Minimum detectable effect size for main outcomes (accounting for sample
design and clustering)
With 250 participants per arm, simple randomization, no clustering, the minimum detectable effect sizes at 80% power are:
- Continuous DV (number of strategic options): Cohen's d = 0.31
- Binary DV (mutual exclusivity): a difference of 11.36 percentage points
Calculation is based on parameters from previously run experiments.
The confirmatory family comprises 5 pre-registered pairwise contrasts: integrated vs. control, integrated vs. words-only, integrated vs. single-framework (Ansoff), control vs. words-only, and control vs. single-framework. The remaining pairwise contrast (words-only vs. single-framework) is exploratory.