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May 2017 NUI Galway Study Finds BMI May Be a Factor in How a Child’s Academic Ability is Perceived
NUI Galway Study Finds BMI May Be a Factor in How a Child’s Academic Ability is Perceived
A new study by researchers in NUI Galway and Queens University Belfast demonstrates that obesity should not be understood solely as a health issue but rather one that may have much broader economic implications. The findings provide evidence that the body mass index (BMI) of a child’s mother may influence teachers’ perceptions of the academic ability of that child.
The study published in the journal Economics and Human Biology showed that children whose mother was obese were more likely to be rated by their teacher as below average in reading and in maths compared to those whose mother was leaner, after what the child actually obtained in terms of their actual test score in both maths and reading had been taken into account.
Although not the focus of this study, it is notable that other variables such as the child's gender, other aspects of the mother (education, income) and in extended models teacher characteristics (gender and experience) were significant which could also potentially be worrisome.
Michelle Queally, post-doctoral research fellow at the J.E. Cairnes School of Business and Economics at NUI Galway and co-author of the study, said: “The study found a significant relationship between a mother’s BMI and the probability of the child's ability being assessed as below average by their teacher. This is potentially worrisome and clearly indicates the need for further research. Other findings of the study show that boys, for example, are more likely to be rated as below average in reading and girls are more likely to be rated as below average by teachers in maths. The size of the marginal effect for girls is 0.02, while that for a mother’s BMI is 0.003. In other words a 10 point increase in BMI, moving someone from normal to obese, for example, would be roughly equivalent in terms of its impact on the probability of being assessed as below average as would the child being female.”
Using data collected as part of the first wave of the Growing up in Ireland Survey (a longitudinal cohort study of a nationally representative sample of over 8500 children from 900 schools in Ireland) the researchers from NUI Galway and Queens University Belfast investigated whether teacher’s assessments of a child’s academic ability is associated with the BMI of the child and/or its mother.
Findings from the study are consistent with other studies that have shown disadvantage experienced by the obese and in particular obese women in various domains of life. The study notes that the potential for a mother’s weight status to influence teachers’ assessments of their children’s perceived ability could have long term ramifications for educational outcomes given the role of teachers in examination marking.
While compelling, the analysis cannot be taken as definitive proof that teachers stereotype children based on an assessment of their mother’s obesity. It is probable, for example, that test scores form only a small part of the information used by teacher’s in making assessments of ability. Nevertheless the study highlights an area that warrants further investigation.
To read the full study in Economics and Human Biology visit: http://www.sciencedirect.com/science/article/pii/S1570677X16300624