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.
The standard mileage rate is by far the easiest to use. With the standard mileage rate, you take a mileage deduction of a specified number of cents for every business mile you drive. The IRS sets the standard mileage rate each year. The 2015 Mileage Rate is 57.5 cents per mile.To figure out your mileage deduction, simply multiply your business miles by the standard mileage rate for the specific year. Example: Ed, a salesperson, drove his car 20,000 miles for business during 2014.o determine his mileage deduction, he simply multiplies his business miles by the applicable standard mileage rate (56 cents per mile in 2014). This gives him a total mileage deduction for the year of $11,200 (56 cents Ã 20,000 = $11,200).