Which of the following threats to internal validity is present in a one-group pretest posttest…

Which of the following threats to internal validity is present in a one-group pretest posttest design

a. 1-Maturation

2-History

b. 3-Testing effect

c. 4-None of the above

5-All of the above

http://nursingmodules.com/wp-content/uploads/2020/02/logo-300x60.png 0 0 prince http://nursingmodules.com/wp-content/uploads/2020/02/logo-300x60.png prince2021-01-31 06:50:412021-01-31 06:50:41Which of the following threats to internal validity is present in a one-group pretest posttest…