Mr. Jacobs wants to find out whether a new program for teaching physical education promotes students' physical development. So he gives his students a number of tests before they begin the program (pretests) and the same tests again after they have been in the program for eight months (posttests). He finds that the students' posttest scores are higher than their pretest scores and so concludes
that the program is effective. What is definitely wrong with Mr. Jacobs' conclusion?
A) Eight months is too short a time for such a program to have a long-term effect.
B) There are other possible explanations for his results.
C) Tests are not a good measure of physical development.
D) The posttests should always be different from the pretests.
B
You might also like to view...
With regard to religion, what is the most important teacher expectation?
a. Do not devalue another's religious beliefs. b. Be aware of a wide range of religious beliefs. c. Do not allow religion to become an issue in the classroom. d. Be able to explain the dominant belief in the community.
A sample size of about 60 subjects per group suggests that the researcher is chasing a:
A) small effect B) medium effect C) large effect D) cannot be determined
Which of the following are typically used to provide personal teacher prompts that lead students to a deeper understanding of a piece of literature?
A) dialogue journal B) double-entry journal C) nature journal D) learning log
A person who scores at the 85%tile scored as well or better than which of the following groups?
A. 14% of the students in that age/grade B. 84% of the students in that age/grade C. 85% of the students in that age/grade D. 15% of the students in that age/grade