The main strength of Likert’s method is its simplicity and reliability in producing results which are accurate and useful. Once the statements have been finalized, the test can be taken by students and administered by teachers who need to have no prior knowledge about the system or behind the scenes workings of the survey. Since test takers can be forced to take a position on a statement, it can also work to provide answers for situations where a decision must be made one way or another.
At the same time, the test has been criticized for being too simplistic in nature and not applicable to situations where there is a possibility of having more than one dimension of attitude. Despite this, I believe that the survey would benefit the health campaign tremendously since we would be able to tell the attitude the students have towards exercise in general and the various statements in the survey in particular. The attitude of a person towards a particular statement helps in judging their expected behavior to a great extent.
Therefore, knowing this attitude will allow us to gear the campaign in a manner more suited towards changing the attitude of the students (if required) or educating them by removing any negative thoughts they have towards exercise. Knowing the attitude is akin to a marketing study which is conducted by a business for advertisement purposes and if we have a campaign for the students without knowing what they think then at best we would be preaching to the converted and at worse, we would be alienating them.