Related Experiment Video
Updated: Aug 11, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Correlation between target height and children's height in upper and lower socio-economic classes in India
Vaman V Khadilkar1, Anuradha V Khadilkar, Gulshan B Maskati
1Growth and Paediatric Endocrine Research Unit, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India. akhadilkar@vsnl.net
Abstract:
This study aimed to test the hypothesis that correlation between target height and children's height may be less in Indian lower socioeconomic class (LSC) than in the upper socioeconomic class (USC). Three hundred and forty-six children from USC private schools and 359 children from LSC public schools were measured. Measured heights of LSC parents and reported heights of USC parents were used. Target height was calculated for both groups. The correlation between children's height and target height was significantly stronger in the USC (0.44) as compared to the LSC (0.31). Our study showed that the correlation between target height and child's height was weaker in the LSC and thus may need more cautious interpretation.
Related Concept Videos
Nature and Nurture
Variation: Normal Distribution, Range, and Standard Deviation
Coefficient of Correlation
If you suspect a linear relationship between x and y, then r can measure how strong the linear relationship is.
What the VALUE of r tells us:
The value of r is always between –1 and +1: –1 ≤ r ≤ 1.
The size of the correlation r indicates the strength of the linear...
Polygenic Traits
Correlations
Regression Toward the Mean