fixed-effects model.

1. A model treating included effects as fixed parameters rather than draws from a wider population distribution.

2. In a meta-analysis, a model assuming one common underlying effect across the included studies.

Use it for

Words that belong together

• fit a fixed-effects model
• unit fixed effects
• fixed-effects meta-analysis
• fixed-effect meta-analysis
• common underlying effect
• fixed-effect estimate

On the page

The panel analysis used a fixed-effects model to control stable differences among regions.

A fixed-effects meta-analysis estimated one common treatment effect.

Usage notes

The term varies by field; panel models control stable unit differences, while meta-analysis may assume one common true effect. Sense 2: Terminology varies: some fields say fixed-effect, others common-effect; do not confuse this with unit fixed effects in panel data.