Evaluation Introduction and Explanation Bridgework conducted tests to see if our plays accomplished their objectives. Bridgework evaluated the plays by comparing the attitudes of students who did not seen the play (a control group) with the attitudes of students who did see the play (the experimental group). The evaluator devised statements that used semantic differentials to measure how the students felt.		If you would like to view the list of available evaluations, click here .
For instance, to measure whether or not a play increased confidence in ability to resolve conflict, a survey might use the following statement: If somebody in my class gets mad at me, and I get mad at them, I ________ that I can help solve the problem so we can stop being enemies. To fill in the blank, students would then choose from the following: strongly believeblnkbelieveblnkam not sureblnkdoubtblnkstrongly doubt The evaluator assigned scores to each response and compared the average score of the control group to the average score of the experimental group. If, for instance, the average score of the experimental group answering the statement above was closer to "strongly believe", the evaluator deduced that the play was likely to cause students to be more confident in their ability to resolve conflict. The evaluator used a Z-test to determine whether any difference was significant or merely a result of chance or accident.