# What I provide for the scientist and researchers:

I provide statistical consultations regarding your scientific project. This includes designing the analysis, collecting the data, performing the analysis, reporting the statistical analysis, and writing the statistical paragraph of the manuscript, grant, or the protocol.

I translate your scientific research question to a statistical problem and perform the appropriate analysis and translate the statistical results back to answer your scientific research question. I explain the sophisticated statistical techniques as understandable as possible that can be understood by young researchers.

I provide all statistical software codes, and the raw output, so that the results can be reproducible in future easily.

The most frequent questions by scientific are as follows.

**Regression analysis:**

*Regression analysis* is a method of identifying which variables have impact on your variable of interest. The process of performing a regression allows you to determine which factors matter most, which factors can be ignored, and how these factors influence each other.

**(Bayesian) Meta-analysis:**

A *meta*-*analysis* also known as *systematic review* is a statistical analysis that combines the results of multiple scientific studies.

**IPD Meta-analysis:**

*Individual participant data (IPD) meta-analysis* is a specific type of systematic review. Rather than extracting summary (aggregate) data from study publications or from investigators, the original research data are sought directly from the researchers responsible for each study.

**Survival analysis:**

*Survival analysis* is the analysis of time-to-event data. Such data describe the length of time from a time origin to an endpoint of interest. E.g., time from lung cancer diagnosed until death. Normally Kaplan-Meier curve is shown.

**Sample size/Power calculation:**

*Since involving all subjects in the population is not possible, sample size or power calculation* is used to determine the minimum number of subjects for adequate study power.

**Longitudinal (mixed-effects) analysis:**

*A longitudinal stud*y is a research design that involves repeated observations of the same subject over time.

Our aim is to deliver excellent services to companies by reporting a professional statistical report including perfect visualization of data. Please send your statistical question to **info@consultistics.nl****, **I will contact you within 48 hours and set a meeting with you. The first meeting is free of charge. All our services can be provided in Dutch, English, and Persian languages.** **