1. A method for determining attribute score levels from an assessment, the method comprising: for at least one item on the assessment, wherein the item tests for at least one attribute: generating a first distribution having a response propensity represented by a highest level of execution for each attribute tested by the item; for at least one score, determining an item threshold for the first distribution corresponding to a level of execution corresponding to the score; for at least one attribute tested by the item: generating a second distribution having a response propensity represented by a lowest level of execution for the attribute and the highest level of execution for all other attributes tested by the item, and determining a mean parameter for the second distribution; and determining an attribute score level for at least one score based on the at least one item threshold and the at least one mean parameter.