The single subject ABAB design cannot be used to study behaviors ...

[dalyningkenk]

The single subject ABAB design cannot be used to study behaviors that
 
  a) are not prevalent in the population.
  b) do not return to baseline.
  c) are highly reactive.
  d) have highly heritable components.

Question 2

What have researchers found concerning the possible etiology of the sleep disorder narcolepsy?
 
  a) The disorder is sex-linked but only occurs when there is a viral infection early in life.
  b) The disorder seems to be related to ingestion of toxins that alter the brain's sleep mechanism.
  c) Brain imaging scans have identified tumors in the limbic system that seem responsible for the disorder.
  d) The disorder has a strong genetic component, most likely related to a cluster of genes on chromosome 6.

[Jane]

Answer to Question 1

b

Answer to Question 2

d

[dalyningkenk]

TYSM

[tandmlomax84]

Gracias!