At what age do children typically begin to lose their primary teeth?

In an experimental design,

A) the events and behaviors are divided into two types: independent and dependent variables. B) investigators are unable to control for participants' characteristics that could reduce the accuracy of their findings. C) researchers infer cause and effect by directly controlling or manipulating changes in the dependent variable. D) researchers gather information on individuals, generally in natural life circumstances, and make no effort to alter their experiences.

According to Allport, personality has little to do with the physical body

Indicate whether the statement is true or false