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client: ea_forum
project_id: curated
narrator: pw
qa: mds
narrator_time: 2h00m
qa_time: 1h00m
---

I don’t think the existing evidence justifies HLI's estimate of 50% household spillovers. 

My main disagreements are:

• Two of the three RCTs HLI relies on to estimate spillovers are on interventions specifically intended to benefit household members (unlike StrongMinds’ program, which targets women and adolescents living with depression). 
• Those RCTs only measure the wellbeing of a subset of household members most likely to benefit from the intervention.
• The results of the third RCT are inconsistent with HLI’s estimate.

Original article:

https://forum.effectivealtruism.org/posts/gr4epkwe5WoYJXF32/why-i-don-t-agree-with-hli-s-estimate-of-household

Narrated for the Effective Altruism Forum by TYPE III AUDIO.

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