http:rtisuccessorg. Progress monitoring, one of the essential. components of Response to Intervention (RTI), is. characterized by repeated measurement of academic. performance that is conducted at least monthly. The. process may be used to assess studentsâ academic. performance over time, to quantify student rates of.
Calculating the Air Quality Index. The AQI is calculated by converting measured pollutant concentrations to a uniform index which is based upon peer-reviewed scientific evidence of the health effects associated with a pollutant.
The formula for the index of qualitative variation is: IQV = K(1002 â Î£Pct2) / 1002(K â 1) Where K is the number of categories in the distribution and Î£Pct2 is the sum of all squared percentages in the distribution. There are four steps, then, to calculating the IQV: Construct a percentage distribution.