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The problem
Intervention: Presence of an older sister (versus an older brother) as a family structure factor
Who it was tested with: Girls in sub-Saharan Africa with an older sibling.
Experience from people who deliver programmes: stories, case studies and lessons learned. Valuable for understanding how and why, and for spotting what to test next, but not a measure of effect.
[tier lowered: the text shows no comparison-group design] [the quoted passage was not found in the text] "Relying on the randomness of the firstborn siblings sex, we show that having an older sister (as opposed to an older brother) reduces the likelihood of marrying before the age of 18 by 1.5 percent." This indicates a quasi-experimental design using a natural instrument to identify causal effects, comparing groups defined by sibling sex.
The abstract does not describe the underlying dataset, countries included, or possible confounding factors beyond sibling sex randomness.
Across countries and designs
1 study · 0 countries
