In this article, I present an alternative formula for the calculation of a factorial analysis of variance (ANOVA), which requires only the mean, standard deviation, and size for each cell of the design, rather than the individual scores. This new method allows a modern hand-held calculator ...
The INTERGROWTH 21 Newborn Size Calculator was used to calculate the birthweight centiles, and twins with birthweights below the 10th centile were analyzed. Results: This study involved 394 pairs of twins born to mothers with a mean age of 30.5 ± 5.6 years, and the majority (73.1%) ...