Metalens
An interactive tool to explore scientific evidence
Science produces thousands of studies on every topic. A single study rarely gives the full picture — but a meta-analysis combines the results of many studies to show what the evidence actually says. Metalens lets you explore these meta-analyses interactively.
Explore meta-studies
Hydroxychloroquine & COVID-19
Does hydroxychloroquine or chloroquine reduce mortality in COVID-19 patients? Results from 33 randomized trials.
Writing-to-Learn Interventions
Do writing-focused teaching methods improve academic achievement? Results from 48 school-based studies.
Conscientiousness & Medication
Is the personality trait of conscientiousness linked to better medication adherence? Results from 16 studies.
Supervision Quality
How does supervision quality relate to job outcomes in social and mental health workers? Results from 5 studies.
How it works
1
Pick a study
Choose a meta-analysis above or upload your own dataset.
2
Filter
Narrow down results by study type, year, sample size, and more.
3
Understand
Read the interactive forest plot to see what the combined evidence shows. Not sure how? See our beginner guide.