Advanced Statistical Analysis

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About this service

Summary

The service involves high-level statistical analysis. Not only does it include rigorous adherence to the best practice in statistics but it may also include the most advanced multivariate statistical techniques, which are typically beyond the capabilities of most analysts and researchers. Clients can also expect high-quality insights derived from complex data sets, ensuring that their needs are met with expertise.

Process

The process is the following:
Data Preparation: cleaning (e.g., duplicate removal, missing values and outlier treatment), formatting (e.g., converting data types, string operations, date operations, filtering, sorting, aggregation, discretization), reshaping (long to wide, wide to long), merging several sources, transformation (e.g., normalization, standardization, Box-Cox, Johnson), feature engineering/creating new variables, dimension reduction
Data Analysis: exploratory analysis, applying statistical techniques, hypothesis testing (if applicable), validation (cross-validation, sensitivity analysis; if applicable), result interpretation
Report Creation: comprehensive presentation (summarizing key findings, including visualizations, and detailing the results), recommendations (providing actionable insights based on the analysis; if applicable), documentation (documenting methods, assumptions, and decisions made during the analysis).
Final Delivery (listed deliverables)

FAQs

  • What do you mean by rigorous adherence to the best practice in statistics?

    It involves meticulous data preparation, sophisticated handling of missing values and outliers, checking statistical assumptions, and selecting appropriate tests. Additionally, it includes comprehensive reporting of findings, performing cross-validation and sensitivity analysis to ensure robustness and validity of statistical conclusions, as well as transparent documentation of the procedure.

  • What do you mean by most advanced statistical techniques?

    The techniques that extend beyond common parametric and non-parametric methods. They include advanced regression analysis techniques (e.g., quantile regression, robust regression, partial least squares regression), path analysis, mediation and moderation analysis (e.g., mediated mediation, moderated moderation), latent variable modeling (e.g., latent class analysis, latent profile analysis, multigroup factor analysis, multilevel factor analysis, hierarchical factor analysis, full structural equation modeling, multigroup structural equation modeling, multilevel structural equation modeling, latent growth curves), correspondence analysis, survival analysis, time series analysis, advanced clustering techniques (e.g., Gaussian mixture modeling, fuzzy clustering).

  • What if my project requirements do not exactly match the offered service?

    I am flexible, so feel welcome to message me and we can discuss the specific requirements of your project.

  • Do I need to provide my own data?

    Typically, it is assumed that you will provide the dataset you want analyzed. However, if the project requires it, I can assist with obtaining data through web scraping or other methods to gather data from specific sources.

  • Do you offer support with the data collection?

    Yes, I can assist with data collection. This includes providing suggestions and feedback on methods such as survey design, statistical power analysis, and overall research design to ensure that your data collection is effective and appropriate for your analysis needs.

  • How will my data be handled in terms of confidentiality and data security?

    I am committed to data ethics and understand the importance of protecting sensitive information. Your data will be used solely for the purpose of completing your requested analysis. It will not be shared with any third parties and will be deleted upon completion of the task.

  • Am I required to list specific hypotheses?

    Not necessarily. If you have specific hypotheses, they can help guide the analysis. However, if you only have general aims or need specific insights without defined hypotheses, that's fine too. Just let me know what you want to achieve or find in the dataset, and I will adjust the analysis accordingly.

  • Which tools do you use in the analysis?

    For advanced statistical analysis, R is my primary tool due to its comprehensive coverage of various techniques and versatility. However, I am also proficient in other software and can adapt to use the most suitable tool if specific techniques are better supported elsewhere or if you prefer the analysis to be done using other tools.

What's included

  • Report (.html, .docx, etc.)

    The analysis will be delivered as a comprehensive report. This report will detail every step of the analytical process, from data preparation to the presentation and interpretation of final results. Throughout the report, every decision made during this process will be justified based on best practices in statistics.

  • The Code (RNotebook, Jupyter)

    If needed, the code that was used for the analysis can be delivered along with the report.

  • The Prepared Dataset (.csv, .xlsx, etc.)

    If needed, the prepared form of the dataset can be delivered along with the report.

Example projects


Skills and tools

Data Modelling Analyst
Data Scientist
Data Analyst
Microsoft Excel
Python
R

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