Author Question: Dividing subjects into groups at the beginning of experimental research using a random process, so ... (Read 67 times)

bobbysung · **on:** Aug 17, 2018

Dividing subjects into groups at the beginning of experimental research using a random process, so the experimenter can treat the groups as equivalent is called _______________.

a. a control group
b. an experimental group
c. random assignment
d. random dividing
e. segregating the subjects

Question 2

What was not recommended as an example of good timing in a mail survey?

a. have survey arrive near end of week at households
b. begin surveys during the summer
c. have surveys arrive at beginning of week at businesses
d. avoid vacation periods or historical events