Considerable research has sought to identify factors that ...

[notis]

Considerable research has sought to identify factors that contribute to successful behavior change and to
  develop more effective tools for clinicians to encourage their patients to adopt healthier habits, especially in the
  context of a brief office visit.
  An antonym for contribute is
 
  a. support
  b. impede
  c. interest
  d. identify

Question 2

Documenting the sources in your proposal is not necessary.
 
  Indicate whether the statement is true or false

[gasdhashg]

Answer to Question 1

b. impede

Answer to Question 2

F

[notis]

TYSM

[cpetit11]

Thanks for the timely response, appreciate it