Psychology Dissertation Statistics
Psychology dissertations are among the most methodologically demanding in the social sciences: experimental designs call for factorial ANOVAs and repeated measures, scale studies call for exploratory/confirmatory factor analysis, and correlational work frequently needs mediation and moderation models. GetBayes takes your dataset for any of these three design types, runs the analysis that fits your hypotheses, and reports it to APA 7th-edition standard (exact p-values, effect sizes, confidence intervals) — the analysis itself usually takes 15 minutes, and your report is in your hands the same day, often within hours or even minutes.
Psychology journals and committees are particularly strict about APA reporting format; we prepare every table and every in-text statistic to that standard, so you don't get a formatting question at your defense or from a reviewer.
Who is this service for?
Master's and PhD psychology students working on a dissertation
Researchers collecting data with an experimental design (group x time, factorial)
Anyone running scale development or a Turkish adaptation study
Researchers building a mediation or moderation model
Anyone who needs full compliance with APA reporting format
The analyses we run most in psychology research
| Design / question | Typical analyses |
|---|---|
| Two-group comparison | Independent/paired-samples t-test, Mann-Whitney/Wilcoxon when needed |
| Three or more groups, factorial design | One-/two-way ANOVA, repeated-measures ANOVA, post-hoc tests, partial eta squared |
| Scale development / Turkish adaptation | Exploratory factor analysis (EFA), confirmatory factor analysis (CFA), Cronbach's alpha / McDonald's omega |
| Relationships between variables / prediction | Correlation, multiple regression, hierarchical regression |
| Mediation and moderation | Mediator models (bootstrap confidence intervals), moderation analysis, interaction terms |
| Sample size planning | A priori power analysis — with justification text for an ethics application or proposal defense |
How the process works
- 01
Describe your design and data
Share your research design (experimental, correlational, scale study), your dataset and your hypotheses.
- 02
Free assessment
Within 24 hours we tell you which analyses are needed and give a clear written price.
- 03
Analysis and APA reporting
Assumption checks, correct test/model selection, and reporting with full APA 7 statistical statements.
- 04
Delivery and support
Your publication-ready report arrives the same day; we keep answering questions ahead of your committee meeting or defense.
Common mistakes in psychology dissertations
These are what committees and reviewers flag most — we account for them from the start:
Trying to "prove" mediation with a simple correlation — the current standard is bootstrap-confidence-interval mediation models (the Sobel test is now considered insufficient).
Reporting only main effects in a factorial ANOVA without interpreting the interaction effect.
Reporting only Cronbach's alpha in a scale-adaptation study while skipping construct validity (factor analysis).
Writing just "p<0.05, significant" instead of a full APA statistical statement — a finding is considered incomplete without effect size and confidence interval.
Frequently asked questions
Do you run mediation analysis?
Yes. We build bootstrap-confidence-interval mediation models (to test the significance of the indirect effect) and, when needed, moderation or moderated-mediation models — reporting results with a path diagram and an APA-formatted table.
Do you calculate my sample size with G*Power?
We compute the same power-analysis logic G*Power uses (required sample size given effect size, alpha and power) with our own Python-based infrastructure, including sensitivity graphs — the result follows the same logic, and we also prepare the justification text for your ethics application. See our sample size calculation page for details.
What analyses does my scale-development dissertation need?
The typical sequence: exploratory factor analysis (construct validity), confirmatory factor analysis (model confirmation), Cronbach's alpha/McDonald's omega (reliability), and a correlation with a related scale for criterion validity. See our scale reliability analysis page for a detailed interpretation guide.
Can I get a report fully compliant with APA 7th edition?
Yes — every table, every in-text statistic (t, F, p, effect size, confidence interval) and every figure is prepared to APA 7th-edition standard.
Do you run repeated-measures ANOVA and mixed-design analysis?
Yes. From single-factor repeated-measures ANOVA to group x time mixed factorial designs, and we apply the Greenhouse-Geisser correction when sphericity is violated.
How much does the analysis cost?
Price depends on model complexity (a simple group comparison and a mediation model are not the same effort) and the number of variables. See our statistical analysis pricing page for current market ranges, or send your data for a free assessment within 24 hours.
Start your psychology dissertation analysis
Send your design and data — we'll reply within 24 hours with a free assessment.
Last updated: July 10, 2026