The description of the techniques generally used in the development and use of a ratio study is developed using the most current version of the Standard on Ratio Studies (Standard), issued by the International Association of Assessing Officers (IAAO). Two other references, Mass Appraisal of Real Property and Property Assessment Valuation, also issued by the IAAO, contain discussion of the development and use of ratio studies. Further, the Division sets forth procedures for the development of the ratio study in the Title 350 Neb. Admin. Code Chapter 12, Sales File Regulations. The Standard provides recommendations for the design, preparation, interpretation, and use of ratio studies for a number of purposes. The Standard assumes that ratio studies will contain a statistically adequate sample of sales to represent the level of value for a particular jurisdiction being measured.
Neb. Rev. Stat. §§ 77-702, 77-1327, and 77-5027.
350 Neb. Admin. Code, ch. 17, § 001