Your research question is important. The analysis needs to hold up.
Senior statistical and methodological support for study design, analysis, evaluation, and publication — explained clearly and built to withstand scrutiny.
Start with the challenge closest to yours
Three paths to the services, methods, and examples most relevant to your work.
"Reviewer 2 questioned my analysis."
Study design, power analyses, and revise-and-resubmit responses from a Co-PI on NSF and IES trials — across education, psychology, and beyond.
How we help researchers →"Our funder wants evidence of impact."
Program evaluation your board, funders, and stakeholders can act on — from non-profits to legal and access-to-justice research, designed to fit real budgets and real data.
How we help non-profits →"Our eval numbers won't hold up."
Statistically defensible evaluation frameworks and metrics for LLM and data products — before a customer audits them.
How we help AI teams → Try the free model-comparison calculator →Statistical consulting services, from study design to publication
Engage us for a single analysis or as an ongoing methods partner across the full lifecycle of a project.
Research Design & Development
Get the study right before you collect a single data point — so your results hold up to scrutiny.
- Study & experimental design
- Sampling and power analysis
- Measurement & survey instruments
- Grant and IRB methods sections
Data Management, Analysis & Visualization
From raw, messy files to clean models and figures your audience immediately understands.
- Cleaning & data pipelines
- Multilevel & structural equation models
- Publication-ready figures
- Reproducible R code you keep
Teaching & Training
Build your team's capacity so you rely on us less over time — that's the point.
- Hands-on R workshops
- Methods coaching for students
- Team upskilling sessions
- Code review & best practices
Real questions, defensible answers
Representative federally- and foundation-funded projects our team has supported as PI, Co-PI, methodologist, or statistician.
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Expertise you understand. A process you can trust.
We choose the right method for your question, explain the result in plain language, and keep you close to the work from first call to final handoff.
Right method, first time
Matched to your question and data—not to habit.
Plain-language results
Clear enough for reviewers, boards, and teams.
Responsive collaboration
Direct access without the agency backlog.
Senior expertise
Experienced statisticians, start to finish.
Free consult
We understand your question, data, and deadline.
Scoped plan
You receive the methods, timeline, and fixed quote.
Analysis
We do the work and check in along the way.
Handoff
You get clear results and reproducible code.
Trusted by researchers who don't cut corners
We had an unrealistically tight timeline, and Dr. Yel jumped in without hesitation — not only met the deadline, but delivered a little earlier than we anticipated. He took the time to understand the situation behind the data and the implications of every insight. We know who to go to for future work like this.
DASS did a fantastic job. They were patient, clear about the coding, and very responsive to my emails. They took the time to understand the overall goal before proceeding with each step. Highly recommend.
I recruited Nedim for his analytical skills and research abilities. He brought very strong quantitative research skills and the interpersonal ability to work effectively with a wide range of people from diverse backgrounds. He excelled at ferreting out and interpreting information from multiple sources. My highest recommendation.
Senior statisticians who stay hands-on
Dr. Nedim Yel and Dr. Kerrie Wilkins-Yel work directly with clients from first call to final handoff.
Meet the team →“DASS started from a simple frustration: too much good research stalls because the statistics are done to it, not with it. You should talk directly to the statistician doing the work.”
Let's talk about your project
Tell us where you are — a messy dataset, a study to design, a reviewer to satisfy. Book a free 30-minute consult directly, or send us the details and we'll reply within one business day with a plan and a quote.
Don’t see a time that works? Email bookingrequest@statisticalsolutions.org, and we’ll try to find one.
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Thanks — we're on it.
We'll be in touch within one business day.