Author Question: The group which received the placebo is called a. the experimental group b. the control group ... (Read 139 times)

kwoodring · **on:** Jun 20, 2018

The group which received the placebo is called

a. the experimental group
b. the control group
c. the matched group
d. the model group

Question 2

Standard deviation and variance are based on the logic of

a. an average deviation value.
b. a median deviation value.
c. the sum of deviation values.
d. a large amount of variability in the sample.