recommend_test
Identify the correct statistical test for any study design. Specify outcome type, design, group count, normality, and variance to receive test recommendation, assumptions, SPSS path, R code, and APA reporting template.
Instructions
Recommend the correct statistical test for a study design.
Use this to answer "what statistical test should I use?". Describe the design: outcome_type (continuous/ordinal/nominal/count), design (one_sample = compare one group to a value; independent = compare separate groups; paired = same subjects over time/conditions; correlation = relationship between two variables; association = two categorical variables), how many groups, whether the outcome is ~normal, and whether group variances are equal. Returns the test, why, assumptions, SPSS path, R code, an APA reporting template, and fallbacks if assumptions fail.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| design | Yes | ||
| n_groups | No | ||
| normality | No | unknown | |
| outcome_type | Yes | ||
| equal_variance | No | unknown |