A classmate designs the following experiment. What advice would you give him to improve upon it? Group A M T M Group B M T(zero level) M
a. to specify both groups as receiving zero level of T
b. not to perform a pretest-posttest
c. to randomly assign participants to groups
d. to randomly select participants from the population
Question 2
In a Solomon four-group design:
a. participants who get a pretest also get a posttest.
b. not all participants receive the pretest.
c. not all the participants received the posttest.
d. all participants receive a pretest but not all receive a posttest.
The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in
Short, Upbeat Massage Sessions can Improve Mental Alertness.
Improve your driver posture
What title would chemists give to an orbital characterized by n=8 and 1=4?
The Taylor–Woods–Hughes experiment
Frederick Griffith’s experiment identifying a ″transformation factor″ responsible for heredity