif AI Studio: biostatistics, research methods and AI for health research 👍 Like · 💬 Comment · 🔁 Share · 🔔 Subscribe · 📌 Save #SampleSize #DataStatPro #Biostatistics #ResearchMethods #AsifAIStudio