Animal advocacy

Impact of corporate commitments to source cage-free eggs on layer hen housing: Preregistration for an observational study

Over the last decade, hundreds of companies around the world have committed to source cage-free eggs by 2025 or earlier. Commitments sometimes result from conversation with groups advocating to improve the treatment of animals, as cage-free housing …

Reducing meat consumption by appealing to animal welfare: protocol for a meta-analysis and theoretical review

*Background*: Reducing meat consumption may improve human health, curb environmental damage and greenhouse gas emissions, and limit the large-scale suffering of animals raised in factory farms. Previous work has begun to develop interventions to …

Surveying US College and University Dining Services for Potential Collaboration on Diet Change Research 2017–2018

Collaboration with colleges and universities may be a promising opportunity for collecting data on what foods people buy. This data could support research in animal advocacy and other fields seeking to change diet, including reducing the purchase and …

Measuring Change in Diet for Animal Advocacy

We consider the self-reported dietary measurement instruments currently recommended for animal advocacy research and possible alternatives to using these instruments. Reviewing the biases associated with self-reporting and comparing these …

Which Farm Animal Photos are Most Likely to Inspire People to Eat Vegan: A Reanalysis

This document presents a reanalysis of the data and the conclusions reported by Humane League Labs on January 25, 2015, in the blog post titled Report: Which farm animal photos are most likely to inspire people to eat vegan? Using …

Description of Omnibus Survey Used for Humane League Labs Study E005

This report synthesizes our knowledge of the survey methods used for Humane League Labs study E005. While this study used a single survey instrument, it was comprised of five relatively distinct parts examining a range of topics in …

Which Request Creates the Most Diet Change: A Reanalysis

This document presents a reanalysis of the data and the conclusions reported on September 20, 2015, by Humane League Labs in the blog post titled *Report: Which request creates the most diet change* and an accompanying report titled *Report: Does …