The evidence linking cell phone use to automobile accidents is:

Therapy outcome studies typically have a no-treatment control group, but results from such studies can be difficult to interpret because

a. people waiting for therapy often seek counseling and advice from others. b. it is not possible to randomly assign people to that group. c. the control group patients usually improve more than the treated patients. d. nobody wants to wait for therapy.

The psychoanalytic theory of human development emphasizes nature (traits evident at birth) over nurture (all the traits that emerge after birth)

Indicate whether this statement is true or false.