The use of this technique to divide the sample into the various ...

[Capo]

The use of this technique to divide the sample into the various conditions in the experiment involves creating the groups on the basis of chance alone.
 
  a. haphazard assignment c. construction
  b. matching d. random assignment

Question 2

The practice of deliberately constructing equivalent groups from the sample by measuring all participants on some related variable and then assigning them to conditions on the basis of their scores.
 
  a. random assignment c. building
  b. haphazard assignment d. matching

[mistyjohnson]

Answer to Question 1

D
This is the definition of random assignment.

Answer to Question 2

D
This is what matching does. The matching variable must be related to the area of study, and the participants are assigned to groups on the basis of how they score on the matching variable.

[Capo]

Thank you

[mistyjohnson]

No problem