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Intro
2 determining factors of sampling strategy
Factor 1: Research methods
Qualitative methods sampling factors
Why you only need to test with 5 users
Quantitative methods sampling factors
Factor 2: User groups
Summary: how to come up with a good sampling strategy
Survey sample size explained
Demo: how to calculate survey sample size
Sample size for usability testing and IDIs
Sample size for Diary Studies
Remember to count for "drop-outs"
What are prediction models?
Why is sample size important?
Shrinkage methods
Criteria to minimize overfitting
Minimum sample size criteria
Calculating sample size in Stata
Rules of thumb for clinical prediction model research
Sample size calculation example
Sample size calculation when overfitting is assumed
References and resources
Introduction
Challenges in Sample Size Calculation
Factors Influencing Sample Size Decision
Research Supervisor's Influence on Sample Size
Consideration of Sample Size in Research
Sample to Item Ratio for Exploratory Factor Analysis
Sample to Variable Ratio
Recommended Online Calculators
Sample Size for Structural Equation Models
Sample Size Guidelines for PLS-SEM
Criticism of the 10 Times Rule
Alternative Methods: Inverse Square Root and Gamma Exponential
Power Table by Hair et al.
G*Power Analysis for Sample Size Calculation