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.
With the standard mileage rate, you take a mileage deduction for a specified number of cents for every business mile you drive. The IRS sets the standard mileage rate each year. For 2014, the rate was 56Â¢ per mile, and the 2015 rate is 57.5Â¢ per mile.To figure out your deduction, simply multiply your business miles by the applicable standard mileage rate. Example: Ed, a realtor, drove his car 20,000 miles for business during 2014.he standard mileage rate requires that you keep track of how many miles you drive for business and the total miles you drive, not the actual expenses for your car, such as gas, maintenance, or repairs.