Author Question: Dr. Dominguez conducted a study of children with attention-deficit/hyperactivity disorder. She ... (Read 44 times)

folubunmi · **on:** Jun 22, 2018

Dr. Dominguez conducted a study of children with attention-deficit/hyperactivity disorder.

She developed a new medication that was significantly better than placebo in treating the disorder, but this effect was not found in a similar study conducted in another laboratory. Dr. Dominguez's study has __________ internal validity and __________ external validity.
a) high; high
b) high; low
c) low; high
d) low; low

Question 2

How does age affect the severity of dysthymia?

a) Dysthymia is stable throughout adulthood.
b) Dysthymic periods are more brief with age.
c) Dysthymic periods occur more frequently with age.
d) Dysthymia lessens over time, even without treatment.