Hypothesis-testing experiments involve a) intensive case ...

[schs14]

Hypothesis-testing experiments involve
 
  a) intensive case studies.
  b) making predictions based on theory.
  c) manipulation of the dependent variable.
  d) development of practical treatment techniques.

Question 2

After the effects of heroin wear off, the user typically
 
  a) feels drowsy.
  b) becomes extremely hungry.
  c) experiences a letdown, often almost a stupor.
  d) a heightened sense of awareness.

[juliaf]

Answer to Question 1

b

Answer to Question 2

c

[schs14]

Gracias!

[bassamabas]

Great answer, keep it coming