Dr. story found that the children in two-parent homes had higher reading-test scores than those in one-parent homes. however, the children from two-parent homes had more siblings than those in one-parent homes. what is the confounding variable?

number of siblings        

Explanation:

Confounding variables, in statistics are variables that affect both the independent variable and dependent variable, causing a bogus association. It can not be characterized in terms of associations and correlations, as it a casual concept. Confounding variables can devastate an experiment and create pointless results.

The approach to reduce confounding variables is Restriction, Randomization, Matching, etc.

because he is that the right

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.