__________ is a method used to form groups of participants in an ...

[Ebrown]

__________ is a method used to form groups of participants in an experiment, whereas
  __________
  is a control technique that ensures every member of a population of interest has an
  equal chance of being chosen for an experiment.
 
  A) Random assignment; counterbalancing
  B) Participant selection; balancing
  C) Random selection; random assignment
  D) Random assignment; random selection

Question 2

The results of a(n) ________ statistical test show whether the results of an experiment would
  occur frequently or rarely by chance.
 
  A) descriptive B) correlational C) inferential D) summary

[iceage]

Answer to Question 1

D

Answer to Question 2

C

[Ebrown]

Thanks for the timely response, appreciate it

[daiying98]

Gracias!