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English
$
USD
I will calculate sample size and conduct power analysis for your study
Expert Data Analyst: Turning Data into Insights or Academic Excellence
Expert Data Analyst | 200+ Projects
I transform complex data into clear insights for businesses and academic research. With expertise in R, SPSS, Stata, Excel, Python, Tableau, and Power BI, I delive...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
About this Gig
Planning a study? I'll calculate the optimal sample size and conduct power analysis to ensure your research has sufficient statistical power to detect meaningful effects.
12+ years power analysis expertise
200+ study design projects
G*Power, R, SPSS, Stata proficiency
Grant proposal & IRB-ready justifications
What you get:
- Sample size calculations for any test
- Power analysis & effect size estimation
- Multiple scenario comparisons
- Cost-benefit analysis of sample sizes
- Statistical assumptions documentation
- Grant-ready methodology sections
- Visual power curves & tables
Perfect for: Researchers, PhD students, grant writers, clinical trials, survey designers
I handle: t-tests, ANOVA, regression, correlation, proportions, survival analysis+complex models, SEM
Delivery: Detailed report + calculations + methodology write-up + consultation
Ensure your study has the power to detect what matters!
My Portfolio
Other Data Analytics Services I Offer
FAQ
What if I don't know what statistical tests are appropriate for my study?
I could help suggesting which methods are the most suitable based on research idea and data.
What information do I need to provide for sample size calculation?
I need your statistical test type, expected effect size (or pilot data), desired power (usually 80%), and significance level. If you're unsure about effect sizes, I can help estimate them from literature or pilot data or use "medium" effect size.
Can you help with complex study designs like factorial or repeated measures?
Absolutely! I handle complex designs including factorial ANOVA, repeated measures, mixed designs, cluster randomized trials, and survival studies. I'll account for design effects and clustering in calculations.
Do you provide justifications for grant proposals and IRB applications?
Yes! All packages include methodology sections explaining your sample size rationale, power calculations, and statistical assumptions. Premium package includes grant-specific formatting and multiple revision rounds.
Reviews
7 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
A assadpharr
United States
Truly went above and beyond in delivering exceptional work, far exceeding any expectations I had going in. From the outset, the level of professionalism and dedication to excellence was evident, setting the stage for what was to become a transformative experience for my research. The quality of work...
$50-$100
Price
2 days
Duration
Helpful?V vectorsurgical
United States
Oleksii did an amazing job! He was timely, professional, and exceeded what was expected. He provided more detail than was required for the project which was very helpful. I would highly recommend using Oleksii's services. Thank you again Oleksii for a well done project :)
$50-$100
Price
1 day
Duration
Helpful?C cooldawg123
Repeat Client
Canada
Great to work with!
$50-$100
Price
5 days
Duration
Helpful?O oncopal
Antigua and Barbuda
Very knowledgeable and quick!
Up to $50
Price
1 day
Duration
Helpful?C cooldawg123
Repeat Client
Canada
Quick and efficient. Highly recommended!
$50-$100
Price
7 days
Duration
Helpful?
Reviews
7 reviews for this Gig
| (7) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A assadpharr
United States
Truly went above and beyond in delivering exceptional work, far exceeding any expectations I had going in. From the outset, the level of professionalism and dedication to excellence was evident, setting the stage for what was to become a transformative experience for my research. The quality of work...
$50-$100
Price
2 days
Duration
Helpful?V vectorsurgical
United States
Oleksii did an amazing job! He was timely, professional, and exceeded what was expected. He provided more detail than was required for the project which was very helpful. I would highly recommend using Oleksii's services. Thank you again Oleksii for a well done project :)
$50-$100
Price
1 day
Duration
Helpful?C cooldawg123
Repeat Client
Canada
Great to work with!
$50-$100
Price
5 days
Duration
Helpful?O oncopal
Antigua and Barbuda
Very knowledgeable and quick!
Up to $50
Price
1 day
Duration
Helpful?C cooldawg123
Repeat Client
Canada
Quick and efficient. Highly recommended!
$50-$100
Price
7 days
Duration
Helpful?
