Clinical Evidence Visualiser
Translating complex paediatric occupational therapy data into clearer, interactive charts for parents, clinicians, and referrers.
Interactive Effect-Size Visualiser
Bigger bars mean bigger real-world benefit - but a wide bar that reaches back toward zero means we're less certain the effect is real.
Select a study tab to compare effect size, confidence interval, and how certain the result looks without jumping around the page.
Handwriting instruction -> writing fluency
Lopez-Escribano 2022
- Effect size
- 0.66
- 95% CI
- 0.51 to 0.81
Active plot
medium effect - a meaningful, noticeable improvement.
Confidence interval stays above zero - the finding is statistically reliable.
Bell curve simulator
Starts from the selected study's effect size. Drag the slider to see what a smaller or larger difference would look like between a control group and a therapy group.
Chance therapy group scores higher
68.0%
Group overlap
74.1%
medium effect - a meaningful, noticeable improvement. As the blue curve moves further to the right, the two groups overlap less and the practical benefit becomes easier to notice.
Reader explainer
Effect size (Cohen's d): how big the improvement is. Small is roughly 0.2, medium about 0.5, and large about 0.8.
95% confidence interval (CI): the likely range for the true effect. If the bar stays above zero, the finding is statistically reliable; if it crosses zero, the benefit is statistically uncertain.
Source note
Data plotted from Lopez-Escribano 2022, Case-Smith 2014, and Travers 2018.
| Label | Category | Effect size | 95% CI low | 95% CI high | Source |
|---|---|---|---|---|---|
| Handwriting instruction -> writing fluency | Instruction | 0.66 | 0.51 | 0.81 | Lopez-Escribano 2022 |
| Multicomponent programmes -> fluency | Instruction | 0.51 | 0.38 | 0.63 | Lopez-Escribano 2022 |
| Timed transcription practice -> fluency | Instruction | 0.49 | -0.10 | 0.99 | Lopez-Escribano 2022 |
| Performance feedback -> fluency | Instruction | 0.36 | 0.06 | 0.66 | Lopez-Escribano 2022 |
| Write Start -> legibility (6-mo) | Programme | 0.59 | No CI reported | No CI reported | Case-Smith 2014 |
| Write Start -> speed (6-mo) | Programme | 0.58 | No CI reported | No CI reported | Case-Smith 2014 |
| Write Start -> fluency (6-mo) | Programme | 0.60 | No CI reported | No CI reported | Case-Smith 2014 |
| Curriculum programmes -> legibility (avg) | Programme | 0.39 | 0.02 | 1.05 | Travers 2018 |
| Curriculum programmes -> speed (avg) | Programme | 0.13 | -0.90 | 0.77 | Travers 2018 |