**Research Question**
Our primary research question was (1) whether fish developed in warmer temperatures exhibited greater phenotypic variability than fish that developed in a control temperature. We simultaneously tested for (2) differences in phenotypic means, and (3) whether a cool temperature treatment had comparable effects to a warm temperature treatment.
**Study Design**
Systematic meta-analysis
**Pre-registration**
We registered our project prior to data analysis on 16th March 2018: https://osf.io/8ymh9/