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. No, because he didn't conduct an experimental study
b. No, because his study wasn't conducted in a scientific laboratory
c. Yes, provided that his students responded truthfully to the survey
d. Yes, because he used random assignment
Question 2
Experimental research requires which one of the following?
a. Manipulating an aspect of the environment
b. Being able to predict two or more variables
c. Describing each variable in considerable detail
d. Studying behavior in an actual classroom environment
Cartoon of Uncle Sam teaching states in Puck
Sample Exercise Program for Healthy Older Adults (cont.)
How to find the area of any triangle given its three sides
How to find the sum of the interior angles of any polygon
How to use a tree diagram to find the probability
Find derivative using product rule