Welcome to my portfolio showcasing collaborative data analysis projects completed with undergraduate students. These projects span a wide range of topics in psychology, education, and behavioral science, with a focus on survey-based research and statistical interpretation using SPSS and R.
As a statistician and data consultant, I have worked with students to help them design surveys, clean and analyze data, choose appropriate statistical tests, and interpret findings. This portfolio presents a structured, anonymized overview of 20 selected student research projects.
Note: All data and files in this repository are either simulated or anonymized for privacy protection. No real personal or sensitive student data is shared here.
- Mental Health & Emotions (e.g., anxiety, depression, mood)
- Learning & Academics (e.g., GPA, study habits, online learning)
- Behavior & Lifestyle (e.g., smartphone use, sleep, exercise)
- Social & Environmental Factors (e.g., bullying, peer relations, family income)
Each project is hosted in its own folder with:
- A summary of the research purpose
- Description of inputs and survey design
- Analysis approach (SPSS or R)
- Methods used (e.g., t-tests, ANOVA, regression)
- Simulated sample data (when possible)
- Visualizations and interpretation of results
| Project Title | Tool | Main Method |
|---|---|---|
| Self-Esteem and Academic Performance | SPSS | Pearson correlation |
| Social Media Use and Self-Esteem | SPSS | Spearman correlation, Multiple linear regression |
| Sleep Quality and Academic Performance | SPSS | Hierarchical multiple regression, Multicollinearity diagnostics |
| Effect of Music Genre on Mood and Performance | SPSS | ANCOVA , One-way ANOVA |
| Anxiety Before and After Exams | SPSS | Repeated Measures ANOVA, Post-hoc |
| Effects of caffeine on reaction time | RStudio & R Markdown | Two-way ANOVA, ANCOVA, One-way ANOVA + Tukey test |
| Gratitude_wellbeing | RStudio & R Markdown | Mixed-effects model, Independent t-test, Multiple imputation |
| Perfectionism and Procrastination | RStudio & R Markdown | Structural Equation Modeling (SEM), Moderation analysis |
| Mindfulness and Exam Stress | RStudio & R Markdown | Wilcoxon signed-rank test, Spearman correlation |
| Color and Memory Recall | RStudio & R Markdown | Kruskal-Wallis test, Dunn’s post-hoc test |
| ... (and 15 more projects) |
- All datasets included here are fully anonymized or synthetically generated.
- Projects were conducted with informed guidance to preserve ethical standards in research.
- These materials serve as educational examples of applied statistical consulting.
- SPSS – for most survey-based descriptive and inferential analysis
- R – for custom visualization, statistical modeling, and advanced methods
- Markdown & Git – for clean documentation and portfolio presentation
If you’re interested in student collaboration, mentorship, or research consulting, feel free to reach out via:
- GitHub: RoniF-pixel/
- Website: Stats Consulting Service
- YouTube: statisticiansworld8912