Author Question: A researcher is exploring the physiological causes of certain learning disorders. This study is ex ... (Read 341 times)

Zoey63294 · **on:** Jun 20, 2018

A researcher is exploring the physiological causes of certain learning disorders. This study is ex post facto because the

a. subjects are already known to differ on the dependent variable.
b. subjects are already known to differ on the independent variable.
c. a and b
d. None of these are true.

Question 2

Choose the term that is described in each of the phrases below. Decreases the ability of the experimenter to generalize his findings.

a. random assignment
b. randomized matching
c. homogeneous selection
d. analysis of covariance
e. use of subjects as their own controls