G*Power 3.1 Calculation of sample size

location_onLocation

eventCompletion Date

Before Tue, 15 Sept 2026 (Evening)

scheduleDuration

1 hour

descriptionDescription

I am looking for a G*Power 3.1 Calculation of sample size for a one-group pre- and post-test design, specifically to re-verify a previous calculation and understand the methodology. Task Description: - Re-calculate the appropriate sample size for a one-group pre- and post-test design using G*Power, considering a population of 45 students. - Provide a clear explanation of the G*Power calculation process and the rationale behind the chosen statistical parameters (e.g., effect size, alpha, power). - Deliver the final calculated sample size, including an allowance for attrition, along with a screenshot of the G*Power interface displaying the results. Skills and Experience Required: - Proficiency in G*Power 3.1 software for sample size calculations. - Strong understanding of statistical power analysis, particularly for paired samples t-tests. - Ability to explain complex statistical concepts in an accessible manner for non-statisticians.

checklistRequirements

If you have experience with G*Power, that’s it.

groupHeroes Required

1