Q‑Score Calculator for Pairwise Comparison
Enter the group means, sample sizes, and standard deviation. The Q‑Score is computed as: $$ Q = \frac{\text{Mean}_1 – \text{Mean}_2}{\text{SD} \times \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}. $$
* Ensure all values are positive and sample sizes are at least 1.
Step 1: Enter Parameters
e.g., 75
e.g., 70
e.g., 30
e.g., 30
Enter the pooled or within-group standard deviation (e.g., 10)
How It Works
The Q‑Score for a pairwise comparison is computed as:
$$ Q = \frac{\text{Mean}_1 – \text{Mean}_2}{\text{SD} \times \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}} $$
where:
- \(\text{Mean}_1\) and \(\text{Mean}_2\) are the group means
- \(n_1\) and \(n_2\) are the sample sizes
- \(\text{SD}\) is the standard deviation