Oral nutritional supplementation improves growth in children at malnutrition risk and with picky eating behaviors.
Using article: Khanna D, Yalawar M, Saibaba PV, et al. Oral nutritional supplementation improves growth in children at malnutrition risk and with picky eating behaviors. 2021;13(10):3590. doi:10.3390/nu13103590 Is this a causal or an associative hypothesis? Is the hypothesis directional or non-directional? What would be the null hypothesis for this study?