A model for the design of instruments used in observing traits or testing unobservable traits. The preferred method of developing tests and scoring for tests, like the Likert scale.
The Mileage Tax Deduction. The Mileage Tax Deduction is a credit made for the 21st century. The amount of road travel we engage in for the most common aspects of our life is either wonderful or absurd depending on how you view things.ou get the choice of claiming the actual vehicle expenses deduction or taking the mileage rate. Obviously you want the one that affords you the biggest advantage. The actual expense deduction includes: 1  Gas.
For example, the depreciation component of the business standard mileage rate for 2015 will be 24 cents-per-mile, a two-cent increase from the 22-cents-per-mile rate that was effective for 2014.he taxpayer using the standard mileage rate need only keep a log of his or her business miles. To calculate the deduction, the taxpayer will multiply the standard mileage rate by the number of business miles traveled.