Parametrik AFT Modelleri

Sağkalım · Parametrik

Parametric AFT Models is one of the statistical analyses automatically performed in MerQur. This page provides an illustrative demonstration, using a sample data set from the field of Sport Sciences, of how the analysis is applied, how the MerQur output appears, and how it is reported in APA 7 format.

🎯 What is it for?

Parametric AFT Models automatically performs all the necessary assumption checks (normality, homogeneity of variance, etc.) for the relevant data type in the background and presents the results with a clear table + chart. Automatic interpretation in the APA 7 standard, effect sizes such as Cohen’s d/η²/R², and 95% confidence intervals are reported.

📌 When is it used?

In the statistical analysis of measurements in the field of Sport Sciences
To generate APA 7-compliant result tables for academic publication
In hypothesis testing and decision-making processes
After selecting an appropriate method in undergraduate / master’s / doctoral theses

📐 Assumptions

Appropriate scale — Variables must be at the scale level required by the analysis (nominal/ordinal/interval/ratio)
Independent observations — Observations must come from mutually independent individuals
Adequate sample — The minimum n requirement for the analysis must be met
Outlier check — Outliers must be detected and evaluated

If the assumptions are violated, MerQur automatically steers you toward a non-parametric or robust alternative.

🛠 How to do it in MerQur

Load the data. Select the sample file from the File → Open menu. MerQur automatically detects column types.

Select the analysis. Choose Parametric AFT Models from the left sidebar.

Panel assignments (form fields in the program):

duration_col: None
event_col: emekli
Covariates: ['kariyer_yil']
distribution: weibull

Optional settings. Effect size ✓ · 95% confidence interval ✓ · Assumption checks (automatic).

Press the ▶ Run button. Results are automatically produced as a table + chart.

📄 Export to Word. A report in APA 7 format with italic statistical symbols.

📊 Sample Dataset — Spor Bilimleri

ℹ Note: The MerQur output and interpretation tables on this page are illustrative and intended to help understand the analysis. The numerical results for your own data may differ; this page does not have to match the YouTube video walkthrough exactly.

🎬 Example File Used in the Video

The YouTube video walkthrough for this page was recorded for the Sport Sciences field using the sample file below:

MerQur_Hoca_Tanitim/Spor_Bilimleri/88_aft_weibull.xlsx

Topic: Application of Parametric AFT Models analysis on a real sample data set from the Sport Sciences field.

Data Preview (First 5 Rows)

sporcu_id	kariyer_yil	emekli	tip
1	15.73	1	Mesafe
2	15.17	1	Sprint
3	0.65	0	Sprint
4	3.32	0	Mesafe
5	16.23	1	Sprint

n = 200 · Sütunlar: sporcu_id, kariyer_yil, emekli, tip

MerQur Output (Illustrative)

PARAMETRIC AFT MODELS RESULT ───────────────────────────────────────────── Data: n = 200, 4 columns Test statistic: 12.43 p-value: < .001 Effect size: moderate-to-large Detailed results are generated automatically with MerQur’s ▶ Run command.

MerQur Interpretation (Plain Language)

Parametric AFT Models revealed a statistically significant finding among the relevant variables (p < .001). Detailed results and visualizations are generated automatically in MerQur’s output panel.

APA 7 Interpretation (Academic Format · Illustrative)

According to the Parametric AFT Models results, a statistically significant effect/association was observed on kariyer_yil (p < .001). The effect size is at a medium-to-large level, indicating that the findings carry practical significance. MerQur’s APA 7 Word output can be used for a detailed report.

⚠ Common Mistakes

Specifying the data type incorrectly (e.g., loading a categorical variable as numeric)
Skipping the assumption checks and looking directly at the p-value
Not reporting the effect size — APA 7 requires both p and the effect size
Not applying a Type I error correction (Bonferroni/Tukey) in multiple comparisons
Not switching to a non-parametric alternative when n is insufficient

📹 Video Walkthrough

You can watch the video below for the end-to-end application of this analysis on the Sport Sciences file.

▶

The video will be uploaded to the MerQur YouTube channel soon

📺 MerQur YouTube Channel

🔀 The same analysis in other Basic Fields:
🎓 Educational Sciences · 🧪 Natural Sciences and Mathematics · 🏛 Architecture, Planning and Design · ⚙ Engineering · 🏥 Health Sciences · 📊 Social, Humanities and Administrative Sciences · 🌾 Agriculture, Forestry and Fisheries

📚 If You Used This Analysis, Cite MerQur

If you performed this analysis in a scientific study using MerQur, please use the following citation (APA 7) in accordance with the academic citation requirement:

Örücü, Ö. K. (2026). MerQur: An Integrated Academic Data Analysis and Reporting Platform [Computer Software] (Version 1.0.0). https://doi.org/10.53463/merqur.2026001

For BibTeX, RIS, EndNote and the English equivalent: all citation formats →

References:

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.).
Field, A. (2018). Discovering statistics using IBM SPSS Statistics (5th ed.). Sage.
Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Lawrence Erlbaum.