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.
Deducting Mileage. You also may deduct mileage of the vehicle. Any miles you drive in connection with business activity are deductible. The Internal Revenue Service publishes a deduction rate each year. Keep a log book of the miles you drive. Then, add up all miles you drive for business use.arning. You cannot deduct both miles and gasoline on your taxes. You must choose either mileage or the actual expense method of deduction. Choosing both will likely result in an audit. The IRS will disallow one of the deductions.