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Summary table and output
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Direct evidenceCognitiveGrowthMortalityMorbidityAnemiaPlausibilityWeighted average
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Weight35%15.0%15.0%5.0%10.0%10.0%10.0%
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SMC 21243132.1
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VAS00043220.9
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Development effects of VAS vs SMC
44%
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Rubric
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ScoreDefinition
Rationale for GiveWell's scoring can be found here: https://docs.google.com/document/d/1IpPDBtutYUUplXCaZhIrE9UbXGAyYUi4dm3ynhtqId8/edit?usp=sharing
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Rationale for SoGive's adjustments can be found here: https://docs.google.com/document/d/1BC5gQZo_FbyaaZl5gKQ_lYfxLj2xpd8hCjQibGd2Mqg/edit
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Direct evidence of impact on economic outcomes
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<0.5% consumption increase)
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2
Compelling evidence suggesting a small effect size (<0.5% consumption increase), or uncertain evidence suggesting a moderate effect size (0.5 - 1% consumption increase)
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3
Compelling evidence suggesting a moderate effect size (0.5 - 1% consumption increase), or uncertain evidence suggesting a large effect size (>1% consumption increase)
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4
Compelling evidence suggesting a large effect size (>1% consumption increase)
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Indirect evidence: Cognitive effects
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<0.2 SD)
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2
Compelling evidence suggesting a small effect size (<0.2 SD), or uncertain evidence suggesting a moderate effect size (0.2 - 0.4 SD)
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3
Compelling evidence suggesting a moderate effect size (0.2 - 0.4 SD), or uncertain evidence suggesting a large effect size (>0.4 SD)
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4
Compelling evidence suggesting a large effect size (>0.4 SD)
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Indirect evidence: Growth
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<0.4 SD weight gain)
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2
Compelling evidence suggesting a small effect size (<0.4 SD weight gain), or uncertain evidence suggesting a moderate effect size (0.4 - 0.8 SD weight gain)
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3
Compelling evidence suggesting a moderate effect size (0.4 - 0.8 SD), or uncertain evidence suggesting a large effect size (>0.8 SD weight gain)
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4
Compelling evidence suggesting a large effect size (>0.8 SD weight gain)
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Indirect evidence: All-cause mortality
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<10% reduction)
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2
Compelling evidence suggesting a small effect size (<10% reduction), or uncertain evidence suggesting a moderate effect size (10-20% reduction)
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3
Compelling evidence suggesting a moderate effect size (10 - 20% reduction), or uncertain evidence suggesting a large effect size (>20% reduction)
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Compelling evidence suggesting a large effect size (>20% reduction)
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Indirect evidence: Morbidity
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<200 YLDs per 100,000 person-years)
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2
Compelling evidence suggesting a small effect size (<200 YLDs per 100,000 person-years), or uncertain evidence suggesting a moderate effect size (200-400 YLDs per 100,000 person-years)
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3
Compelling evidence suggesting a moderate effect size (200-400 YLDs per 100,000 person-years), or uncertain evidence suggesting a large effect size (>400 YLDs per 100,000 person-years)
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4
Compelling evidence suggesting a large effect size (>400 YLDs per 100,000 person-years)
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Indirect evidence: Anemia
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0
No substantial evidence of effect, or compelling evidence suggesting a precisely measured null effect
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1
Uncertain evidence suggesting a small effect size (<20% reduction in anemia prevalence)
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2
Compelling evidence suggesting a small effect size (<20% reduction in anemia prevalence), or uncertain evidence suggesting a moderate effect size (20-40% reduction in anemia prevalence)
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3
Compelling evidence suggesting a moderate effect size (20-40% reduction in anemia prevalence), or uncertain evidence suggesting a large effect size (>40% reduction in anemia prevalence)
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4
Compelling evidence suggesting a large effect size (>40% reduction in anemia prevalence)
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Indirect evidence: Biological plausibility
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0
Very low plausibility; a meaningful effect seems unlikely
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1
Low plausibility; a meaningful effect seems neither likely nor unlikely
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2
Moderate plausibility; a meaningful effect seems somewhat likely
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3
High plausibility; a meaningful effect seems likely
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4
Very high plausibility; a meaningful effect seems very likely
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