The basic Guttman Scale is a survey methodology based on a 'binary' result, meaning a series of Yes or No answers to questions. This is a very straightforward survey methodology, and can be very effective if questions are fairly created, rather than used as leading questions. The Guttman Scale also includes a binary approach to child achievement tests, establishing a standard of pass.
Examples of Gutmann Scale:
Basic question with binary value: Do you like cheese, yes or no?|
Question weighting: The weighting of binary questions is a highly debated area of survey analysis. For example: Do you favor the death penalty?, yes or no? as opposed to Do you favor the death penalty for mass murderers?, yes or no?, which are actually very differently weighted questions.