告知母亲与婴儿交谈的益处：来自加纳的实验证据
Informing Mothers about the Benefits of Conversing with Infants: Experimental Evidence from Ghana
American Economic Journal: Economic Policy · 2025 · [{"name": "Pascaline Dupas", "affiliation": ["Center for Economic and Policy Research", "Princeton University"]}, {"name": "Camille Falézan", "affiliation": ["Moscow Institute of Thermal Technology"]}, {"name": "Seema Jayachandran", "affiliation": ["Princeton University"]}, {"name": "Mark Walsh", "affiliation": ["Stanford University"]}]
中文摘要
我们评估了一项旨在促进父母与婴儿语言互动的低成本干预，而这种语言互动在发展中国家往往较为有限。在我们的随机实验中，近期生育或怀孕的母亲观看了一段三分钟的信息视频，并收到一份主题日历。六个月后，处理组母亲报告称，她们更加相信语言互动的益处，亲子对话更为频繁，婴儿语言技能也更为先进。处理对亲子对话频率和婴儿技能等客观测度指标的效应为正，但在统计上不显著。我们发现处理对客观亲子对话的即时效应更大，这表明若行为改变能够更持久地维持，长期效应可能会更大。（JEL D83, D91, I26, J13, J16, O12）
Abstract
We evaluate a low-cost intervention designed to boost parents’ verbal engagement with infants, which tends to be limited in developing countries. In our randomized experiment, recent or expectant mothers watched a three-minute informational video and received a themed calendar. Six months later, treated mothers reported stronger belief in the benefits of verbal engagement, more frequent parent-infant conversation, and more advanced infant language skills. Treatment effects on objective measures of parent-child conversation frequency and infant skills were positive but insignificant. We find larger immediate treatment effects on objective parent-child conversation, suggesting potentially larger long-term effects had the behavior change stuck more. (JEL D83, D91, I26, J13, J16, O12)