Question

Which term refers to dividing a sample into a treatment group and a control group?

Answer 1

I believe the answer is random assignment 

hope this helps :)

Answer 2

Random assignment is the term that refers to dividing a sample into a treatment group and a control group. The procedure is used to ensure that each participant has the same opportunity to be assigned to any given group. Random assignment refers to how those chosen participants are then assigned to experimental groups.