Joanna Is Conducting a Research Project That Examines Whether Parent's

Multiple Choice

Joanna is conducting a research project that examines whether parent's income impacts a child's choice of college.Joanna thinks that parents who make a lot of money will have children who will attend private schools and parents who make little money will have children who will attend public schools."Parent's income" is the _____ in Joanna's project.

A) validity
B) reliability
C) hypothesis
D) independent variable
E) dependent variable