Alzheimer's disease is a form of:

A two-way factorial design

A) is "two-way" because there are two variables that divide the groups being studied. B) varies only in name from a one-way analysis of variance. C) considers two levels of a single variable. D) considers a single level of two variables.

For which of the following research questions would it be least important to consider sociocultural variables?

A. How do intimate relationships develop? B. What factors influence parenting style? C. Do people instinctively follow rules for social interaction? D. What factors influence the length of time allowed for grieving the death of a loved one?