Question

You are asked to conduct a study to determine whether there is an association between consumption of milk proteins and levels of serum antibodies in children with autism. You randomly select 50 children previously enrolled in an autism clinical trial, and they are the sample for the study. You select an alpha of 0.05 and a power of 0.80.

What is the independent variable?

Answer 1

SInce the difference in the amount of consumption of milk proteins is one of the main reason for different levels of various serum antibodies. For the particular or optimum level of requirement of antibodies in human beings requires proteins that can be easily get from milk, so that why amount of consumption of milk proteins is the main factor which will contribute to the amount of essential serum antibodies in children.

That is., levels of serum depends on the consumption of milk. So among the given two variables, the consumption of milk is depends on levels, implies the consumption of milk proteins is independent variable whereas the different levels of serum antibodies are dependent variable.