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.
e.g., 75
e.g., 70
e.g., 30
e.g., 30
Enter the pooled or within-group standard deviation (e.g., 10)
Q‑Score:
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: