Dexter is interested in measuring people's attitudes about blood spatter analysts. He has decided to do a survey that contains multiple statements, where participants simply have to indicate whether they agree or disagree with the statements.

Develop a rating scale for Dexter to use in his study. Choose a reasonable number of points for what Dexter is trying to measure, including whether to have a midpoint or not. After developing rating scale, please provide a rationale for why it was done this way.